CVE-2026-81880

radare2 is a UNIX-like reverse engineering framework and command-line toolset. Prior to 6.2.0, radare2's Apple Preferred Executable Format loader was vulnerable because the PEF loader accepted relocSecCount values that were not bounded by the number of sections or complete relocation records in the input. The vulnerability is triggered by normal binary-format auto-detection of a small crafted Apple PEF file. The loader could perform up to 268,435,456 relocation-section iterations and repeated buffer operations after record offsets passed the end of the file. This can cause denial of service through excessive CPU consumption and prolonged processing. This issue is fixed in version 6.2.0.
Configurations

Configuration 1 (hide)

cpe:2.3:a:radare:radare2:*:*:*:*:*:*:*:*

History

25 Sep 2026, 16:51

Type Values Removed Values Added
First Time Radare
Radare radare2
CPE cpe:2.3:a:radare:radare2:*:*:*:*:*:*:*:*
References () https://github.com/radareorg/radare2/commit/87c780e29ee6251cebaab51585d14482cb7740ac - () https://github.com/radareorg/radare2/commit/87c780e29ee6251cebaab51585d14482cb7740ac - Patch
References () https://github.com/radareorg/radare2/releases/tag/6.2.0 - () https://github.com/radareorg/radare2/releases/tag/6.2.0 - Release Notes
References () https://github.com/radareorg/radare2/security/advisories/GHSA-fg6f-rj8g-25pq - () https://github.com/radareorg/radare2/security/advisories/GHSA-fg6f-rj8g-25pq - Vendor Advisory

22 Sep 2026, 16:18

Type Values Removed Values Added
New CVE

Information

Published : 2026-09-22 16:18

Updated : 2026-09-26 00:16


NVD link : CVE-2026-81880

Mitre link : CVE-2026-81880

CVE.ORG link : CVE-2026-81880


JSON object : View

Products Affected

radare

  • radare2
CWE
CWE-400

Uncontrolled Resource Consumption

CWE-834

Excessive Iteration