Evidence used
- No CISA KEV confirmation is currently recorded.
- The selected CVSS metric records a network-reachable, unauthenticated path with no user interaction.
- EPSS is 0.24% for the current model date.
BlackTreeCVE IntelligenceFull vulnerability report · 2026
CVE-2026-18540High confidence
undici vulnerable to downstream response splitting via retry interceptor
undici · undici
Official source article: GitHub GHSA-R53P-7PC4-XJ5R ↗. Check the applicable product and release in the original source.
3.7LowCVSS 3.1
Patch only the product branches with a verified fix
Fix availability varies by productLow technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority. Verified remediation exists for at least one product or source, but 2 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.
R
Open reassessment dashboard →Operational reassessment
Published severity in operational context
Published severityLow→Operational priority:Low, unchanged from published severity.unchanged
Compensating controls
- Validate the affected product branch and deploy the verified fixed release.
- Restrict the affected network interface to trusted sources where business-safe.
- Monitor vendor guidance and exploitation sources for a material change.
Verification
- Confirm that the asset runs undici undici and falls inside the recorded affected range.
- Verify the installed build against the product-specific fixed version after deployment.
- Validate exposure, authentication requirements and compensating controls in the actual environment.
- Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Remediation availability differs by product scope
Verified remediation exists for at least one product or source, but 2 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.
- Debian Security Tracker: 2 affected package states with no published fix
Distribution package intelligence
5 package statesRelease-specific package status
Debian, ubuntu findings are scoped to the named distribution, release and source package. An absent finding does not mean a package is unaffected.
Package result overrides the generic status
BlackTree has verified remediation for at least one product or source, but the relevant distribution still reports no fixed package for 2 affected package states shown here. Treat those rows as affected with no fix until that distribution publishes a fixed version.
Repository candidate not checked
A published vendor fix does not prove that a matching update is enabled and installable on a particular asset. Confirm the local package candidate before scheduling remediation.
| Distribution release | Source package | Vendor state | Fixed version | Evidence |
|---|---|---|---|---|
| Debian trixietrixie · source | node-undici | Affected, no fix publishedDebian currently tracks this release as open. | Not published in this feed | Debian Security Tracker ↗Source updated 5 Oct 2026 |
| Debian bookwormbookworm · source | node-undici | Affected, no fix publishedDebian currently tracks this release as open. | Not published in this feed | Debian Security Tracker ↗Source updated 5 Oct 2026 |
| Debian forkyforky · source | node-undici | Vendor fix publishedDebian records a fixed source-package version for this release. | 8.10.2+dfsg+~cs3.2.2-1 | Debian Security Tracker ↗Source updated 5 Oct 2026 |
| Debian sidsid · source | node-undici | Vendor fix publishedDebian records a fixed source-package version for this release. | 8.10.2+dfsg+~cs3.2.2-1 | Debian Security Tracker ↗Source updated 5 Oct 2026 |
| Ubuntu 24.04 LTSnoble · standard archive | node-undici | Under evaluationCanonical reports that the package might be affected and still needs evaluation or fixing. | Not published in this feed | Canonical Ubuntu Security ↗Source updated 5 Oct 2026 |
Open-source package ranges6 source-attributed ranges
These OSV and GitHub advisory ranges apply only to the named package and ecosystem. A listed fixed version is not a universal product patch or proof that an update is installed.
| Ecosystem and package | Affected range | First fixed version | Evidence |
|---|---|---|---|
| npmundici | < 6.28.1 | 6.28.1 | GitHub advisory ↗upstream repository advisory · 29 Sep 2026 |
| npmundici | >= 7.0.0, < 7.29.1 | 7.29.1 | GitHub advisory ↗upstream repository advisory · 29 Sep 2026 |
| npmundici | >= 8.0.0, < 8.10.2 | 8.10.2 | GitHub advisory ↗upstream repository advisory · 29 Sep 2026 |
| npmundici | SEMVER: introduced 0; fixed 6.28.1 | 6.28.1 | OSV record ↗aggregator derived · 29 Sep 2026 |
| npmundici | SEMVER: introduced 7.0.0; fixed 7.29.1 | 7.29.1 | OSV record ↗aggregator derived · 29 Sep 2026 |
| npmundici | SEMVER: introduced 8.0.0; fixed 8.10.2 | 8.10.2 | OSV record ↗aggregator derived · 29 Sep 2026 |
Direct vendor intelligence
1 currentAuthoritative vendor CSAF and VEX advisories
Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.
CVE-2026-18540 · CSAF 2.0 · revision 3 · finalRed Hat Product Securityundici: undici: HTTP response splitting via retry interceptor
The vendor explicitly identifies these products as affected by this CVE.
