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Full vulnerability report · 2026
CVE-2026-123863High confidence

Node.js is vulnerable to a remote HTTP/2 denial of service via a reachable assertion in Http2Session teardown

nodejs · node

8.2HighCVSS 3.0
Recommended action
Within 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityHighOperational priority:High, unchanged from published severity.unchanged

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 0.46% for the current model date.

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

  1. Confirm that the asset runs nodejs node and falls inside the recorded affected range.
  2. Verify the installed build against the product-specific fixed version after deployment.
  3. Validate exposure, authentication requirements and compensating controls in the actual environment.
  4. Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Mitigation target: Within 30 daysRemediation target: Within 180 days

This automated reassessment organises public evidence. It does not know asset exposure, business impact or control effectiveness and does not replace CVSS or a human risk decision.

Direct vendor intelligence

Authoritative 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.

1 current
CVE-2026-123863 · CSAF 2.0 · revision 3 · finalRed Hat Product Securitynodejs: Node.js: Denial of Service via improper HTTP/2 session teardown
30 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • nodejs24.src as a component of Red Hat Enterprise Linux 10
  • nodejs26.src as a component of Red Hat Enterprise Linux 10
  • nodejs-devel (nodejs:24) as a component of Red Hat Enterprise Linux 8
  • nodejs-docs (nodejs:24) as a component of Red Hat Enterprise Linux 8
  • nodejs-full-i18n (nodejs:24) as a component of Red Hat Enterprise Linux 8
  • nodejs-libs (nodejs:24) as a component of Red Hat Enterprise Linux 8
  • nodejs-nodemon.src (nodejs:24) as a component of Red Hat Enterprise Linux 8
  • nodejs-nodemon (nodejs:24) as a component of Red Hat Enterprise Linux 8
  • nodejs-packaging-bundler (nodejs:24) as a component of Red Hat Enterprise Linux 8
  • nodejs-packaging.src (nodejs:24) as a component of Red Hat Enterprise Linux 8
  • nodejs-packaging (nodejs:24) as a component of Red Hat Enterprise Linux 8
  • nodejs.src (nodejs:24) as a component of Red Hat Enterprise Linux 8
Summary
A flaw was found in Node.js. An unauthenticated remote attacker can cause a Denial of Service (DoS) by triggering an abnormal server crash during HTTP/2 session termination. By sending a request where the server responds before the request body has finished transmitting, an individual stream can outlive its parent session while retaining allocated memory. This inconsistency triggers an internal check failure during session cleanup, immediately terminating the server process.
Remediation
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://images.redhat.com/
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Choose official national sources for this report. Each advisory shows its original language. Your selection is remembered on this device and included in shared links.

Recommended actionWithin 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available
01

What, why and how

A reachable assertion in Node.js HTTP/2 session teardown lets any unauthenticated client abort the server, over both TLS and cleartext. A client can arrange for an Http2Stream that still holds nghttp2-allocated header buffers to outlive its session: the stream is removed from the session's stream set but never detached, so when ~Http2Session() runs the memory accounting is nonzero and the CHECK_EQ(current_nghttp2_memory_, 0) assertion fails, terminating the process. The trigger needs only a default http2 server whose handler responds before the request body has ended, which is typical. It is a variant of CVE-2024-27983 that the earlier fix did not cover, because that fix only detached streams still tracked in the session. This vulnerability affects Node.js 26.x (since 26.9.0) and 24.x (since 24.22.0).

What

A reachable assertion in Node.js HTTP/2 session teardown lets any unauthenticated client abort the server, over both TLS and cleartext. A client can arrange for an Http2Stream that still holds nghttp2-allocated header buffers to outlive its session: the stream is removed from the session's stream set but never detached, so when ~Http2Session() runs the memory accounting is nonzero and the CHECK_EQ(current_nghttp2_memory_, 0) assertion fails, terminating the process. The trigger needs only a default http2 server whose handler responds before the request body has ended, which is typical. It is a variant of CVE-2024-27983 that the earlier fix did not cover, because that fix only detached streams still tracked in the session. This vulnerability affects Node.js 26.x (since 26.9.0) and 24.x (since 24.22.0).

Why

The product contains an assert() or similar statement that can be triggered by an attacker, which leads to an application exit or other behavior that is more severe than necessary.

