CVE-2026-22780
Rizin has a heap overflow on mach0_chained_fixups.c
- State
- Published
- Severity
- 4.4 Medium
- Published
- Feb 2, 2026
- Updated
- Feb 3, 2026
- Reserved
- Jan 9, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 4.4 Medium | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L | GitHub_M |
Weaknesses
- CWE-770 Allocation of Resources Without Limits or Throttling
Affected Products
| Product | Versions |
|---|---|
rizinrizinorg |
|
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
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