- exploit-intelligence/vulnerability-analysis-rhel9 as a component of Exploit Intelligence
- openshift-pipelines/pipelines-console-plugin-pf5-rhel9 as a component of OpenShift Pipelines
- openshift-pipelines/pipelines-console-plugin-rhel9 as a component of OpenShift Pipelines
- amq-broker-bin.zip as a component of Red Hat AMQ Broker 7
- amq-broker-maven-repository.zip as a component of Red Hat AMQ Broker 7
- automation-platform-ui.src as a component of Red Hat Ansible Automation Platform 2
- rh-podman-desktop.git as a component of Red Hat Build of Podman Desktop
- rhdh/red-hat-developer-hub-backstage-plugin-lightspeed-backend as a component of Red Hat Developer Hub
- rhdh/red-hat-developer-hub-backstage-plugin-orchestrator-backend as a component of Red Hat Developer Hub
- rhdh/red-hat-developer-hub-backstage-plugin-orchestrator-backend-module-loki as a component of Red Hat Developer Hub
- rhdh/red-hat-developer-hub-backstage-plugin-scaffolder-backend-module-orchestrator as a component of Red Hat Developer Hub
- rhdh/rhdh-hub-rhel9 as a component of Red Hat Developer Hub
- Summary
- A flaw was found in undici. An attacker-controlled upstream server can exploit a vulnerability in the retry interceptor, which incorrectly appends data to a ranged retry response. This can cause the response body to be longer than the Content-Length observed by the application. Consequently, an application relaying such a response to a downstream HTTP/1.1 peer without proper framing normalization may enable HTTP response splitting or desynchronization, allowing an attacker to inject arbitrary content into subsequent responses.
- Remediation
- For details on how to apply this update, which includes the changes described in this advisory, refer to: https://images.redhat.com/
Low technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority. Verified remediation exists for at least one product or source, but 2 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.
Fix availability varies by product01
What, why and how
undici's retry interceptor can append the body of a ranged retry response to bytes already delivered from an earlier partial response while still presenting the original response's status and headers. This happens when an upstream server delivers part of a body without a trustworthy resume checkpoint, for example a non-success response whose headers were already sent or a partial-content response with an unusable content range, then closes the connection and answers the resumed range request with more bytes. As a result the response body can be longer than the Content-Length that the application observes. An application that relays such a response to a downstream HTTP/1.1 peer without normalizing the framing can emit a body that exceeds the forwarded Content-Length, and the excess bytes can be interpreted as the start of a following response, which enables downstream response splitting or desynchronization. Exploitation requires an attacker-controlled upstream server and an application that forwards the response through a framing-sensitive path. This affects undici versions before 6.28.1, from 7.0.0 up to 7.29.1, and from 8.0.0 up to 8.10.2. Users should upgrade to undici 6.28.1, 7.29.1, or 8.10.2.
What
undici's retry interceptor can append the body of a ranged retry response to bytes already delivered from an earlier partial response while still presenting the original response's status and headers. This happens when an upstream server delivers part of a body without a trustworthy resume checkpoint, for example a non-success response whose headers were already sent or a partial-content response with an unusable content range, then closes the connection and answers the resumed range request with more bytes. As a result the response body can be longer than the Content-Length that the application observes. An application that relays such a response to a downstream HTTP/1.1 peer without normalizing the framing can emit a body that exceeds the forwarded Content-Length, and the excess bytes can be interpreted as the start of a following response, which enables downstream response splitting or desynchronization. Exploitation requires an attacker-controlled upstream server and an application that forwards the response through a framing-sensitive path. This affects undici versions before 6.28.1, from 7.0.0 up to 7.29.1, and from 8.0.0 up to 8.10.2. Users should upgrade to undici 6.28.1, 7.29.1, or 8.10.2.
Why
The product acts as an intermediary HTTP agent (such as a proxy or firewall) in the data flow between two entities such as a client and server, but it does not interpret malformed HTTP requests or responses in ways that are consistent with how the messages will be processed by those entities that are at the ultimate destination.
How
An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.
What
undici's retry interceptor can append the body of a ranged retry response to bytes already delivered from an earlier partial response while still presenting the original response's status and headers. This happens when an upstream server delivers part of a body without a trustworthy resume checkpoint, for example a non-success response whose headers were already sent or a partial-content response with an unusable content range, then closes the connection and answers the resumed range request with more bytes. As a result the response body can be longer than the Content-Length that the application observes. An application that relays such a response to a downstream HTTP/1.1 peer without normalizing the framing can emit a body that exceeds the forwarded Content-Length, and the excess bytes can be interpreted as the start of a following response, which enables downstream response splitting or desynchronization. Exploitation requires an attacker-controlled upstream server and an application that forwards the response through a framing-sensitive path. This affects undici versions before 6.28.1, from 7.0.0 up to 7.29.1, and from 8.0.0 up to 8.10.2. Users should upgrade to undici 6.28.1, 7.29.1, or 8.10.2.
Why
The product acts as an intermediary HTTP agent (such as a proxy or firewall) in the data flow between two entities such as a client and server, but it does not interpret malformed HTTP requests or responses in ways that are consistent with how the messages will be processed by those entities that are at the ultimate destination.
How
An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.
02
Exploit reality and attack path
CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.
Observed exploitation No confirmed evidence
?
Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.
Public PoC / exploit material None recorded
?
Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.