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

A reachable assertion in Node.js HTTP/2 session teardown lets any unauthenticated client abort the server, over both TLS and cleartext. A client can arrange for an Http2Stream that still holds nghttp2-allocated header buffers to outlive its session: the stream is removed from the session's stream set but never detached, so when ~Http2Session() runs the memory accounting is nonzero and the CHECK_EQ(current_nghttp2_memory_, 0) assertion fails, terminating the process. The trigger needs only a default http2 server whose handler responds before the request body has ended, which is typical. It is a variant of CVE-2024-27983 that the earlier fix did not cover, because that fix only detached streams still tracked in the session. This vulnerability affects Node.js 26.x (since 26.9.0) and 24.x (since 24.22.0).

Why

The product contains an assert() or similar statement that can be triggered by an attacker, which leads to an application exit or other behavior that is more severe than necessary.

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
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

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
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

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 → Reachable Assertion → 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
Low: no specialised conditions are recorded
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-617 ↗

CWE-617: Reachable Assertion. The product contains an assert() or similar statement that can be triggered by an attacker, which leads to an application exit or other behavior that is more severe than necessary.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

Common Vulnerability Scoring System 3.0: the compact vector below is decoded into plain language.

AVNetworkAttack vector: The vulnerable component can be reached over a network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.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.AHighAvailability impact: A successful attack can cause a major loss.
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.
NetworkUnauthenticatedCWE-617
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

BSI · German · WID-SEC-2026-4525Node.js: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Node.js ausnutzen, um einen Denial of Service Angriff durchzuführen, um Informationen offenzulegen, um Daten zu manipulieren und um Sicherheitsvorkehrungen zu umgehen.

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1531Avis du CERT-FR

De multiples vulnérabilités ont été découvertes dans Node.js. Certaines d'entre elles permettent à un attaquant de provoquer une atteinte à la confidentialité des données, un contournement de la politique de sécurité et un déni de service.

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1539Avis du CERT-FR

13657 Référence CVE CVE-2026-113661 https://www.cve.org/CVERecord?id=CVE-2026-113661 Référence CVE CVE-2026-113872 https://www.cve.org/CVERecord?id=CVE-2026-113872 Référence CVE CVE-2026-114111 https://www.cve.org/CVERecord?id=CVE-2026-114111 Référence CVE CVE-2026-11547 https://www.cve.org/CVERecord?id=CVE-2026-11547 Référence CVE CVE-2026-116590 https://www.cve.org/CVERecord?id=CVE-2026-116590 Référence CVE CVE-2026-123828 https://www.cve.org/CVERecord?id=CVE-2026-123828 Référence CVE CVE-2026-123829 https://www.cve.org/CVERecord?id=CVE-2026-123829 Référence CVE CVE-2026-123862 https://www.cve.org/CVERecord?id=CVE-2026-123862 Référence CVE CVE-2026-123863 https://www.cve.org/CVERecord?id=CVE-2026-123863 Référence CVE CVE-2026-123864 https://www.cve.org/CVERecord?id=CVE-2026-123864 Référence CVE CVE-2026-123865 https://www.cve.org/CVERecord?id=CVE-2026-123865 Référence CVE CVE-2026-123866 https://www.cve.org/CVERecord?id=CVE-2026-123866 Référence CVE CVE-2026-123867 https://www.cve.org/CVERecord?id=CVE-2026-123867 Référence CVE CVE-2026-123868 https://www.cve.org/CVERecord?id=CVE-2026-123868 Référence CVE CVE-2026-123871 https://www.cve.org/CVERecord?id=CVE-2026-123871 Référence CVE CVE-2026-123872 https://www.cve.org/CVERecord?id=CVE-2026-123872 Référence CVE CVE-2026-123874 https://www.cve.o

Official advisory ↗
KISA KrCERT/CC · Korean · KNVD-7071Node.js 제품 보안 업데이트 권고

Node.js에서 발생하는 Reachable Assertion 취약점(CVE-2026-123863) [1][4]

Official advisory ↗
NCSC-NL · Dutch · NCSC-2026-0492Kwetsbaarheden verholpen in Node.js

A critical vulnerability in Node.js HTTP/2 session teardown allows unauthenticated remote attackers to cause a denial of service by triggering a memory assertion failure and server crash during session cleanup in versions 26.x and 24.x.

