{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-115473","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-10-22T15:06:52.738Z","datePublished":"2026-11-04T21:40:39.470Z","dateUpdated":"2026-11-05T20:02:27.603Z"},"containers":{"cna":{"title":"Mongoose: Heap OOB reads and null-byte bypass in mg_path_is_sane (util.c)","problemTypes":[{"descriptions":[{"cweId":"CWE-125","lang":"en","description":"CWE-125: Out-of-bounds Read","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-158","lang":"en","description":"CWE-158: Improper Neutralization of Null Byte or NUL Character","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L","version":"3.1"}}],"references":[{"name":"https://github.com/cesanta/mongoose/security/advisories/GHSA-cjmx-764f-286c","tags":["x_refsource_CONFIRM"],"url":"https://github.com/cesanta/mongoose/security/advisories/GHSA-cjmx-764f-286c"},{"name":"https://github.com/cesanta/mongoose/commit/b55de8b151d1466a3e41d1f854f22eeb6faa23dc","tags":["x_refsource_MISC"],"url":"https://github.com/cesanta/mongoose/commit/b55de8b151d1466a3e41d1f854f22eeb6faa23dc"},{"name":"https://github.com/cesanta/mongoose/releases/tag/7.22","tags":["x_refsource_MISC"],"url":"https://github.com/cesanta/mongoose/releases/tag/7.22"}],"affected":[{"vendor":"cesanta","product":"mongoose","versions":[{"version":"< 7.22","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-11-04T21:40:39.470Z"},"descriptions":[{"lang":"en","value":"Mongoose is an embedded web server and network library. Prior to 7.22, mg_path_is_sane in src/util.c read path.buf[1] without first requiring path.len to be at least two and read s[2] when only two bytes remained. Unauthenticated remote requests reaching mg_http_upload or mg_http_serve_dir with the affected short path shapes could therefore trigger one-byte heap out-of-bounds reads. On bare-metal or RTOS targets without memory protection, the adjacent byte could be exposed or influence whether a path was accepted, and instrumented builds could crash. This issue is fixed in version 7.22."}],"source":{"advisory":"GHSA-cjmx-764f-286c","discovery":"UNKNOWN"}},"adp":[{"references":[{"url":"https://github.com/cesanta/mongoose/security/advisories/GHSA-cjmx-764f-286c","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-11-05T20:02:05.668751Z","id":"CVE-2026-115473","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-11-05T20:02:27.603Z"}}]}}