- Likely attack path
- a network path → Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') → cause the confidentiality, integrity or availability impact described by the vendor
- Attack surface
- Network
- Privileges required
- None: unauthenticated exploitation is possible
- User interaction
- None
- Attack complexity
- High: exploitation depends on specific conditions
- Security boundary
- Unchanged: impact remains within the vulnerable component's security authority
- Weakness
?
CWE means Common Weakness Enumeration: a standard category for the underlying weakness. - CWE-444 ↗
CWE-444: Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling'). The product acts as an intermediary HTTP agent (such as a proxy or firewall) in the data flow between two entities such as a client and server, but it does not interpret malformed HTTP requests or responses in ways that are consistent with how the messages will be processed by those entities that are at the ultimate destination.
- CVSS vector
?
CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity. CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:NCommon Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.
AVNetworkAttack vector: The vulnerable component can be reached over a network.ACHighAttack complexity: Successful exploitation depends on specific conditions outside the attacker's direct control.PRNonePrivileges required: The attacker does not need an account or existing privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CNoneConfidentiality impact: No direct loss is represented by this metric.ILowIntegrity impact: A successful attack can cause a limited loss.ANoneAvailability impact: No direct loss is represented by this metric.- Post-exploitation / living off the land
- No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
03
Patch and workaround
Operational remediation based on structured source evidence.
- Status
?
Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change. - Fix availability varies by product
- Affected
- exploit-intelligence/vulnerability-analysis-rhel9 as a component of Exploit Intelligence
- openshift-pipelines/pipelines-console-plugin-pf5-rhel9 as a component of OpenShift Pipelines
- openshift-pipelines/pipelines-console-plugin-rhel9 as a component of OpenShift Pipelines
- amq-broker-bin.zip as a component of Red Hat AMQ Broker 7
- amq-broker-maven-repository.zip as a component of Red Hat AMQ Broker 7
- automation-platform-ui.src as a component of Red Hat Ansible Automation Platform 2
- rh-podman-desktop.git as a component of Red Hat Build of Podman Desktop
- rhdh/red-hat-developer-hub-backstage-plugin-lightspeed-backend as a component of Red Hat Developer Hub
- rhdh/red-hat-developer-hub-backstage-plugin-orchestrator-backend as a component of Red Hat Developer Hub
- rhdh/red-hat-developer-hub-backstage-plugin-orchestrator-backend-module-loki as a component of Red Hat Developer Hub
- rhdh/red-hat-developer-hub-backstage-plugin-scaffolder-backend-module-orchestrator as a component of Red Hat Developer Hub
- rhdh/rhdh-hub-rhel9 as a component of Red Hat Developer Hub
- grafana as a component of Red Hat Enterprise Linux 10
- grafana-selinux as a component of Red Hat Enterprise Linux 10
- grafana.src as a component of Red Hat Enterprise Linux 10
- nodejs as a component of Red Hat Enterprise Linux 10
- nodejs-devel as a component of Red Hat Enterprise Linux 10
- nodejs-docs as a component of Red Hat Enterprise Linux 10
- nodejs-full-i18n as a component of Red Hat Enterprise Linux 10
- nodejs-libs as a component of Red Hat Enterprise Linux 10
- nodejs-npm as a component of Red Hat Enterprise Linux 10
- nodejs22.src as a component of Red Hat Enterprise Linux 10
- nodejs24 as a component of Red Hat Enterprise Linux 10
- nodejs24-devel as a component of Red Hat Enterprise Linux 10
- nodejs24-docs as a component of Red Hat Enterprise Linux 10
- nodejs24-full-i18n as a component of Red Hat Enterprise Linux 10
- nodejs24-libs as a component of Red Hat Enterprise Linux 10
- nodejs24-npm as a component of Red Hat Enterprise Linux 10
- nodejs24.src as a component of Red Hat Enterprise Linux 10
- nodejs26.src as a component of Red Hat Enterprise Linux 10
- and 83 more
- Fixed
- grafana12.4-0:12.4.10-0.2.hum1@aarch64 as a component of Red Hat Hardened Images
- grafana12.4-0:12.4.10-0.2.hum1@src as a component of Red Hat Hardened Images
- grafana12.4-0:12.4.10-0.2.hum1@x86_64 as a component of Red Hat Hardened Images
- nodejs24-0:24.21.0-1.hum1@aarch64 as a component of Red Hat Hardened Images