Official advisory ↗
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.
Patch available
Affected
Fixed
Action
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://images.redhat.com/
Workaround
No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04

Evidence and provenance

Published 11 Nov 2026 · Last source change 11 Nov 2026, 18:16 UTC · CWE-617 · Reachable Assertion

CVE recordCVE.org · 5.2
CVSS sourceCNA
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-11-12
European sourceNo official EUVD mapping
Product sourceVendor CSAF · Red Hat Product Security
Remediation sourceVendor CSAF · Red Hat Product Security
CWE sourceCNA
NVD statusNVD awaiting enrichment

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates ↗
  1. Affected versionsThe structured affected or fixed version information changed.
    Before
    nodejs24.src as a component of Red Hat Enterprise Linux 10; nodejs26.src as a component of Red Hat Enterprise Linux 10; nodejs-devel (nodejs:24) as a component of Red Hat Enterprise Linux 8; nodejs-docs (nodejs:24) as a component of Red Hat Enterprise Linux 8; nodejs-full-i18n (nodejs:24) as a component of Red Hat Enterprise Linux 8; nodejs-libs (nodejs:24) as a component of Red Hat Enterprise Linux 8; nodejs-nodemon.src (nodejs:24) as a component of Red Hat Enterprise Linux 8; nodejs-nodemon (nodejs:24) as a component of Red Hat Enterprise Linux 8; nodejs-packaging-bundler (nodejs:24) as a component of Red Hat Enterprise Linux 8; nodejs-packaging.src (nodejs:24) as a component of Red Hat Enterprise Linux 8; nodejs-packaging (nodejs:24) as a component of Red Hat Enterprise Linux 8; nodejs.src (nodejs:24) as a component of Red Hat Enterprise Linux 8; nodejs (nodejs:24) as a component of Red Hat Enterprise Linux 8; npm (nodejs:24) as a component of Red Hat Enterprise Linux 8; v8-12.4-devel (nodejs:24) as a component of Red Hat Enterprise Linux 8; v8-13.6-devel (nodejs:24) as a component of Red Hat Enterprise Linux 8; nodejs-docs (nodejs:24) as a component of Red Hat Enterprise Linux 9; nodejs-docs (nodejs:26) as a component of Red Hat Enterprise Linux 9; nodejs-full-i18n (nodejs:24) as a component of Red Hat Enterprise Linux 9; nodejs-full-i18n (nodejs:26) as a component of Red Hat Enterprise Linux 9; nodejs-libs (nodejs:24) as a component of Red Hat Enterprise Linux 9; nodejs-libs (nodejs:26) as a component of Red Hat Enterprise Linux 9; nodejs.src (nodejs:24) as a component of Red Hat Enterprise Linux 9; nodejs.src (nodejs:26) as a component of Red Hat Enterprise Linux 9; nodejs (nodejs:24) as a component of Red Hat Enterprise Linux 9; nodejs (nodejs:26) as a component of Red Hat Enterprise Linux 9; npm (nodejs:24) as a component of Red Hat Enterprise Linux 9; npm (nodejs:26) as a component of Red Hat Enterprise Linux 9; nodejs20.src as a component of Red Hat Hardened Images; nodejs24.src as a component of Red Hat Hardened Images; and 2 more · Fixed: nodejs22-1:22.23.4-2.3.2.3.1.hum1@aarch64 as a component of Red Hat Hardened Images; nodejs22-1:22.23.4-2.3.2.3.1.hum1@s390x as a component of Red Hat Hardened Images; nodejs22-1:22.23.4-2.3.2.3.1.hum1@src as a component of Red Hat Hardened Images; nodejs22-1:22.23.4-2.3.2.3.1.hum1@x86_64 as a component of Red Hat Hardened Images; nodejs22-bin-1:22.23.4-2.3.2.3.1.hum1@noarch@public-hummingbird-aarch64-rpms as a component of Red Hat Hardened Images; nodejs22-bin-1:22.23.4-2.3.2.3.1.hum1@noarch@public-hummingbird-s390x-rpms as a component of Red Hat Hardened Images; nodejs22-bin-1:22.23.4-2.3.2.3.1.hum1@noarch@public-hummingbird-x86_64-rpms