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 0.40% for the current model date.
BlackTreeCVE IntelligenceFull vulnerability report · 2026
CVE-2026-93751High confidence
uri-js through 4.4.1 Improper UTF-8 Decoding via pctDecChars
garycourt · uri-js
6.9MediumCVSS 4.0
Scheduled
Fix not verifiedMedium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.
R
Open reassessment dashboard →Operational reassessment
Published severity in operational context
Published severityMedium→Operational priority:Medium, unchanged from published severity.unchanged
Compensating controls
- 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 garycourt uri-js and falls inside the recorded affected range.
- Recheck the vendor advisory before scheduling a change because no verified fixed version is currently retained.
- Validate exposure, authentication requirements and compensating controls in the actual environment.
- Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
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.
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-uri-js | Affected, no fix publishedDebian currently tracks this release as open. | Not published in this feed | Debian Security Tracker ↗Source updated 9 Oct 2026 |
| Debian bookwormbookworm · source | node-uri-js | Affected, no fix publishedDebian currently tracks this release as open. | Not published in this feed | Debian Security Tracker ↗Source updated 9 Oct 2026 |
| Debian forkyforky · source | node-uri-js | Affected, no fix publishedDebian currently tracks this release as open. | Not published in this feed | Debian Security Tracker ↗Source updated 9 Oct 2026 |
| Debian sidsid · source | node-uri-js | Affected, no fix publishedDebian currently tracks this release as open. | Not published in this feed | Debian Security Tracker ↗Source updated 9 Oct 2026 |
| Ubuntu 24.04 LTSnoble · standard archive | node-uri-js | 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 8 Oct 2026 |
Direct vendor intelligence
2 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-2026-93751 · CSAF 2.0 · revision 3 · finalRed Hat Product Securityuri-js: uri-js: Improper UTF-8 decoding allows path traversal and CRLF injection
The vendor explicitly states that these products are not affected by this CVE.
- dotnet8.0.src as a component of Red Hat Hardened Images
- grafana12.4.src as a component of Red Hat Hardened Images
- grafana13.1.src as a component of Red Hat Hardened Images
- grafana13.2.src as a component of Red Hat Hardened Images
- jaeger.src as a component of Red Hat Hardened Images
- opentelemetry-collector-contrib.src as a component of Red Hat Hardened Images
- opentelemetry-collector-k8s.src as a component of Red Hat Hardened Images
- opentelemetry-collector.src as a component of Red Hat Hardened Images
- prometheus3.13.src as a component of Red Hat Hardened Images
- rust.src as a component of Red Hat Hardened Images
- Summary
- A flaw was found in uri-js. This improper UTF-8 (Unicode Transformation Format - 8-bit) decoding vulnerability in the `pctDecChars()` function allows a remote attacker to craft specially encoded payloads. These payloads can bypass platform decoder validation, leading to the injection of path traversal or Carriage Return Line Feed (CRLF) sequences. This could enable attackers to access unauthorized files or manipulate application logs and HTTP responses.
- Remediation
- No remediation text is recorded.
CVE-2026-93751 · CSAF 2.0 · revision 2 · interimSUSE Product Security TeamCVE-2026-93751
The vendor explicitly identifies these products as affected by this CVE.
- pgadmin4 as component of SUSE Linux Enterprise Desktop 15 SP7
- pgadmin4-doc as component of SUSE Linux Enterprise Desktop 15 SP7
- pgadmin4-web as component of SUSE Linux Enterprise Desktop 15 SP7
- system-user-pgadmin as component of SUSE Linux Enterprise Desktop 15 SP7
- pgadmin4 as component of SUSE Linux Enterprise High Performance Computing 15 SP1
- pgadmin4-doc as component of SUSE Linux Enterprise High Performance Computing 15 SP1
- pgadmin4-web as component of SUSE Linux Enterprise High Performance Computing 15 SP1
- pgadmin4 as component of SUSE Linux Enterprise High Performance Computing 15 SP2
- pgadmin4-doc as component of SUSE Linux Enterprise High Performance Computing 15 SP2
- pgadmin4-web as component of SUSE Linux Enterprise High Performance Computing 15 SP2
- pgadmin4 as component of SUSE Linux Enterprise High Performance Computing 15 SP3
- pgadmin4-doc as component of SUSE Linux Enterprise High Performance Computing 15 SP3
- Summary
- uri-js through 4.4.1 contains an improper UTF-8 decoding vulnerability in pctDecChars() that decodes invalid and overlong percent-encoded sequences into ASCII metacharacters. Attackers can craft percent-encoded payloads to bypass platform decoder validation and inject path traversal or CRLF sequences that downstream consumers process without filtering.
