CVE-2026-81881
mediumradare2 is a UNIX-like reverse engineering framework and command-line toolset.
Vendor / product: Radare — radare2
radare2 is a UNIX-like reverse engineering framework and command-line toolset. Prior to 6.2.0, radare2's Mach-O Swift field-metadata parser was vulnerable because a relative Swift field pointer could be lower than the field-metadata section base, making subtraction produce a negative logical index. The vulnerability is triggered by parsing Swift type and class metadata from a crafted Mach-O file. The derived index was used to read four bytes immediately before the allocated field-metadata buffer. This can cause incorrect metadata processing or process termination; no attacker-observable memory disclosure has been demonstrated. This issue is fixed in version 6.2.0.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L Affected products
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
References
- https://github.com/radareorg/radare2/commit/1da6e782df220edf56138ef5fe4f33745b04db74 security-advisories@github.com
- https://github.com/radareorg/radare2/issues/26229 security-advisories@github.com
- https://github.com/radareorg/radare2/releases/tag/6.2.0 security-advisories@github.com
- https://github.com/radareorg/radare2/security/advisories/GHSA-q4w7-225g-64j9 security-advisories@github.com