as a component of Red Hat Hardened Images; nodejs22-devel-1:22.23.4-2.3.2.3.1.hum1@aarch64 as a component of Red Hat Hardened Images; nodejs22-devel-1:22.23.4-2.3.2.3.1.hum1@s390x as a component of Red Hat Hardened Images; nodejs22-devel-1:22.23.4-2.3.2.3.1.hum1@x86_64 as a component of Red Hat Hardened Images; nodejs22-docs-1:22.23.4-2.3.2.3.1.hum1@noarch@public-hummingbird-aarch64-rpms as a component of Red Hat Hardened Images; nodejs22-docs-1:22.23.4-2.3.2.3.1.hum1@noarch@public-hummingbird-s390x-rpms as a component of Red Hat Hardened Images; nodejs22-docs-1:22.23.4-2.3.2.3.1.hum1@noarch@public-hummingbird-x86_64-rpms as a component of Red Hat Hardened Images; nodejs22-full-i18n-1:22.23.4-2.3.2.3.1.hum1@aarch64 as a component of Red Hat Hardened Images; nodejs22-full-i18n-1:22.23.4-2.3.2.3.1.hum1@s390x as a component of Red Hat Hardened Images; nodejs22-full-i18n-1:22.23.4-2.3.2.3.1.hum1@x86_64 as a component of Red Hat Hardened Images; nodejs22-libs-1:22.23.4-2.3.2.3.1.hum1@aarch64 as a component of Red Hat Hardened Images; nodejs22-libs-1:22.23.4-2.3.2.3.1.hum1@s390x as a component of Red Hat Hardened Images; nodejs22-libs-1:22.23.4-2.3.2.3.1.hum1@x86_64 as a component of Red Hat Hardened Images; nodejs22-npm-1:10.9.9-1.22.23.4.2.3.2.3.1.hum1@noarch@public-hummingbird-aarch64-rpms as a component of Red Hat Hardened Images; nodejs22-npm-1:10.9.9-1.22.23.4.2.3.2.3.1.hum1@noarch@public-hummingbird-s390x-rpms as a component of Red Hat Hardened Images; nodejs22-npm-1:10.9.9-1.22.23.4.2.3.2.3.1.hum1@noarch@public-hummingbird-x86_64-rpms as a component of Red Hat Hardened Images; nodejs22-npm-bin-1:22.23.4-2.3.2.3.1.hum1@noarch@public-hummingbird-aarch64-rpms as a component of Red Hat Hardened Images; nodejs22-npm-bin-1:22.23.4-2.3.2.3.1.hum1@noarch@public-hummingbird-s390x-rpms as a component of Red Hat Hardened Images; nodejs22-npm-bin-1:22.23.4-2.3.2.3.1.hum1@noarch@public-hummingbird-x86_64-rpms as a component of Red Hat Hardened Images
    After
    nodejs24.src as a component of Red Hat Enterprise Linux 10; nodejs26.src as a component of Red Hat Enterprise Linux 10; nodejs-devel (nodejs:24) as a component of Red Hat Enterprise Linux 8; nodejs-docs (nodejs:24) as a component of Red Hat Enterprise Linux 8; nodejs-full-i18n (nodejs:24) as a component of Red Hat Enterprise Linux 8; nodejs-libs (nodejs:24) as a component of Red Hat Enterprise Linux 8; nodejs-nodemon.src (nodejs:24) as a component of Red Hat Enterprise Linux 8; nodejs-nodemon (nodejs:24) as a component of Red Hat Enterprise Linux 8; nodejs-packaging-bundler (nodejs:24) as a component of Red Hat Enterprise Linux 8; nodejs-packaging.src (nodejs:24) as a component of Red Hat Enterprise Linux 8; nodejs-packaging (nodejs:24) as a component of Red Hat Enterprise Linux 8; nodejs.src (nodejs:24) as a component of Red Hat Enterprise Linux 8; nodejs (nodejs:24) as a component of Red Hat Enterprise Linux 8; npm (nodejs:24) as a component of Red Hat Enterprise Linux 8; v8-12.4-devel (nodejs:24) as a component of Red Hat Enterprise Linux 8; v8-13.6-devel (nodejs:24) as a component of Red Hat Enterprise Linux 8; nodejs-docs (nodejs:24) as a component of Red Hat Enterprise Linux 9; nodejs-docs (nodejs:26) as a component of Red Hat Enterprise Linux 9; nodejs-full-i18n (nodejs:24) as a component of Red Hat Enterprise Linux 9; nodejs-full-i18n (nodejs:26) as a component of Red Hat Enterprise Linux 9; nodejs-libs (nodejs:24) as a component of Red Hat Enterprise Linux 9; nodejs-libs (nodejs:26) as