{"id":"GHSA-j452-xhg8-qg39","summary":"Mafintosh's protocol-buffers-schema is vulnerable to prototype pollution","details":"JavaScript is vulnerable to prototype pollution in Mafintosh's protocol-buffers-schema Version 3.6.0, where an attacker may alter the application logic, bypass security checks, cause a DoS or achieve remote code execution.","aliases":["CVE-2026-5758"],"modified":"2026-05-05T20:14:24.935644980Z","published":"2026-04-15T18:31:58Z","related":["CGA-p4pf-w66p-x524"],"database_specific":{"github_reviewed_at":"2026-04-16T21:33:53Z","severity":"MODERATE","nvd_published_at":"2026-04-15T18:17:24Z","cwe_ids":["CWE-1321"],"github_reviewed":true},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-5758"},{"type":"WEB","url":"https://github.com/mafintosh/protocol-buffers-schema/pull/70"},{"type":"PACKAGE","url":"https://github.com/mafintosh/protocol-buffers-schema"},{"type":"WEB","url":"https://morielharush.github.io/2026/04/12/cve-2026-5758-protocol-buffers-schema-prototype-pollution"}],"affected":[{"package":{"name":"protocol-buffers-schema","ecosystem":"npm","purl":"pkg:npm/protocol-buffers-schema"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"3.6.1"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-j452-xhg8-qg39/GHSA-j452-xhg8-qg39.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L"}]}