- nodejs24-0:24.21.0-1.hum1@src as a component of Red Hat Hardened Images
- nodejs24-0:24.21.0-1.hum1@x86_64 as a component of Red Hat Hardened Images
- nodejs24-bin-0:24.21.0-1.hum1@noarch@public-hummingbird-aarch64-rpms as a component of Red Hat Hardened Images
- nodejs24-bin-0:24.21.0-1.hum1@noarch@public-hummingbird-x86_64-rpms as a component of Red Hat Hardened Images
- nodejs24-devel-0:24.21.0-1.hum1@aarch64 as a component of Red Hat Hardened Images
- nodejs24-devel-0:24.21.0-1.hum1@x86_64 as a component of Red Hat Hardened Images
- nodejs24-docs-0:24.21.0-1.hum1@noarch@public-hummingbird-aarch64-rpms as a component of Red Hat Hardened Images
- nodejs24-docs-0:24.21.0-1.hum1@noarch@public-hummingbird-x86_64-rpms as a component of Red Hat Hardened Images
- nodejs24-full-i18n-0:24.21.0-1.hum1@aarch64 as a component of Red Hat Hardened Images
- nodejs24-full-i18n-0:24.21.0-1.hum1@x86_64 as a component of Red Hat Hardened Images
- nodejs24-libs-0:24.21.0-1.hum1@aarch64 as a component of Red Hat Hardened Images
- nodejs24-libs-0:24.21.0-1.hum1@x86_64 as a component of Red Hat Hardened Images
- nodejs24-npm-0:11.19.0-1.24.21.0.1.hum1@noarch@public-hummingbird-aarch64-rpms as a component of Red Hat Hardened Images
- nodejs24-npm-0:11.19.0-1.24.21.0.1.hum1@noarch@public-hummingbird-x86_64-rpms as a component of Red Hat Hardened Images
- nodejs24-npm-bin-0:11.19.0-1.24.21.0.1.hum1@noarch@public-hummingbird-aarch64-rpms as a component of Red Hat Hardened Images
- nodejs24-npm-bin-0:11.19.0-1.24.21.0.1.hum1@noarch@public-hummingbird-x86_64-rpms as a component of Red Hat Hardened Images
- nodejs26-0:26.8.2-0.1.hum1@aarch64 as a component of Red Hat Hardened Images
- nodejs26-0:26.8.2-0.1.hum1@src as a component of Red Hat Hardened Images
- nodejs26-0:26.8.2-0.1.hum1@x86_64 as a component of Red Hat Hardened Images
- nodejs26-bin-0:26.8.2-0.1.hum1@noarch as a component of Red Hat Hardened Images
- Action
- Use the product-specific evidence above. Patch only products with a verified fixed release, and keep every affected or under-investigation state without a matching fix in the remediation queue.
- Workaround
- A mitigation or workaround reference is available from the source linked below; validate it against the affected product and version.
Official vendor articles1 stored document
Linked articles are downloaded and versioned as source evidence. A CVE mention or approved update relationship does not, by itself, verify a fix for every product branch.
- undici vulnerable to downstream response splitting via retry interceptor · Advisory · nodejs/undici · GitHub →Original publisher ↗Searchable text snapshot · Captured 27 Sep 2026nodejs / undici Public Uh oh! There was an error while loading. Please reload this page . Notifications You must be signed in to change notification settings Fork 889 Star 7.7k Code Issues 188 Pull requests 167 Discussions Actions Projects Security and quality 46 Insights Additional navigation options
04
Evidence and provenance
Published 4 Sept 2026 · Last source change 4 Sept 2026, 17:50 UTC · CWE-444 · Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
CVE recordCVE.org · 5.2
CVSS sourceCNA
EPSS source FIRST · tracked since 2026-09-05
?
The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.European sourceENISA EUVD · EUVD-2026-71661
Product sourceVendor CSAF · Red Hat Product Security
Remediation sourceVendor CSAF · Red Hat Product Security
CWE sourceCNA
NVD statusNVD enriched
Core structured fields are present and their contributing authorities are shown above.
Material change intelligence
View recent updates ↗What changed after publication
- Affected versionsThe structured affected or fixed version information changed.Red Hat Product Security ↗
- Before
- exploit-intelligence/vulnerability-analysis-rhel9 as a component of Exploit Intelligence; openshift-pipelines/pipelines-console-plugin-pf5-rhel9 as a component of OpenShift Pipelines; openshift-pipelines/pipelines-console-plugin-rhel9 as a component of OpenShift Pipelines; amq-broker-bin.zip as a component of Red Hat AMQ Broker 7; amq-broker-maven-repository.zip as a component of Red Hat AMQ Broker 7; automation-platform-ui.src as a component of Red Hat Ansible Automation Platform 2; rh-podman-desktop.git as a component of Red Hat Build of Podman Desktop; rhdh/red-hat-developer-hub-backstage-plugin-lightspeed-backend as a component of Red Hat Developer Hub; rhdh/red-hat-developer-hub-backstage-plugin-orchestrator-backend as a component of Red Hat Developer Hub; rhdh/red-hat-developer-hub-backstage-plugin-orchestrator-backend-module-loki