{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-22780", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-01-09T18:27:19.388Z", "datePublished": "2026-02-02T20:52:23.859Z", "dateUpdated": "2026-02-02T20:52:23.859Z"}, "containers": {"cna": {"title": "Rizin has a heap overflow on mach0_chained_fixups.c", "problemTypes": [{"descriptions": [{"cweId": "CWE-770", "lang": "en", "description": "CWE-770: Allocation of Resources Without Limits or Throttling", "type": "CWE"}]}], "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"}}], "references": [{"name": "https://github.com/rizinorg/rizin/security/advisories/GHSA-f3v7-xhmj-9cjj", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/rizinorg/rizin/security/advisories/GHSA-f3v7-xhmj-9cjj"}, {"name": "https://github.com/rizinorg/rizin/issues/5768", "tags": ["x_refsource_MISC"], "url": "https://github.com/rizinorg/rizin/issues/5768"}, {"name": "https://github.com/rizinorg/rizin/pull/5770", "tags": ["x_refsource_MISC"], "url": "https://github.com/rizinorg/rizin/pull/5770"}, {"name": "https://github.com/rizinorg/rizin/commit/41ea75d5b07d9b41b27ae80675cdda65f1b1c989", "tags": ["x_refsource_MISC"], "url": "https://github.com/rizinorg/rizin/commit/41ea75d5b07d9b41b27ae80675cdda65f1b1c989"}, {"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/blob/6dd0dba9ff4dc706f549d0cdcd93856b49e59aa0/librz/bin/format/mach0/mach0_chained_fixups.c#L200"}, {"name": "https://github.com/rizinorg/rizin/releases/tag/v0.8.2", "tags": ["x_refsource_MISC"], "url": "https://github.com/rizinorg/rizin/releases/tag/v0.8.2"}], "affected": [{"vendor": "rizinorg", "product": "rizin", "versions": [{"version": "< 0.8.2", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-02-02T20:52:23.859Z"}, "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."}], "source": {"advisory": "GHSA-f3v7-xhmj-9cjj", "discovery": "UNKNOWN"}}}}

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{"cveTags": [], "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."}], "id": "CVE-2026-22780", "lastModified": "2026-02-02T23:16:06.870", "metrics": {"cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 1.8, "impactScore": 2.5, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-02-02T23:16:06.870", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/rizinorg/rizin/blob/6dd0dba9ff4dc706f549d0cdcd93856b49e59aa0/librz/bin/format/mach0/mach0_chained_fixups.c#L200"}, {"source": "security-advisories@github.com", "url": "https://github.com/rizinorg/rizin/commit/41ea75d5b07d9b41b27ae80675cdda65f1b1c989"}, {"source": "security-advisories@github.com", "url": "https://github.com/rizinorg/rizin/issues/5768"}, {"source": "security-advisories@github.com", "url": "https://github.com/rizinorg/rizin/pull/5770"}, {"source": "security-advisories@github.com", "url": "https://github.com/rizinorg/rizin/releases/tag/v0.8.2"}, {"source": "security-advisories@github.com", "url": "https://github.com/rizinorg/rizin/security/advisories/GHSA-f3v7-xhmj-9cjj"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-770"}], "source": "security-advisories@github.com", "type": "Primary"}]}

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