{"id":"CVE-2026-44294","aliases":["GHSA-2pr8-phx7-x9h3"],"url":"https://o3.security/vulnerability/CVE-2026-44294","summary":"protobufjs: Denial of service from crafted field names in generated code","details":"protobufjs compiles protobuf definitions into JavaScript (JS) functions. Prior to 7.5.6 and 8.0.2, protobufjs generated JavaScript property accessors from schema-controlled field and oneof names. Certain control characters in field names were not escaped before being embedded into generated function bodies. A crafted schema or JSON descriptor could therefore cause generated encode, decode, verify, or conversion functions to fail during compilation. This vulnerability is fixed in 7.5.6 and 8.0.2.","published":"2026-05-13T14:44:30.474Z","modified":"2026-07-15T01:49:04.680890089Z","cvss":{"score":5.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"},"epss":{"score":0.00431,"percentile":0.35504,"asOf":"2026-08-09"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"protobufjs","fixedVersion":"7.5.6"},{"ecosystem":"npm","name":"protobufjs","fixedVersion":"8.0.2"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44294.json"},{"type":"ADVISORY","url":"https://github.com/protobufjs/protobuf.js/security/advisories/GHSA-2pr8-phx7-x9h3"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-44294"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-15T01:49:04.680890089Z"}}