as a component of Red Hat Developer Hub; rhdh/red-hat-developer-hub-backstage-plugin-scaffolder-backend-module-orchestrator as a component of Red Hat Developer Hub; rhdh/rhdh-hub-rhel9 as a component of Red Hat Developer Hub; grafana as a component of Red Hat Enterprise Linux 10; grafana-selinux as a component of Red Hat Enterprise Linux 10; grafana.src as a component of Red Hat Enterprise Linux 10; nodejs as a component of Red Hat Enterprise Linux 10; nodejs-devel as a component of Red Hat Enterprise Linux 10; nodejs-docs as a component of Red Hat Enterprise Linux 10; nodejs-full-i18n as a component of Red Hat Enterprise Linux 10; nodejs-libs as a component of Red Hat Enterprise Linux 10; nodejs-npm as a component of Red Hat Enterprise Linux 10; nodejs22.src as a component of Red Hat Enterprise Linux 10; nodejs24 as a component of Red Hat Enterprise Linux 10; nodejs24-devel as a component of Red Hat Enterprise Linux 10; nodejs24-docs as a component of Red Hat Enterprise Linux 10; nodejs24-full-i18n as a component of Red Hat Enterprise Linux 10; nodejs24-libs as a component of Red Hat Enterprise Linux 10; nodejs24-npm as a component of Red Hat Enterprise Linux 10; nodejs24.src as a component of Red Hat Enterprise Linux 10; nodejs26.src as a component of Red Hat Enterprise Linux 10; and 84 more · Fixed: grafana12-4-main@aarch64 as a component of Red Hat Hardened Images; grafana12-4-main@src as a component of Red Hat Hardened Images; grafana12-4-main@x86_64 as a component of Red Hat Hardened Images; nodejs26-main@aarch64 as a component of Red Hat Hardened Images; nodejs26-main@noarch as a component of Red Hat Hardened Images; nodejs26-main@src as a component of Red Hat Hardened Images; nodejs26-main@x86_64 as a component of Red Hat Hardened Images
- After
- exploit-intelligence/vulnerability-analysis-rhel9 as a component of Exploit Intelligence; openshift-pipelines/pipelines-console-plugin-pf5-rhel9 as a component of OpenShift Pipelines; openshift-pipelines/pipelines-console-plugin-rhel9 as a component of OpenShift Pipelines; amq-broker-bin.zip as a component of Red Hat AMQ Broker 7; amq-broker-maven-repository.zip as a component of Red Hat AMQ Broker 7; automation-platform-ui.src as a component of Red Hat Ansible Automation Platform 2; rh-podman-desktop.git as a component of Red Hat Build of Podman Desktop; rhdh/red-hat-developer-hub-backstage-plugin-lightspeed-backend as a component of Red Hat Developer Hub; rhdh/red-hat-developer-hub-backstage-plugin-orchestrator-backend as a component of Red Hat Developer Hub; rhdh/red-hat-developer-hub-backstage-plugin-orchestrator-backend-module-loki as a component of Red Hat Developer Hub; rhdh/red-hat-developer-hub-backstage-plugin-scaffolder-backend-module-orchestrator as a component of Red Hat Developer Hub; rhdh/rhdh-hub-rhel9 as a component of Red Hat Developer Hub; grafana as a component of Red Hat Enterprise Linux 10; grafana-selinux as a component of Red Hat Enterprise Linux 10; grafana.src as a component of Red Hat Enterprise Linux 10; nodejs as a component of Red Hat Enterprise Linux 10; nodejs-devel as a component of Red Hat Enterprise Linux 10; nodejs-docs as a component of Red Hat Enterprise Linux 10; nodejs-full-i18n as a component of Red Hat Enterprise Linux 10; nodejs-libs as a component of Red Hat Enterprise Linux 10; nodejs-npm as a component of Red Hat Enterprise Linux 10; nodejs22.src as a component of Red Hat Enterprise Linux 10; nodejs24 as a component of Red Hat Enterprise Linux 10; nodejs24-devel as a component of Red Hat Enterprise Linux 10; nodejs24-docs as a component of Red Hat Enterprise Linux 10; nodejs24-full-i18n as a component of Red Hat Enterprise Linux 10; nodejs24-libs as a component of Red Hat Enterprise Linux 10; nodejs24-npm as a component of Red Hat Enterprise Linux 10; nodejs24.src as a component of Red Hat Enterprise Linux 10; nodejs26.src as a component of Red Hat Enterprise Linux 10; and 83 more · Fixed: grafana12.4-0:12.4.10-0.2.hum1@aarch64 as a component of Red Hat Hardened Images; grafana12.4-0:12.4.10-0.2.hum1@src as a component of Red Hat Hardened Images; grafana12.4-0:12.4.10-0.2.hum1@x86_64 as a component of Red Hat Hardened Images; nodejs24-0:24.21.0-1.hum1@aarch64 as a component of Red Hat Hardened Images; nodejs24-0:24.21.0-1.hum1@src as a component of Red Hat Hardened Images; nodejs24-0:24.21.0-1.hum1@x86_64 as a component of Red Hat Hardened Images; nodejs24-bin-0:24.21.0-1.hum1@noarch@public-hummingbird-aarch64-rpms as a component of Red Hat Hardened