CVE-2026-81885

Name
CVE-2026-81885
Description
radare2 is a UNIX-like reverse engineering framework and command-line toolset. Prior to 6.2.0, radare2's NE relocation fixup-chain parser was vulnerable because the NE relocation parser followed fixup chains without an active iteration limit or cycle detection. The vulnerability is triggered by opening a crafted NE executable whose in-bounds relocation entry points back to itself instead of reaching 0xffff. The parser repeatedly processed the same relocation and allocated another relocation object on each iteration. This can cause denial of service through continuous CPU and memory consumption. This issue is fixed in version 6.2.0.
NVD Severity
unknown
Other trackers
CVE, NVD, CERT, CVE Details, CIRCL, Arch Linux, Debian, Red Hat, Ubuntu, Gentoo, SUSE (Bugzilla), SUSE (CVE), Mageia
Mailing lists
oss-security, full-disclosure, bugtraq
Exploits
Exploit DB, Metasploit
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
security-advisories@github.com https://github.com/radareorg/radare2/commit/93d794caa7c2f08413106255d49546e544c1f9f0
security-advisories@github.com https://github.com/radareorg/radare2/issues/26225
security-advisories@github.com https://github.com/radareorg/radare2/pull/26192
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-43wr-4j49-rcxj

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:radare:radare2:*:*:*:*:*:*:*:* radare2 >= None < 6.2.0

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
radare2 edge-community 6.1.8-r0 omni <omni+alpine@hack.org> possibly vulnerable
radare2 edge-community 6.1.6-r0 omni <omni+alpine@hack.org> possibly vulnerable
radare2 edge-community 6.1.4-r0 omni <omni+alpine@hack.org> possibly vulnerable
radare2 edge-community 6.1.2-r0 omni <omni+alpine@hack.org> possibly vulnerable
radare2 edge-community 6.0.8-r0 omni <omni+alpine@hack.org> possibly vulnerable
radare2 edge-community 6.0.7-r0 omni <omni+alpine@hack.org> possibly vulnerable
radare2 edge-community 6.0.4-r0 omni <omni+alpine@hack.org> possibly vulnerable
radare2 edge-community 5.9.8-r0 omni <omni+alpine@hack.org> possibly vulnerable
radare2 edge-community 5.8.2-r0 Valery Kartel <valery.kartel@gmail.com> possibly vulnerable
radare2 edge-community 5.8.0-r0 Valery Kartel <valery.kartel@gmail.com> possibly vulnerable
radare2 edge-community 5.7.2-r0 Valery Kartel <valery.kartel@gmail.com> possibly vulnerable
radare2 edge-community 5.7.0-r0 Valery Kartel <valery.kartel@gmail.com> possibly vulnerable
radare2 edge-community 5.6.8-r0 Valery Kartel <valery.kartel@gmail.com> possibly vulnerable
radare2 edge-community 5.6.6-r0 Valery Kartel <valery.kartel@gmail.com> possibly vulnerable
radare2 edge-community 5.6.4-r0 Valery Kartel <valery.kartel@gmail.com> possibly vulnerable
radare2 edge-community 5.6.2-r0 Valery Kartel <valery.kartel@gmail.com> possibly vulnerable
radare2 edge-community 5.6.0-r0 Valery Kartel <valery.kartel@gmail.com> possibly vulnerable
radare2 edge-community 5.5.4-r0 Valery Kartel <valery.kartel@gmail.com> possibly vulnerable
radare2 edge-community 5.5.2-r0 Valery Kartel <valery.kartel@gmail.com> possibly vulnerable
radare2 edge-community 5.4.0-r0 Valery Kartel <valery.kartel@gmail.com> possibly vulnerable
radare2 edge-community 5.3.1-r0 Valery Kartel <valery.kartel@gmail.com> possibly vulnerable
radare2 edge-community 4.5.1-r0 None possibly vulnerable
radare2 edge-community 4.5.0-r0 None possibly vulnerable
radare2 edge-community 4.4.0-r0 None possibly vulnerable
radare2 edge-community 4.0.0-r0 None possibly vulnerable
radare2 edge-community 3.9.0-r0 None possibly vulnerable
radare2 3.24-community 6.1.6-r0 omni <omni+alpine@hack.org> possibly vulnerable