@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 6.56.5Trending — 4 sources updated this week
EchelonGraph scoreMEDIUM confidence
“—” beside the score: it is equal to the CVSS score beside it.
Score 6.5 from GitHub Security Advisory (severity: MODERATE) published 2026-09-28. A secondary CVSS source baseline 6.5; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Also known asEUVD-2026-88464 (ENISA EUVD) · GHSA-88h9-xgvx-hvf2 (GitHub Security Advisories)Source: ENISA EUVD
6.5EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
- 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 29/100
EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.
How it’s computed (value × EchelonGraph’s weight)Severity65% × 45%Impact severity (EG Severity): CVSS 6.5 of 10. Never the KEV-floored or EPSS-lifted EG Score.Exploitation0.2% × 40%FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.Automatability0% × 15%CISA's SSVC Automatable value: no (Vulnrichment).SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.Action: A fix is available. Apply it within your standard update timelines. - EPSS PROB
- 0.3%
- EPSS %ILE
- 16th
- KEV
- Not listed
What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)
The EG score (6.5): severity, escalated by confirmed exploitation. This CVE's 6.5 is its impact severity (EG Severity), not escalated.
- EG Severity
- 6.5 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
- EG Likelihood
- 0.3% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-31). FIRST's exploitation probability, not an EchelonGraph model.
- Confirmed exploitation
- None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
- EG Priority
- SSVC Track at medium mission impactTrack at every mission impact level.CISA BOD 26-04: 60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.
SSVC (CISA's decision table, applied by EchelonGraph)Track 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). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table
BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.
The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it
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/grpc-js@1.14.5 (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/grpc-js@1.13.6 (contains commit 6cf64b596da0)
https://github.com/grpc/grpc-node/commit/6cf64b596da03f1942a6b168998f0670217a99c4GitHub advisoryMentions a patch (unverified)
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.
Patch Availability(2)
| Vendor / Ecosystem | Fix (by version range) / Patch | Released | Source |
|---|---|---|---|
| npm | @grpc/grpc-js-xds @ 1.13.1 (fixes < 1.13.1) | — | ghsa |
| npm | @grpc/grpc-js-xds @ 1.14.1 (fixes = 1.14.0) | — | ghsa |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(1 across 1 ecosystem)
npm(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| @grpc/grpc-js-xds | 1.14.0 |
| — |
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 10× in last 7d / 48× in last 30d)
Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.
- 2026-11-01 16:33 UTCEPSS rescoreEPSS 0.3% · 16th percentile
- 2026-11-01 08:00 UTCGHSA enrichmentGHSA-88h9-xgvx-hvf2 · GitHub severity MODERATE · GitHub CVSS 6.5
- 2026-11-01 08:00 UTCEG score recompute
- 2026-10-31 16:31 UTCEPSS rescoreEPSS 0.3% · 16th percentile
- 2026-10-31 12:25 UTCOSV refresh
- 2026-10-30 16:33 UTCEPSS rescoreEPSS 0.3% · 16th percentile
- 2026-10-29 16:32 UTCEPSS rescoreEPSS 0.3% · 16th percentile
- 2026-10-28 16:31 UTCEPSS rescoreEPSS 0.3% · 16th percentile
- 2026-10-27 16:31 UTCEPSS rescoreEPSS 0.3% · 16th percentile
- 2026-10-26 16:30 UTCEPSS rescoreEPSS 0.3% · 16th percentile
- 2026-10-25 16:32 UTCEPSS rescoreEPSS 0.3% · 16th percentile
- 2026-10-25 14:57 UTCEG score recompute
- 2026-10-24 16:31 UTCEPSS rescoreEPSS 0.3% · 15th percentile
- 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.3% · 15th percentile
- 2026-10-23 09:32 UTCEG score recompute
- 2026-10-22 16:33 UTCEPSS rescoreEPSS 0.3% · 15th percentile
- 2026-10-21 16:31 UTCEPSS rescoreEPSS 0.3% · 15th percentile
- 2026-10-20 16:31 UTCEPSS rescoreEPSS 0.3% · 15th percentile
- 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.3% · 15th percentile
- 2026-10-18 16:31 UTCEPSS rescoreEPSS 0.3% · 15th percentile
- 2026-10-18 05:11 UTCEG score recompute
- 2026-10-17 16:33 UTCEPSS rescoreEPSS 0.3% · 15th percentile
- 2026-10-16 16:40 UTCEPSS rescoreEPSS 0.3% · 15th percentile
- 2026-10-15 16:31 UTCEPSS rescoreEPSS 0.3% · 15th percentile
- 2026-10-14 16:31 UTCEPSS rescoreEPSS 0.3% · 15th percentile
Show 34 moreShow fewer
- 2026-10-13 16:33 UTCEPSS rescoreEPSS 0.3% · 15th percentile
- 2026-10-12 16:41 UTCEG score recompute
- 2026-10-12 16:33 UTCEPSS rescoreEPSS 0.3% · 15th percentile
- 2026-10-11 20:16 UTCEG score recompute
- 2026-10-11 18:28 UTCEG score recompute
- 2026-10-11 15:02 UTCEG score recompute
- 2026-10-11 13:47 UTCEPSS rescoreEPSS 0.3% · 15th percentile
- 2026-10-11 06:34 UTCEG score recompute
- 2026-10-10 19:59 UTCEPSS rescoreEPSS 0.3% · 15th percentile
- 2026-10-10 05:34 UTCEG score recompute
- 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.3% · 15th percentile
- 2026-10-09 04:33 UTCEG score recompute
- 2026-10-08 17:11 UTCEPSS rescoreEPSS 0.3% · 15th percentile
- 2026-10-08 03:32 UTCEG score recompute
- 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.3% · 15th percentile
- 2026-10-07 02:31 UTCEG score recompute
- 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.3% · 15th percentile
- 2026-10-06 01:29 UTCEG score recompute
- 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.3% · 14th percentile
- 2026-10-05 00:13 UTCEG score recompute
- 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.3% · 14th percentile
- 2026-10-03 23:08 UTCEG score recompute
- 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.3% · 14th percentile
- 2026-10-02 22:03 UTCEG score recompute
- 2026-10-01 21:02 UTCEG score recompute
- 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.3% · 14th percentile
- 2026-09-30 20:02 UTCEG score recompute
- 2026-09-30 15:02 UTCEPSS rescoreEPSS 0.3% · 14th percentile
- 2026-09-29 20:31 UTCEG score recompute
- 2026-09-29 19:38 UTCEG score recompute
- 2026-09-29 15:20 UTCEPSS rescoreEPSS 0.3% · 14th percentile
- 2026-09-28 20:29 UTCEG score recompute
- 2026-09-28 19:48 UTCEG score recomputeFirst assessed: 6.5 MEDIUM
- 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-severity vulnerability; its CVE record was 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 the CVE record for CVE-2026-101914 published?
The CVE record for CVE-2026-101914 was published on September 28, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of September 30, 2026; the record at its source may have been updated since.
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 (16th 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.