Unrated severityOSV Advisory· Published Feb 2, 2026· Updated Feb 3, 2026
Rizin has a heap overflow on mach0_chained_fixups.c
CVE-2026-22780
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.
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Affected products
3Patches
Vulnerability mechanics
References
6- github.com/rizinorg/rizin/blob/6dd0dba9ff4dc706f549d0cdcd93856b49e59aa0/librz/bin/format/mach0/mach0_chained_fixups.cmitrex_refsource_MISC
- github.com/rizinorg/rizin/commit/41ea75d5b07d9b41b27ae80675cdda65f1b1c989mitrex_refsource_MISC
- github.com/rizinorg/rizin/issues/5768mitrex_refsource_MISC
- github.com/rizinorg/rizin/pull/5770mitrex_refsource_MISC
- github.com/rizinorg/rizin/releases/tag/v0.8.2mitrex_refsource_MISC
- github.com/rizinorg/rizin/security/advisories/GHSA-f3v7-xhmj-9cjjmitrex_refsource_CONFIRM
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