{"answers":{"affected":"4 open source packages ship an affected version, including @grpc/grpc-js.","exploited":"There is no known exploitation of CVE-2026-101916 in the wild and no public exploit code.","fix":"Upgrade @grpc/grpc-js to a fixed version for your release line: 1.13.6 or 1.14.5.","what":"CVE-2026-101916 is a high-severity authentication bypass vulnerability in grpc-node, published on 28 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-101916 and fix it if it is affected.\n\nWhat it is: CVE-2026-101916 is a high-severity authentication bypass vulnerability in grpc-node, published on 28 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-101916 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- @grpc/grpc-js (npm): affected all versions; fixed in 1.13.6\n- @grpc/grpc-js (npm): affected all versions; fixed in 1.13.6\n- @grpc/grpc-js (npm): affected from 1.14.0; fixed in 1.14.5\n- @grpc/grpc-js (npm): affected from 1.14.0; fixed in 1.14.5\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-101916/ (Markdown: https://insights.sbomify.com/CVE-2026-101916/index.md)","id":"CVE-2026-101916","markdown":"https://insights.sbomify.com/CVE-2026-101916/index.md","name":"CVE-2026-101916","record":{"aliases":["CLEANSTART-2026-AS30225","CLEANSTART-2026-GT88240","CLEANSTART-2026-HQ75468","CLEANSTART-2026-LD22017","ECHO-bc2f-c80e-b44d","GHSA-m9gg-hp2v-232j","MINI-2g8f-38xq-2gg8","MINI-439f-q38w-2j8x","MINI-444w-cjv8-r5mw","MINI-4mg7-wfg3-877r","MINI-5hhr-jfjp-x3jf","MINI-5hq4-54jm-73vv","MINI-7c44-chvj-q6fv","MINI-7g9j-g343-c24c","MINI-f8w9-6g9h-rqh3","MINI-gccp-69mh-w9jj","MINI-mqx3-j399-6qcj","MINI-q3qx-5cj8-7g2m","MINI-q98p-m76r-6rh6","MINI-qwvv-99vw-4532","MINI-w2j5-283q-23j9","ROOT-APP-NPM-CVE-2026-101916"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":true,"product_category":"gRPC JavaScript library","requires_auth":"none","summary":"Attackers can bypass authentication in gRPC JavaScript applications by presenting unauthorized certificates when client certificate requirements are disabled.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":7.4,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-295","name":"Improper Certificate Validation"}],"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.","ecosystems":["npm"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"@grpc/grpc-js: In certain configurations, getAuthContext can return unauthorized certificates as though they were authorized","id":"CVE-2026-101916","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":"auth_bypass","year":"2026"},"n_packages":4,"n_references":4,"next":{"headline":"PyJWT: PyJWKClient still amplifies unauthenticated JWKS fetches on unknown kid values (incomplete fix of CVE-2026-48524)","id":"CVE-2026-101917"},"packages":[{"ecosystem":"npm","fixed":["1.13.6"],"introduced":["0"],"last_affected":[],"package":"@grpc/grpc-js","purl":null,"source":"GHSA-m9gg-hp2v-232j"},{"ecosystem":"npm","fixed":["1.13.6"],"introduced":["0"],"last_affected":[],"package":"@grpc/grpc-js","purl":"pkg:npm/%40grpc/grpc-js","source":"GHSA-m9gg-hp2v-232j"},{"ecosystem":"npm","fixed":["1.14.5"],"introduced":["1.14.0"],"last_affected":[],"package":"@grpc/grpc-js","purl":null,"source":"GHSA-m9gg-hp2v-232j"},{"ecosystem":"npm","fixed":["1.14.5"],"introduced":["1.14.0"],"last_affected":[],"package":"@grpc/grpc-js","purl":"pkg:npm/%40grpc/grpc-js","source":"GHSA-m9gg-hp2v-232j"}],"prev":{"headline":"@grpc/grpc-js: The server transmits some error messages thrown by method handlers to the client in status messages","id":"CVE-2026-101915"},"products":["grpc-node"],"published":"2026-09-28","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-10-01","vendors":["grpc"]},"summary":"Attackers can bypass authentication in gRPC JavaScript applications by presenting unauthorized certificates when client certificate requirements are disabled.","url":"https://insights.sbomify.com/CVE-2026-101916/"}