Images; nodejs24-bin-0:24.21.0-1.hum1@noarch@public-hummingbird-x86_64-rpms as a component of Red Hat Hardened Images; nodejs24-devel-0:24.21.0-1.hum1@aarch64 as a component of Red Hat Hardened Images; nodejs24-devel-0:24.21.0-1.hum1@x86_64 as a component of Red Hat Hardened Images; nodejs24-docs-0:24.21.0-1.hum1@noarch@public-hummingbird-aarch64-rpms as a component of Red Hat Hardened Images; nodejs24-docs-0:24.21.0-1.hum1@noarch@public-hummingbird-x86_64-rpms as a component of Red Hat Hardened Images; nodejs24-full-i18n-0:24.21.0-1.hum1@aarch64 as a component of Red Hat Hardened Images; nodejs24-full-i18n-0:24.21.0-1.hum1@x86_64 as a component of Red Hat Hardened Images; nodejs24-libs-0:24.21.0-1.hum1@aarch64 as a component of Red Hat Hardened Images; nodejs24-libs-0:24.21.0-1.hum1@x86_64 as a component of Red Hat Hardened Images; nodejs24-npm-0:11.19.0-1.24.21.0.1.hum1@noarch@public-hummingbird-aarch64-rpms as a component of Red Hat Hardened Images; nodejs24-npm-0:11.19.0-1.24.21.0.1.hum1@noarch@public-hummingbird-x86_64-rpms as a component of Red Hat Hardened Images; nodejs24-npm-bin-0:11.19.0-1.24.21.0.1.hum1@noarch@public-hummingbird-aarch64-rpms as a component of Red Hat Hardened Images; nodejs24-npm-bin-0:11.19.0-1.24.21.0.1.hum1@noarch@public-hummingbird-x86_64-rpms as a component of Red Hat Hardened Images; nodejs26-0:26.8.2-0.1.hum1@aarch64 as a component of Red Hat Hardened Images; nodejs26-0:26.8.2-0.1.hum1@src as a component of Red Hat Hardened Images; nodejs26-0:26.8.2-0.1.hum1@x86_64 as a component of Red Hat Hardened Images; nodejs26-bin-0:26.8.2-0.1.hum1@noarch as a component of Red Hat Hardened Images
- Affected versionsThe structured affected or fixed version information changed.Red Hat Product Security ↗
- Before
- exploit-intelligence/vulnerability-analysis-rhel9 as a component of Exploit Intelligence; openshift-pipelines/pipelines-console-plugin-pf5-rhel9 as a component of OpenShift Pipelines; openshift-pipelines/pipelines-console-plugin-rhel9 as a component of OpenShift Pipelines; amq-broker-bin.zip as a component of Red Hat AMQ Broker 7; amq-broker-maven-repository.zip as a component of Red Hat AMQ Broker 7; automation-platform-ui.src as a component of Red Hat Ansible Automation Platform 2; rh-podman-desktop.git as a component of Red Hat Build of Podman Desktop; rhdh/red-hat-developer-hub-backstage-plugin-lightspeed-backend as a component of Red Hat Developer Hub; rhdh/red-hat-developer-hub-backstage-plugin-orchestrator-backend as a component of Red Hat Developer Hub; rhdh/red-hat-developer-hub-backstage-plugin-orchestrator-backend-module-loki as a component of Red Hat Developer Hub; rhdh/red-hat-developer-hub-backstage-plugin-scaffolder-backend-module-orchestrator as a component of Red Hat Developer Hub; rhdh/rhdh-hub-rhel9 as a component of Red Hat Developer Hub; grafana as a component of Red Hat Enterprise Linux 10; grafana-selinux as a component of Red Hat Enterprise Linux 10; grafana.src as a component of Red Hat Enterprise Linux 10; nodejs as a component of Red Hat Enterprise Linux 10; nodejs-devel as a component of Red Hat Enterprise Linux 10; nodejs-docs as a component of Red Hat Enterprise Linux 10; nodejs-full-i18n as a component of Red Hat Enterprise Linux 10; nodejs-libs as a component of Red Hat Enterprise Linux 10; nodejs-npm as a component of Red Hat Enterprise Linux 10; nodejs22.src as a component of Red Hat Enterprise Linux 10; nodejs24 as a component of Red Hat Enterprise Linux 10; nodejs24-devel as a component of Red Hat Enterprise Linux 10; nodejs24-docs as a component of Red Hat Enterprise Linux 10; nodejs24-full-i18n as a component of Red Hat Enterprise Linux 10; nodejs24-libs as a component of Red Hat Enterprise Linux 10; nodejs24-npm as a component of Red Hat Enterprise Linux 10; nodejs24.src as a component of Red Hat Enterprise Linux 10; nodejs26.src as a component of Red Hat Enterprise Linux 10; and 85 more · Fixed: grafana12-4-main@aarch64 as a component of Red Hat Hardened Images; grafana12-4-main@src as a component of Red Hat Hardened Images; grafana12-4-main@x86_64 as a component of Red Hat Hardened Images
- After