a component of Red Hat Enterprise Linux 9; nodejs.src (nodejs:24) as a component of Red Hat Enterprise Linux 9; nodejs.src (nodejs:26) as a component of Red Hat Enterprise Linux 9; nodejs (nodejs:24) as a component of Red Hat Enterprise Linux 9; nodejs (nodejs:26) as a component of Red Hat Enterprise Linux 9; npm (nodejs:24) as a component of Red Hat Enterprise Linux 9; npm (nodejs:26) as a component of Red Hat Enterprise Linux 9; nodejs20.src as a component of Red Hat Hardened Images; nodejs25.src as a component of Red Hat Hardened Images · Fixed: nodejs22-1:22.23.4-2.3.2.3.1.hum1@aarch64 as a component of Red Hat Hardened Images; nodejs22-1:22.23.4-2.3.2.3.1.hum1@s390x as a component of Red Hat Hardened Images; nodejs22-1:22.23.4-2.3.2.3.1.hum1@src as a component of Red Hat Hardened Images; nodejs22-1:22.23.4-2.3.2.3.1.hum1@x86_64 as a component of Red Hat Hardened Images; nodejs22-bin-1:22.23.4-2.3.2.3.1.hum1@noarch@public-hummingbird-aarch64-rpms as a component of Red Hat Hardened Images; nodejs22-bin-1:22.23.4-2.3.2.3.1.hum1@noarch@public-hummingbird-s390x-rpms as a component of Red Hat Hardened Images; nodejs22-bin-1:22.23.4-2.3.2.3.1.hum1@noarch@public-hummingbird-x86_64-rpms as a component of Red Hat Hardened Images; nodejs22-devel-1:22.23.4-2.3.2.3.1.hum1@aarch64 as a component of Red Hat Hardened Images; nodejs22-devel-1:22.23.4-2.3.2.3.1.hum1@s390x as a component of Red Hat Hardened Images; nodejs22-devel-1:22.23.4-2.3.2.3.1.hum1@x86_64 as a component of Red Hat Hardened Images; nodejs22-docs-1:22.23.4-2.3.2.3.1.hum1@noarch@public-hummingbird-aarch64-rpms as a component of Red Hat Hardened Images; nodejs22-docs-1:22.23.4-2.3.2.3.1.hum1@noarch@public-hummingbird-s390x-rpms as a component of Red Hat Hardened Images; nodejs22-docs-1:22.23.4-2.3.2.3.1.hum1@noarch@public-hummingbird-x86_64-rpms as a component of Red Hat Hardened Images; nodejs22-full-i18n-1:22.23.4-2.3.2.3.1.hum1@aarch64 as a component of Red Hat Hardened Images; nodejs22-full-i18n-1:22.23.4-2.3.2.3.1.hum1@s390x as a component of Red Hat Hardened Images; nodejs22-full-i18n-1:22.23.4-2.3.2.3.1.hum1@x86_64 as a component of Red Hat Hardened Images; nodejs22-libs-1:22.23.4-2.3.2.3.1.hum1@aarch64 as a component of Red Hat Hardened Images; nodejs22-libs-1:22.23.4-2.3.2.3.1.hum1@s390x as a component of Red Hat Hardened Images; nodejs22-libs-1:22.23.4-2.3.2.3.1.hum1@x86_64 as a component of Red Hat Hardened Images; nodejs22-npm-1:10.9.9-1.22.23.4.2.3.2.3.1.hum1@noarch@public-hummingbird-aarch64-rpms as a component of Red Hat Hardened Images; nodejs22-npm-1:10.9.9-1.22.23.4.2.3.2.3.1.hum1@noarch@public-hummingbird-s390x-rpms as a component of Red Hat Hardened Images; nodejs22-npm-1:10.9.9-1.22.23.4.2.3.2.3.1.hum1@noarch@public-hummingbird-x86_64-rpms as a component of Red Hat Hardened Images; nodejs22-npm-bin-1:22.23.4-2.3.2.3.1.hum1@noarch@public-hummingbird-aarch64-rpms as a component of Red Hat Hardened Images; nodejs22-npm-bin-1:22.23.4-2.3.2.3.1.hum1@noarch@public-hummingbird-s390x-rpms as a component of Red Hat Hardened Images; nodejs22-npm-bin-1:22.23.4-2.3.2.3.1.hum1@noarch@public-hummingbird-x86_64-rpms as a component of Red Hat Hardened Images; nodejs24-1:24.22.3-0.1.hum1@aarch64 as a component of Red Hat Hardened Images; nodejs24-1:24.22.3-0.1.hum1@s390x as a component of Red Hat Hardened Images; nodejs24-1:24.22.3-0.1.hum1@src as a component of Red Hat Hardened Images; nodejs24-1:24.22.3-0.1.hum1@x86_64 as a component of Red Hat Hardened Images; nodejs24-bin-1:24.22.3-0.1.hum1@noarch@public-hummingbird-aarch64-rpms as a component of Red Hat Hardened Images; and 45 more