- Remediation
- No remediation text is recorded.
Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.
Fix not verified01
What, why and how
uri-js through 4.4.1 contains an improper UTF-8 decoding vulnerability in pctDecChars() that decodes invalid and overlong percent-encoded sequences into ASCII metacharacters. Attackers can craft percent-encoded payloads to bypass platform decoder validation and inject path traversal or CRLF sequences that downstream consumers process without filtering.
What
uri-js through 4.4.1 contains an improper UTF-8 decoding vulnerability in pctDecChars() that decodes invalid and overlong percent-encoded sequences into ASCII metacharacters. Attackers can craft percent-encoded payloads to bypass platform decoder validation and inject path traversal or CRLF sequences that downstream consumers process without filtering.
Why
The product does not properly handle when an input contains Unicode encoding.
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
uri-js through 4.4.1 contains an improper UTF-8 decoding vulnerability in pctDecChars() that decodes invalid and overlong percent-encoded sequences into ASCII metacharacters. Attackers can craft percent-encoded payloads to bypass platform decoder validation and inject path traversal or CRLF sequences that downstream consumers process without filtering.
Why
The product does not properly handle when an input contains Unicode encoding.
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 → Improper Handling of Unicode Encoding → 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
- Not a CVSS 4.0 base metric
- Weakness
?
CWE means Common Weakness Enumeration: a standard category for the underlying weakness. - CWE-176 ↗
CWE-176: Improper Handling of Unicode Encoding. The product does not properly handle when an input contains Unicode encoding.
- CVSS vector
?
CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity. CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:NCommon Vulnerability Scoring System 4.0: 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.ATNoneAttack requirements: No additional deployment or execution condition is required.PRNonePrivileges required: The attacker does not need an account or existing privileges.UINoneUser interaction: No action by another user is required.VCLowVulnerable-system confidentiality: A successful attack can cause a limited loss.VILowVulnerable-system integrity: A successful attack can cause a limited loss.VANoneVulnerable-system availability: No direct loss is represented by this metric.SCNoneSubsequent-system confidentiality: No direct loss is represented by this metric.SINoneSubsequent-system integrity: No direct loss is represented by this metric.SANoneSubsequent-system availability: 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 not verified
- Affected
- pgadmin4 as component of SUSE Linux Enterprise Desktop 15 SP7
- pgadmin4-doc as component of SUSE Linux Enterprise Desktop 15 SP7
- pgadmin4-web as component of SUSE Linux Enterprise Desktop 15 SP7
- system-user-pgadmin as component of SUSE Linux Enterprise Desktop 15 SP7
- pgadmin4 as component of SUSE Linux Enterprise High Performance Computing 15 SP1
- pgadmin4-doc as component of SUSE Linux Enterprise High Performance Computing 15 SP1
- pgadmin4-web as component of SUSE Linux Enterprise High Performance Computing 15 SP1
- pgadmin4 as component of SUSE Linux Enterprise High Performance Computing 15 SP2
- pgadmin4-doc as component of SUSE Linux Enterprise High Performance Computing 15 SP2
- pgadmin4-web as component of SUSE Linux Enterprise High Performance Computing 15 SP2
- pgadmin4 as component of SUSE Linux Enterprise High Performance Computing 15 SP3
- pgadmin4-doc as component of SUSE Linux Enterprise High Performance Computing 15 SP3
- pgadmin4-web as component of SUSE Linux Enterprise High Performance Computing 15 SP3
- pgadmin4 as component of SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS
- pgadmin4-doc as component of SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS
- pgadmin4-web as component of SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS
- pgadmin4 as component of SUSE Linux Enterprise High Performance Computing 15 SP4
- pgadmin4-doc as component of SUSE Linux Enterprise High Performance Computing 15 SP4
- pgadmin4-web as component of SUSE Linux Enterprise High Performance Computing 15 SP4
- pgadmin4 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS
- pgadmin4-doc as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS
- pgadmin4-web as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS
- pgadmin4 as component of SUSE Linux Enterprise High Performance Computing 15 SP5
- pgadmin4-doc as component of SUSE Linux Enterprise High Performance Computing 15 SP5
- pgadmin4-web as component of SUSE Linux Enterprise High Performance Computing 15 SP5
- cockpit as component of SUSE Linux Enterprise Micro 5.3
- cockpit-bridge as component of SUSE Linux Enterprise Micro 5.3
- cockpit-machines as component of SUSE Linux Enterprise Micro 5.3
- cockpit-networkmanager as component of SUSE Linux Enterprise Micro 5.3
- cockpit-podman as component of SUSE Linux Enterprise Micro 5.3
- and 232 more
- Fixed
- No fixed version is explicitly recorded in the structured CVE data.
