{"id":"CVE-2026-22780","state":"PUBLISHED","title":"Rizin has a heap overflow on mach0_chained_fixups.c","description":"Rizin is a UNIX-like reverse engineering framework and command-line toolset. Prior to 0.8.2, a heap overflow can be exploited when a malicious mach0 file, having bogus entries for the dyld chained segments, is parsed by rizin. This vulnerability is fixed in 0.8.2.","publishedAt":"2026-02-02T20:52:23.859Z","updatedAt":"2026-02-03T15:37:25.089Z","severity":{"score":4.4,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L","source":"GitHub_M"},"assigner":"GitHub_M","products":["rizinorg rizin"],"affected":[{"vendor":"rizinorg","product":"rizin","versions":[{"version":"< 0.8.2","status":"affected"}]}],"references":["https://github.com/rizinorg/rizin/security/advisories/GHSA-f3v7-xhmj-9cjj","https://github.com/rizinorg/rizin/issues/5768","https://github.com/rizinorg/rizin/pull/5770","https://github.com/rizinorg/rizin/commit/41ea75d5b07d9b41b27ae80675cdda65f1b1c989","https://github.com/rizinorg/rizin/blob/6dd0dba9ff4dc706f549d0cdcd93856b49e59aa0/librz/bin/format/mach0/mach0_chained_fixups.c#L200","https://github.com/rizinorg/rizin/releases/tag/v0.8.2"],"weaknesses":["CWE-770"],"ingestedAt":"2026-10-29T20:11:21.040Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/22xxx/CVE-2026-22780.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-22780","state":"PUBLISHED","datePublished":"2026-02-02T20:52:23.859Z","dateUpdated":"2026-02-03T15:37:25.089Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-01-09T18:27:19.388Z"},"containers":{"cna":{"title":"Rizin has a heap overflow on mach0_chained_fixups.c","descriptions":[{"lang":"en","value":"Rizin is a UNIX-like reverse engineering framework and command-line toolset. Prior to 0.8.2, a heap overflow can be exploited when a malicious mach0 file, having bogus entries for the dyld chained segments, is parsed by rizin. This vulnerability is fixed in 0.8.2."}],"affected":[{"vendor":"rizinorg","product":"rizin","versions":[{"version":"< 0.8.2","status":"affected"}]}],"references":[{"url":"https://github.com/rizinorg/rizin/security/advisories/GHSA-f3v7-xhmj-9cjj","name":"https://github.com/rizinorg/rizin/security/advisories/GHSA-f3v7-xhmj-9cjj","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/rizinorg/rizin/issues/5768","name":"https://github.com/rizinorg/rizin/issues/5768","tags":["x_refsource_MISC"]},{"url":"https://github.com/rizinorg/rizin/pull/5770","name":"https://github.com/rizinorg/rizin/pull/5770","tags":["x_refsource_MISC"]},{"url":"https://github.com/rizinorg/rizin/commit/41ea75d5b07d9b41b27ae80675cdda65f1b1c989","name":"https://github.com/rizinorg/rizin/commit/41ea75d5b07d9b41b27ae80675cdda65f1b1c989","tags":["x_refsource_MISC"]},{"url":"https://github.com/rizinorg/rizin/blob/6dd0dba9ff4dc706f549d0cdcd93856b49e59aa0/librz/bin/format/mach0/mach0_chained_fixups.c#L200","name":"https://github.com/rizinorg/rizin/blob/6dd0dba9ff4dc706f549d0cdcd93856b49e59aa0/librz/bin/format/mach0/mach0_chained_fixups.c#L200","tags":["x_refsource_MISC"]},{"url":"https://github.com/rizinorg/rizin/releases/tag/v0.8.2","name":"https://github.com/rizinorg/rizin/releases/tag/v0.8.2","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"LOW","baseScore":4.4,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-770","lang":"en","description":"CWE-770: Allocation of Resources Without Limits or Throttling","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-02-02T20:52:23.859Z"},"source":{"advisory":"GHSA-f3v7-xhmj-9cjj","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-02-03T15:37:14.553207Z","id":"CVE-2026-22780","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-02-03T15:37:25.089Z"}}]}}}