@grpc/grpc-js implements the core functionality of gRPC purely in JavaScript, without a C++ addon. Prior to 1.13.1 and 1.14.1, the exact path (method name) matcher used by RBAC performs a prefix comparison instead of an equality comparison when case-insensitive matching is enabled. If one service method name prefixes another and the methods have different access rules, a request for the longer method can match the shorter method's rule and cause incorrect authorization. This issue is fixed in versions 1.13.1 and 1.14.1.
CVE-2026-101914
MEDIUMPre-NVD 6.56.5—Trending — 3 sources updated this week
EchelonGraph scoreMEDIUM confidence
This medium-severity CVE scores 6.5 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3% (14th percentile of EPSS-scored CVEs). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
Triggered by: NVD CVSS baseline
Sources: epss, secondary
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 6.5Exploit: None knownExposed services: Not assessed
A fix is available — apply it.
- CVSS v3
- 6.5
- EG Score
- 6.5MEDIUMmedium confidence
- EG Risk
- 29EG Risk 29/100CISA SSVC
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity65% × 45%Exploitation0% × 40%Automatability0% × 15%CISA SSVC: Track at every mission impact level.Action: A fix is available. Apply it within your standard update timelines. - EPSS PROB
- 0.3%
- EPSS %ILE
- 14th
- KEV
- Not listed
CISA SSVCTrack at every mission impact level.
A fix is available. Apply it within your standard update timelines.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table
Published
September 28, 2026
Last Modified
September 30, 2026
Advisory Details (4)
Auto-updated Sep 28, 2026Patch available. Sources: github, github_commit.
github_commit Patch Available
commit f32f3712e445 (grpc/grpc-node)
Patch available: grpc/grpc-node @grpc/[email protected] (contains commit f32f3712e445)
https://github.com/grpc/grpc-node/commit/f32f3712e44581d8dfc8359bd8d30096662f4c75github_commit
commit a6c5b31180cc (grpc/grpc-node)
Fix landed in grpc/grpc-node commit a6c5b31180cc — awaiting tagged release
https://github.com/grpc/grpc-node/commit/a6c5b31180cc8cea94d0a5ea215ce31a49e0409fgithub_commit Patch Available
commit 6cf64b596da0 (grpc/grpc-node)
Patch available: grpc/grpc-node @grpc/[email protected] (contains commit 6cf64b596da0)
https://github.com/grpc/grpc-node/commit/6cf64b596da03f1942a6b168998f0670217a99c4github Patch Available
The exact path match matcher incorrectly only applies a prefix match for case-insensitive matches · Advisory · grpc/grpc-node · GitHub
https://github.com/grpc/grpc-node/security/advisories/GHSA-88h9-xgvx-hvf2Vendor Advisories for CVE-2026-101914(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Affected Packages
(1 across 1 ecosystem)
npm(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| @grpc/grpc-js-xds | 1.14.0 | 1.13.1 | — |
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 13× in last 7d / 13× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-10-03 23:08 UTCEG score recompute
- 2026-10-03 14:25 UTCEPSS rescore
- 2026-10-02 22:03 UTCEG score recompute
- 2026-10-01 21:02 UTCEG score recompute
- 2026-10-01 19:49 UTCEPSS rescore
- 2026-09-30 20:02 UTCEG score recompute
- 2026-09-30 15:02 UTCEPSS rescore
- 2026-09-29 20:31 UTCEG score recompute
- 2026-09-29 19:38 UTCEG score recompute
- 2026-09-29 15:20 UTCEPSS rescore
- 2026-09-28 20:29 UTCEG score recompute
- 2026-09-28 19:48 UTCEG score recompute
- 2026-09-28 19:46 UTCMITRE cvelistV5first tracked
Related CVEs(same CWE)
Frequently asked(5)
What is CVE-2026-101914?
CVE-2026-101914 is a medium vulnerability published on September 28, 2026. @grpc/grpc-js implements the core functionality of gRPC purely in JavaScript, without a C++ addon. Prior to 1.13.1 and 1.14.1, the exact path (method name) matcher used by RBAC performs a prefix comparison instead of an equality comparison when case-insensitive matching is enabled. If one service…
When was CVE-2026-101914 disclosed?
CVE-2026-101914 was first published on September 28, 2026, with the most recent update on September 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-101914 actively exploited?
CVE-2026-101914 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (14th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-101914?
CVE-2026-101914 has a CVSS base score of 6.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-101914?
A fix for CVE-2026-101914 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-101914 are linked in the Vendor Advisories panel on this page.
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-101914
Is Your Infrastructure Affected by CVE-2026-101914?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.