    Red Hat Product Security ↗
  2. Vendor guidanceAuthoritative vendor guidance changed from remediation: access.redhat.com/CVE-2026-123863 to remediation: access.redhat.com/CVE-2026-123863.
    Before
    remediation: access.redhat.com/CVE-2026-123863
    After
    remediation: access.redhat.com/CVE-2026-123863
    Red Hat Product Security ↗
  3. Remediation statusRemediation status changed from Mitigation available to Patch available.
    Before
    Mitigation available
    After
    Patch available
    Red Hat Product Security ↗
  4. Affected versionsThe structured affected or fixed version information changed.
    Before
    nodejs24.src as a component of Red Hat Enterprise Linux 10; nodejs26.src as a component of Red Hat Enterprise Linux 10; nodejs-devel (nodejs:24) as a component of Red Hat Enterprise Linux 8; nodejs-docs (nodejs:24) as a component of Red Hat Enterprise Linux 8; nodejs-full-i18n (nodejs:24) as a component of Red Hat Enterprise Linux 8; nodejs-libs (nodejs:24) as a component of Red Hat Enterprise Linux 8; nodejs-nodemon.src (nodejs:24) as a component of Red Hat Enterprise Linux 8; nodejs-nodemon (nodejs:24) as a component of Red Hat Enterprise Linux 8; nodejs-packaging-bundler (nodejs:24) as a component of Red Hat Enterprise Linux 8; nodejs-packaging.src (nodejs:24) as a component of Red Hat Enterprise Linux 8; nodejs-packaging (nodejs:24) as a component of Red Hat Enterprise Linux 8; nodejs.src (nodejs:24) as a component of Red Hat Enterprise Linux 8; nodejs (nodejs:24) as a component of Red Hat Enterprise Linux 8; npm (nodejs:24) as a component of Red Hat Enterprise Linux 8; v8-12.4-devel (nodejs:24) as a component of Red Hat Enterprise Linux 8; v8-13.6-devel (nodejs:24) as a component of Red Hat Enterprise Linux 8; nodejs-docs (nodejs:24) as a component of Red Hat Enterprise Linux 9; nodejs-docs (nodejs:26) as a component of Red Hat Enterprise Linux 9; nodejs-full-i18n (nodejs:24) as a component of Red Hat Enterprise Linux 9; nodejs-full-i18n (nodejs:26) as a component of Red Hat Enterprise Linux 9; nodejs-libs (nodejs:24) as a component of Red Hat Enterprise Linux 9; nodejs-libs (nodejs:26) as a component of Red Hat Enterprise Linux 9; nodejs.src (nodejs:24) as a component of Red Hat Enterprise Linux 9; nodejs.src (nodejs:26) as a component of Red Hat Enterprise Linux 9; nodejs (nodejs:24) as a component of Red Hat Enterprise Linux 9; nodejs (nodejs:26) as a component of Red Hat Enterprise Linux 9; npm (nodejs:24) as a component of Red Hat Enterprise Linux 9; npm (nodejs:26) as a component of Red Hat Enterprise Linux 9; nodejs20.src as a component of Red Hat Hardened Images; nodejs22.src as a component of Red Hat Hardened Images; and 3 more
    After
    nodejs24.src as a component of Red Hat Enterprise Linux 10; nodejs26.src as a component of Red Hat Enterprise Linux 10; nodejs-devel (nodejs:24) as a component of Red Hat Enterprise Linux 8; nodejs-docs (nodejs:24) as a component of Red Hat Enterprise Linux 8; nodejs-full-i18n (nodejs:24) as a component of Red Hat Enterprise Linux 8; nodejs-libs (nodejs:24) as a component of Red Hat Enterprise Linux 8; nodejs-nodemon.src (nodejs:24) as a component of Red Hat Enterprise Linux 8; nodejs-nodemon (nodejs:24) as a component of Red Hat Enterprise Linux 8; nodejs-packaging-bundler (nodejs:24) as a component of Red Hat Enterprise Linux 8; nodejs-packaging.src (nodejs:24) as a component of Red Hat Enterprise Linux 8; nodejs-packaging (nodejs:24) as a component of Red Hat Enterprise Linux 8; nodejs.src (nodejs:24) as a component of Red Hat Enterprise Linux 8; nodejs (nodejs:24) as a component of Red Hat Enterprise Linux 8; npm (nodejs:24) as a component of Red Hat Enterprise Linux 8; v8-12.4-devel (nodejs:24) as a component of Red Hat Enterprise Linux 8; v8-13.6-devel (nodejs:24) as a component of Red Hat Enterprise Linux 8; nodejs-docs (nodejs:24) as a component of Red Hat Enterprise Linux 9; nodejs-docs (nodejs:26) as a component of Red Hat Enterprise Linux 9; nodejs-full-i18n (nodejs:24) as a component of Red Hat Enterprise Linux 9; nodejs-full-i18n (nodejs:26) as a component of Red Hat Enterprise Linux 9; nodejs-libs (nodejs:24) as a component of Red Hat Enterprise Linux 9; nodejs-libs (nodejs:26) as a component of Red Hat Enterprise Linux 9; nodejs.src (nodejs:24) as a component of Red Hat Enterprise Linux 9; nodejs.src (nodejs:26) as a component of Red Hat Enterprise Linux 9; nodejs (nodejs:24) as a component of Red Hat Enterprise Linux 9; nodejs (nodejs:26) as a component of Red Hat Enterprise Linux 9; npm (nodejs:24) as a component of Red Hat Enterprise Linux 9; npm (nodejs:26) as a component of Red Hat Enterprise Linux 9; nodejs20.src as a component of Red Hat Hardened Images; nodejs24.src as a component of Red Hat Hardened Images; and 2 more · Fixed: nodejs22-1:22.23.4-2.3.2.3.1.hum1@aarch64 as a component of Red Hat Hardened Images; nodejs22-1:22.23.4-2.3.2.3.1.hum1@s390x as a component of Red Hat Hardened Images; nodejs22-1:22.23.4-2.3.2.3.1.hum1@src as a component of Red Hat Hardened Images; nodejs22-1:22.23.4-2.3.2.3.1.hum1@x86_64 as a component of Red Hat Hardened Images; nodejs22-bin-1:22.23.4-2.3.2.3.1.hum1@noarch@public-hummingbird-aarch64-rpms as a component of Red Hat Hardened Images; nodejs22-bin-1:22.23.4-2.3.2.3.1.hum1@noarch@public-hummingbird-s390x-rpms as a component of Red Hat Hardened Images; nodejs22-bin-1:22.23.4-2.3.2.3.1.hum1@noarch@public-hummingbird-x86_64-rpms as a component of Red Hat Hardened Images; nodejs22-devel-1:22.23.4-2.3.2.3.1.hum1@aarch64 as a component of Red Hat Hardened Images; nodejs22-devel-1:22.23.4-2.3.2.3.1.hum1@s390x as a component of Red Hat Hardened Images; nodejs22-devel-1:22.23.4-2.3.2.3.1.hum1@x86_64 as a component of Red Hat Hardened Images; nodejs22-docs-1:22.23.4-2.3.2.3.1.hum1@noarch@public-hummingbird-aarch64-rpms as a component of Red Hat Hardened Images; nodejs22-docs-1:22.23.4-2.3.2.3.1.hum1@noarch@public-hummingbird-s390x-rpms as a component of Red Hat Hardened Images; nodejs22-docs-1:22.23.4-2.3.2.3.1.hum1@noarch@public-hummingbird-x86_64-rpms as a component of Red Hat Hardened Images; nodejs22-full-i18n-1:22.23.4-2.3.2.3.1.hum1@aarch64 as a component of Red Hat Hardened Images; nodejs22-full-i18n-1:22.23.4-2.3.2.3.1.hum1@s390x as a component of Red Hat Hardened Images; nodejs22-full-i18n-1:22.23.4-2.3.2.3.1.hum1@x86_64 as a component of Red Hat Hardened Images; nodejs22-libs-1:22.23.4-2.3.2.3.1.hum1@aarch64 as a component of Red Hat Hardened Images; nodejs22-libs-1:22.23.4-2.3.2.3.1.hum1@s390x as a component of Red Hat Hardened Images; nodejs22-libs-1:22.23.4-2.3.2.3.1.hum1@x86_64 as a component of Red Hat Hardened Images; nodejs22-npm-1:10.9.9-1.22.23.4.2.3.2.3.1.hum1@noarch@public-hummingbird-aarch64-rpms as a component of Red Hat Hardened Images; nodejs22-npm-1:10.9.9-1.22.23.4.2.3.2.3.1.hum1@noarch@public-hummingbird-s390x-rpms as a component of Red Hat Hardened Images; nodejs22-npm-1:10.9.9-1.22.23.4.2.3.2.3.1.hum1@noarch@public-hummingbird-x86_64-rpms as a component of Red Hat Hardened Images; nodejs22-npm-bin-1:22.23.4-2.3.2.3.1.hum1@noarch@public-hummingbird-aarch64-rpms as a component of Red Hat Hardened Images; nodejs22-npm-bin-1:22.23.4-2.3.2.3.1.hum1@noarch@public-hummingbird-s390x-rpms as a component of Red Hat Hardened Images; nodejs22-npm-bin-1:22.23.4-2.3.2.3.1.hum1@noarch@public-hummingbird-x86_64-rpms as a component of Red Hat Hardened Images
