CVE-2026-101914
MEDIUMDescription
@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.
How to fix
No published remediation has been found for this vulnerability's affected products yet.
Mitigation guidance may be in the linked vendor advisories in the References section below.
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CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N
Exploit Intelligence
Low risk: more likely to be exploited than 15% of all known CVEs.
References
Related Vulnerabilities
Other CWE-187 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2024-41110 | Critical | 9.9 | 16% | - | Fix |
| CVE-2022-31802 | Critical | 9.8 | 1.3% | - | Fix |
| CVE-2026-35031 | Critical | 9.9 | 0.9% | - | Fix |
| CVE-2024-39742 | High | 8.1 | 0.8% | - | Fix |
| CVE-2026-84376 | Medium | 6.3 | 0.7% | - | Fix |
| CVE-2026-62750 | High | 6.5 | 0.7% | - | Fix |
Common questions
How do I fix CVE-2026-101914?
No published fix for CVE-2026-101914 has been found yet. Check the linked vendor advisories for guidance as it becomes available.
Is CVE-2026-101914 being actively exploited?
Not that we know of. CVE-2026-101914 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.25% is the estimated probability that it will be exploited in the next 30 days. That is higher than 15% of all scored CVEs.
How severe is CVE-2026-101914?
CVE-2026-101914 has a CVSS v3 base score of 6.5, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-09-30.