- exploit-intelligence/vulnerability-analysis-rhel9 as a component of Exploit Intelligence; openshift-pipelines/pipelines-console-plugin-pf5-rhel9 as a component of OpenShift Pipelines; openshift-pipelines/pipelines-console-plugin-rhel9 as a component of OpenShift Pipelines; amq-broker-bin.zip as a component of Red Hat AMQ Broker 7; amq-broker-maven-repository.zip as a component of Red Hat AMQ Broker 7; automation-platform-ui.src as a component of Red Hat Ansible Automation Platform 2; rh-podman-desktop.git as a component of Red Hat Build of Podman Desktop; rhdh/red-hat-developer-hub-backstage-plugin-lightspeed-backend as a component of Red Hat Developer Hub; rhdh/red-hat-developer-hub-backstage-plugin-orchestrator-backend as a component of Red Hat Developer Hub; rhdh/red-hat-developer-hub-backstage-plugin-orchestrator-backend-module-loki as a component of Red Hat Developer Hub; rhdh/red-hat-developer-hub-backstage-plugin-scaffolder-backend-module-orchestrator as a component of Red Hat Developer Hub; rhdh/rhdh-hub-rhel9 as a component of Red Hat Developer Hub; grafana as a component of Red Hat Enterprise Linux 10; grafana-selinux as a component of Red Hat Enterprise Linux 10; grafana.src as a component of Red Hat Enterprise Linux 10; nodejs as a component of Red Hat Enterprise Linux 10; nodejs-devel as a component of Red Hat Enterprise Linux 10; nodejs-docs as a component of Red Hat Enterprise Linux 10; nodejs-full-i18n as a component of Red Hat Enterprise Linux 10; nodejs-libs as a component of Red Hat Enterprise Linux 10; nodejs-npm as a component of Red Hat Enterprise Linux 10; nodejs22.src as a component of Red Hat Enterprise Linux 10; nodejs24 as a component of Red Hat Enterprise Linux 10; nodejs24-devel as a component of Red Hat Enterprise Linux 10; nodejs24-docs as a component of Red Hat Enterprise Linux 10; nodejs24-full-i18n as a component of Red Hat Enterprise Linux 10; nodejs24-libs as a component of Red Hat Enterprise Linux 10; nodejs24-npm as a component of Red Hat Enterprise Linux 10; nodejs24.src as a component of Red Hat Enterprise Linux 10; nodejs26.src as a component of Red Hat Enterprise Linux 10; and 84 more · Fixed: grafana12-4-main@aarch64 as a component of Red Hat Hardened Images; grafana12-4-main@src as a component of Red Hat Hardened Images; grafana12-4-main@x86_64 as a component of Red Hat Hardened Images; nodejs26-main@aarch64 as a component of Red Hat Hardened Images; nodejs26-main@noarch as a component of Red Hat Hardened Images; nodejs26-main@src as a component of Red Hat Hardened Images; nodejs26-main@x86_64 as a component of Red Hat Hardened Images
- Vendor guidanceAuthoritative vendor guidance changed from remediation: access.redhat.com/CVE-2026-18540 to remediation: access.redhat.com/CVE-2026-18540.Red Hat Product Security ↗
- Before
- remediation: access.redhat.com/CVE-2026-18540
- After
- remediation: access.redhat.com/CVE-2026-18540
- Remediation statusRemediation status changed from Awaiting fix to Patch available.Red Hat Product Security ↗
- Before
- Awaiting fix
- After
- Patch available
- Affected versionsThe structured affected or fixed version information changed.Red Hat Product Security ↗
- Before
- exploit-intelligence/vulnerability-analysis-rhel9 as a component of Exploit Intelligence; openshift-pipelines/pipelines-console-plugin-pf5-rhel9 as a component of OpenShift Pipelines; openshift-pipelines/pipelines-console-plugin-rhel9 as a component of OpenShift Pipelines; amq-broker-bin.zip as a component of Red Hat AMQ Broker 7; amq-broker-maven-repository.zip as a component of Red Hat AMQ Broker 7; automation-platform-ui.src as a component of Red Hat Ansible Automation Platform 2; rh-podman-desktop.git as a component of Red Hat Build of Podman Desktop; rhdh/red-hat-developer-hub-backstage-plugin-lightspeed-backend as a component of Red Hat Developer Hub; rhdh/red-hat-developer-hub-backstage-plugin-orchestrator-backend as a component of Red Hat Developer Hub; rhdh/red-hat-developer-hub-backstage-plugin-orchestrator-backend-module-loki as a component of Red Hat Developer Hub; rhdh/red-hat-developer-hub-backstage-plugin-scaffolder-backend-module-orchestrator as a component of Red Hat Developer Hub; rhdh/rhdh-hub-rhel9 as a component of Red Hat Developer Hub; grafana as a component of Red Hat Enterprise Linux 10; grafana-selinux as a component of Red Hat Enterprise Linux 10; grafana.src as a component of Red Hat Enterprise Linux 10; nodejs as a component of Red Hat Enterprise Linux 10; nodejs-devel as a component of Red Hat Enterprise Linux 10; nodejs-docs as a component of Red Hat Enterprise Linux 10; nodejs-full-i18n as a component of Red Hat Enterprise Linux 10; nodejs-libs as a component of Red Hat Enterprise Linux 10; nodejs-npm as a component of Red Hat Enterprise Linux 10; nodejs22.src as a component of Red Hat Enterprise Linux 10; nodejs24 as a component of Red Hat Enterprise Linux 10; nodejs24-devel as a component of Red Hat Enterprise Linux 10; nodejs24-docs as a component of Red Hat Enterprise Linux 10; nodejs24-full-i18n as a component of Red Hat Enterprise Linux 10; nodejs24-libs as a component of Red Hat Enterprise Linux 10; nodejs24-npm as a component of Red Hat Enterprise Linux 10; nodejs24.src as a component of Red Hat Enterprise Linux 10; nodejs26.src as a component of Red Hat Enterprise Linux 10; and 86 more