    Red Hat Product Security ↗
  5. Vendor guidanceAuthoritative vendor guidance changed from remediation: access.redhat.com/CVE-2026-123863 to remediation: access.redhat.com/CVE-2026-123863.
    Before
    remediation: access.redhat.com/CVE-2026-123863
    After
    remediation: access.redhat.com/CVE-2026-123863
    Red Hat Product Security ↗
  6. Affected versionsThe structured affected or fixed version information changed.
    Before
    nodejs20.src as a component of Red Hat Hardened Images; nodejs22.src as a component of Red Hat Hardened Images; nodejs24.src as a component of Red Hat Hardened Images; nodejs25.src as a component of Red Hat Hardened Images; nodejs26.src as a component of Red Hat Hardened Images
    After
    nodejs24.src as a component of Red Hat Enterprise Linux 10; nodejs26.src as a component of Red Hat Enterprise Linux 10; nodejs-devel (nodejs:24) as a component of Red Hat Enterprise Linux 8; nodejs-docs (nodejs:24) as a component of Red Hat Enterprise Linux 8; nodejs-full-i18n (nodejs:24) as a component of Red Hat Enterprise Linux 8; nodejs-libs (nodejs:24) as a component of Red Hat Enterprise Linux 8; nodejs-nodemon.src (nodejs:24) as a component of Red Hat Enterprise Linux 8; nodejs-nodemon (nodejs:24) as a component of Red Hat Enterprise Linux 8; nodejs-packaging-bundler (nodejs:24) as a component of Red Hat Enterprise Linux 8; nodejs-packaging.src (nodejs:24) as a component of Red Hat Enterprise Linux 8; nodejs-packaging (nodejs:24) as a component of Red Hat Enterprise Linux 8; nodejs.src (nodejs:24) as a component of Red Hat Enterprise Linux 8; nodejs (nodejs:24) as a component of Red Hat Enterprise Linux 8; npm (nodejs:24) as a component of Red Hat Enterprise Linux 8; v8-12.4-devel (nodejs:24) as a component of Red Hat Enterprise Linux 8; v8-13.6-devel (nodejs:24) as a component of Red Hat Enterprise Linux 8; nodejs-docs (nodejs:24) as a component of Red Hat Enterprise Linux 9; nodejs-docs (nodejs:26) as a component of Red Hat Enterprise Linux 9; nodejs-full-i18n (nodejs:24) as a component of Red Hat Enterprise Linux 9; nodejs-full-i18n (nodejs:26) as a component of Red Hat Enterprise Linux 9; nodejs-libs (nodejs:24) as a component of Red Hat Enterprise Linux 9; nodejs-libs (nodejs:26) as a component of Red Hat Enterprise Linux 9; nodejs.src (nodejs:24) as a component of Red Hat Enterprise Linux 9; nodejs.src (nodejs:26) as a component of Red Hat Enterprise Linux 9; nodejs (nodejs:24) as a component of Red Hat Enterprise Linux 9; nodejs (nodejs:26) as a component of Red Hat Enterprise Linux 9; npm (nodejs:24) as a component of Red Hat Enterprise Linux 9; npm (nodejs:26) as a component of Red Hat Enterprise Linux 9; nodejs20.src as a component of Red Hat Hardened Images; nodejs22.src as a component of Red Hat Hardened Images; and 3 more
    Red Hat Product Security ↗
  7. Catalogue recordCVE added to the BlackTree catalogue.
    CNA ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
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.
Free version - for non-commercial use only.CVE-2026-123863 · cve.blacktree.nl