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CVE-2026-22780

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Date: February 2, 2026

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.

Severity Score

Related Resources (8)

https://github.com/rizinorg/rizin/pull/5770
https://github.com/rizinorg/rizin/blob/6dd0dba9ff4dc706f549d0cdcd93856b49e59aa0/librz/bin/format/mach0/mach0_chained_fixups.c#L200
https://github.com/rizinorg/rizin/commit/41ea75d5b07d9b41b27ae80675cdda65f1b1c989
https://github.com/rizinorg/rizin/security/advisories/GHSA-f3v7-xhmj-9cjj
https://github.com/rizinorg/rizin/issues/5768
https://nvd.nist.gov/vuln/detail/CVE-2026-22780
https://github.com/rizinorg/rizin/releases/tag/v0.8.2
https://www.mend.io/vulnerability-database/CVE-2026-22780

Severity Score

Weakness Type (CWE)

Allocation of Resources Without Limits or Throttling

CWE-770

Top Fix

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Upgrade Version

Upgrade to version https://github.com/rizinorg/rizin.git - v0.8.2

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CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): LOW
Availability (A): LOW

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