{"id":"CVE-2026-54269","revision":"7bb8cd4ad3f142df844e37ea2061a07c","records":[{"revision":"7bb8cd4ad3f142df844e37ea2061a07c","observedAt":"2026-10-27T14:13:32.924+00:00","statement":{"source":"nvd","id":"CVE-2026-54269","aliases":[],"title":"protobufjs compiles protobuf definitions into JavaScript (JS) functions. Prior to 8.6.0 and 7.6.3, protobufjs accepted certain schema-derived names that could collide with properties used by protobufjs runtime helpers. The known affected na…","description":"protobufjs compiles protobuf definitions into JavaScript (JS) functions. Prior to 8.6.0 and 7.6.3, protobufjs accepted certain schema-derived names that could collide with properties used by protobufjs runtime helpers. The known affected names are fields named hasOwnProperty, field or oneof names such as $type when loaded through protobufjs JSON/reflection descriptors, and service methods whose generated helper name is rpcCall. When affected message or service types were used, protobufjs could read schema-controlled data where it expected an own-property helper, reflected type metadata, or the base RPC helper. This could cause deterministic exceptions or recursive calls in affected decode post-checks, verification, object conversion, reflected JSON serialization, or protobufjs RPC helper invocation. This vulnerability is fixed in 8.6.0 and 7.6.3.","state":0,"publishedAt":"2026-06-22T18:16:45.35+00:00","modifiedAt":"2026-10-25T23:10:00.167+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","score":5.3,"severity":"MEDIUM"}],"references":["https://github.com/protobufjs/protobuf.js/security/advisories/GHSA-f38q-mgvj-vph7"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-54269","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Analyzed","weaknesses":["CWE-674","CWE-754"],"productCriteria":["cpe:2.3:a:protobufjs_project:protobufjs:*:*:*:*:*:node.js:*:*","cpe:2.3:a:protobufjs_project:protobufjs-cli:*:*:*:*:*:node.js:*:*"],"sourceDates":{"published":"2026-06-22T18:16:45.350","lastModified":"2026-10-25T23:10:00.167"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-54269","identifiers":["CVE-2026-54269"]},"retained":false,"historicalAffected":[]}],"coverage":[]}