{"id":"CVE-2026-59877","revision":"7e14d4b182b845369f954af0aa07d97f","records":[{"revision":"7e14d4b182b845369f954af0aa07d97f","observedAt":"2026-10-25T14:19:22.811+00:00","statement":{"source":"nvd","id":"CVE-2026-59877","aliases":[],"title":"protobufjs compiles protobuf definitions into JavaScript (JS) functions. Prior to 7.6.5 and 8.6.6, protobufjs parsed option names by advancing through schema tokens until reaching an = token without checking for end of input, so a crafted .…","description":"protobufjs compiles protobuf definitions into JavaScript (JS) functions. Prior to 7.6.5 and 8.6.6, protobufjs parsed option names by advancing through schema tokens until reaching an = token without checking for end of input, so a crafted .proto schema that opens an option declaration and ends prematurely can cause parse, Root.load, or Root.loadSync to loop indefinitely. This issue is fixed in versions 7.6.5 and 8.6.6.","state":0,"publishedAt":"2026-07-08T16:16:34.363+00:00","modifiedAt":"2026-07-10T18:53:14.377+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"},{"system":"CVSS 3.1 · nvd@nist.gov · Primary","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5,"severity":"HIGH"}],"references":["https://github.com/protobufjs/protobuf.js/commit/10fba6d54815ceecca8a06b9a6db490c8f5d2217","https://github.com/protobufjs/protobuf.js/commit/fa5c73add738ceb471e74da8cc2f3727c3d0a69f","https://github.com/protobufjs/protobuf.js/pull/2352","https://github.com/protobufjs/protobuf.js/releases/tag/protobufjs-v7.6.5","https://github.com/protobufjs/protobuf.js/releases/tag/protobufjs-v8.6.6","https://github.com/protobufjs/protobuf.js/security/advisories/GHSA-j3f2-48v5-ccww"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-59877","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Analyzed","weaknesses":["CWE-835"],"productCriteria":["cpe:2.3:a:protobufjs_project:protobufjs:*:*:*:*:*:node.js:*:*"],"sourceDates":{"published":"2026-07-08T16:16:34.363","lastModified":"2026-07-10T18:53:14.377"},"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-2026-59877","identifiers":["CVE-2026-59877"]},"retained":false,"historicalAffected":[]}],"coverage":[]}