- Action
- No verified patch reference is present in the current structured sources. Check the vendor advisory before making a change.
- 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 18 Sept 2026 · Last source change 24 Sept 2026, 14:23 UTC · CWE-176 · Improper Handling of Unicode Encoding
CVE recordCVE.org · 5.2
CVSS sourceCNA
EPSS source FIRST · tracked since 2026-09-19
?
The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.European sourceENISA EUVD · EUVD-2026-83256
Product sourceVendor CSAF · SUSE Product Security Team
Remediation sourceCVE/CNA references
CWE sourceCNA
NVD statusNVD awaiting enrichment
Core structured fields are present and their contributing authorities are shown above.
Material change intelligence
View recent updates ↗What changed after publication
- Vendor guidanceAuthoritative vendor guidance changed from remediation: access.redhat.com/CVE-2026-93751 to remediation: access.redhat.com/CVE-2026-93751.Red Hat Product Security ↗
- Before
- remediation: access.redhat.com/CVE-2026-93751
- After
- remediation: access.redhat.com/CVE-2026-93751
- Affected versionsThe structured affected or fixed version information changed.Red Hat Product Security ↗
- Before
- dotnet8.0.src as a component of Red Hat Hardened Images; grafana12.4.src as a component of Red Hat Hardened Images; grafana13.1.src as a component of Red Hat Hardened Images; grafana13.2.src as a component of Red Hat Hardened Images; opentelemetry-collector-contrib.src as a component of Red Hat Hardened Images; opentelemetry-collector-k8s.src as a component of Red Hat Hardened Images; rust.src as a component of Red Hat Hardened Images
- After
- Affected versionsThe structured affected or fixed version information changed.Red Hat Product Security ↗
- Before
- dotnet8.0.src as a component of Red Hat Hardened Images; grafana12.4.src as a component of Red Hat Hardened Images; grafana13.1.src as a component of Red Hat Hardened Images; grafana13.2.src as a component of Red Hat Hardened Images; jaeger.src as a component of Red Hat Hardened Images; opentelemetry-collector-contrib.src as a component of Red Hat Hardened Images; opentelemetry-collector-k8s.src as a component of Red Hat Hardened Images; opentelemetry-collector.src as a component of Red Hat Hardened Images; prometheus3.13.src as a component of Red Hat Hardened Images; rust.src as a component of Red Hat Hardened Images
- After
- dotnet8.0.src as a component of Red Hat Hardened Images; grafana12.4.src as a component of Red Hat Hardened Images; grafana13.1.src as a component of Red Hat Hardened Images; grafana13.2.src as a component of Red Hat Hardened Images; opentelemetry-collector-contrib.src as a component of Red Hat Hardened Images; opentelemetry-collector-k8s.src as a component of Red Hat Hardened Images; rust.src as a component of Red Hat Hardened Images
- ENISA EUVD mappingEUVD-2026-83256 was added to the official ENISA EUVD mapping for this CVE.ENISA EUVD ↗
- Before
- not recorded
- After
- {"euvdId":"EUVD-2026-83256"}
- Catalogue recordCVE added to the BlackTree catalogue.CNA ↗
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.