CVE-2026-81884

NameCVE-2026-81884
Descriptionradare2 is a UNIX-like reverse engineering framework and command-line toolset. Prior to 6.2.0, radare2's Mach-O LC_DATA_IN_CODE parser was vulnerable because the Mach-O LC_DATA_IN_CODE parser trusted dataoff and datasize and allowed a final partial record to be processed. The vulnerability is triggered by opening a crafted Mach-O file while the non-default bin.verbose option is enabled. When datasize was not a multiple of data_in_code_entry, the last iteration read beyond the allocated buffer. This can cause a heap out-of-bounds read and possible process termination; no attacker-observable memory disclosure has been demonstrated. This issue is fixed in version 6.2.0.
SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
radare2 (PTS)sid6.1.8+ds-1vulnerable

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
radare2source(unstable)(unfixed)

Notes

https://github.com/radareorg/radare2/security/advisories/GHSA-c2g2-2mc7-3x5w
https://github.com/radareorg/radare2/issues/26226
https://github.com/radareorg/radare2/pull/26193
Fixed by: https://github.com/radareorg/radare2/commit/a73de09fea7516f65c14917d66113316ec7e7d6e (6.2.0)

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