- After
- exploit-intelligence/vulnerability-analysis-rhel9 as a component of Exploit Intelligence; openshift-pipelines/pipelines-console-plugin-pf5-rhel9 as a component of OpenShift Pipelines; openshift-pipelines/pipelines-console-plugin-rhel9 as a component of OpenShift Pipelines; amq-broker-bin.zip as a component of Red Hat AMQ Broker 7; amq-broker-maven-repository.zip as a component of Red Hat AMQ Broker 7; automation-platform-ui.src as a component of Red Hat Ansible Automation Platform 2; rh-podman-desktop.git as a component of Red Hat Build of Podman Desktop; rhdh/red-hat-developer-hub-backstage-plugin-lightspeed-backend as a component of Red Hat Developer Hub; rhdh/red-hat-developer-hub-backstage-plugin-orchestrator-backend as a component of Red Hat Developer Hub; rhdh/red-hat-developer-hub-backstage-plugin-orchestrator-backend-module-loki as a component of Red Hat Developer Hub; rhdh/red-hat-developer-hub-backstage-plugin-scaffolder-backend-module-orchestrator as a component of Red Hat Developer Hub; rhdh/rhdh-hub-rhel9 as a component of Red Hat Developer Hub; grafana as a component of Red Hat Enterprise Linux 10; grafana-selinux as a component of Red Hat Enterprise Linux 10; grafana.src as a component of Red Hat Enterprise Linux 10; nodejs as a component of Red Hat Enterprise Linux 10; nodejs-devel as a component of Red Hat Enterprise Linux 10; nodejs-docs as a component of Red Hat Enterprise Linux 10; nodejs-full-i18n as a component of Red Hat Enterprise Linux 10; nodejs-libs as a component of Red Hat Enterprise Linux 10; nodejs-npm as a component of Red Hat Enterprise Linux 10; nodejs22.src as a component of Red Hat Enterprise Linux 10; nodejs24 as a component of Red Hat Enterprise Linux 10; nodejs24-devel as a component of Red Hat Enterprise Linux 10; nodejs24-docs as a component of Red Hat Enterprise Linux 10; nodejs24-full-i18n as a component of Red Hat Enterprise Linux 10; nodejs24-libs as a component of Red Hat Enterprise Linux 10; nodejs24-npm as a component of Red Hat Enterprise Linux 10; nodejs24.src as a component of Red Hat Enterprise Linux 10; nodejs26.src as a component of Red Hat Enterprise Linux 10; and 85 more · Fixed: grafana12-4-main@aarch64 as a component of Red Hat Hardened Images; grafana12-4-main@src as a component of Red Hat Hardened Images; grafana12-4-main@x86_64 as a component of Red Hat Hardened Images
- ENISA EUVD mappingEUVD-2026-71661 was added to the official ENISA EUVD mapping for this CVE.ENISA EUVD ↗
- Before
- not recorded
- After
- {"euvdId":"EUVD-2026-71661"}
- Vendor guidanceAuthoritative vendor guidance changed: added mitigation: github.com/GHSA-r53p-7pc4-xj5r; added vendor advisory: cna.openjsf.org/security-advisories.html.github.com ↗
- Before
- remediation: github.com/GHSA-r53p-7pc4-xj5r
- After
- mitigation: github.com/GHSA-r53p-7pc4-xj5r · remediation: github.com/GHSA-r53p-7pc4-xj5r · vendor advisory: cna.openjsf.org/security-advisories.html
- Affected versionsThe structured affected or fixed version information changed.CNA ↗
- Before
- < 6.28.1; 7.0.0 < 7.29.1; 8.0.0 < 8.10.2 · Fixed: 6.28.1; 7.29.1; 8.10.2
- After
- undici: < 6.28.1, 7.0.0 < 7.29.1, 8.0.0 < 8.10.2 · Fixed: undici: 6.28.1, 7.29.1, 8.10.2
- Catalogue recordCVE added to the BlackTree catalogue.CNA ↗
CVE published
Fixed release or patch reference recorded
Technical terms and abbreviations used in this report
- CVE
- Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
- CVSS
- Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
- EPSS
- Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
- CWE
- Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
- CNA
- CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
- CISA ADP
- Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
- NVD
- National Vulnerability Database: NIST's enrichment service for CVE records.
- CERT / CSIRT
- A computer security incident response team that publishes warnings or coordinates incident response.
- PoC
- Proof of concept: public material that demonstrates or helps reproduce exploitation.
- CSAF
- Common Security Advisory Framework: a machine-readable format for security advisories.
- LoTL
- Living off the land: abuse of legitimate tools or system functions during an attack.