{"id":"CVE-2026-101916","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-101916","generatedAt":"2026-10-28T01:41:26.623Z","title":"Prior to 1.13.6 and 1.14.5, getAuthContext does not distinguish authorized from unauthorized peer certificates when server credentials set requireClientCertificate to false.","description":"@grpc/grpc-js implements the core functionality of gRPC purely in JavaScript, without a C++ addon. Prior to 1.13.6 and 1.14.5, getAuthContext does not distinguish authorized from unauthorized peer certificates when server credentials set requireClientCertificate to false. When applications use the returned authentication context, they can treat an unauthorized certificate as authorized, causing improper authentication. @grpc/grpc-js-xds can reach this condition when RBAC authentication is enabled in affected configurations. This issue is fixed in version 1.14.5 and 1.13.6.","published":"2026-09-28T21:17:13.000Z","lastModified":"2026-10-01T15:17:25.000Z","status":"Deferred","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":7.4,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N"},"cwe":["CWE-295"],"affected":[],"epss":{"score":0.00215,"percentile":0.1184,"date":"2026-10-26","history":[{"date":"2026-09-29","score":0.00208,"percentile":0.09723}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.21%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-09-28T21:17:13.000Z","detail":{"score":"7.4","severity":"HIGH","publishedAt":"2026-09-28T21:17:13.030Z"},"summary":"New CVE, high severity (CVSS 7.4)."}],"references":[{"url":"https://github.com/grpc/grpc-node/commit/2a84ec8b01b9db68ed9d2b117a53a81449edb8ee","source":"security-advisories@github.com"},{"url":"https://github.com/grpc/grpc-node/commit/b4e0079c6d22a2adedfcac748e0bc083f783bc7c","source":"security-advisories@github.com"},{"url":"https://github.com/grpc/grpc-node/releases/tag/@grpc/grpc-js%401.14.5","source":"security-advisories@github.com"},{"url":"https://github.com/grpc/grpc-node/security/advisories/GHSA-m9gg-hp2v-232j","source":"security-advisories@github.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-101916","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}