Out-of-bounds read in radare2 - CVE-2026-81881
Published: August 15, 2026 / Updated: September 23, 2026
Vulnerability identifier: #VU142705
CSH Severity: Low
CVSS v4: 4.6 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-81881
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to out-of-bounds read in the Mach-O Swift field metadata parser when parsing a crafted Swift Mach-O file. A remote attacker can trick the victim into opening a crafted file to cause a denial of service.
The vulnerable path is reached while parsing Swift type and class metadata, and user interaction is required to analyze the crafted file.
Affected software
radare2
How to mitigate CVE-2026-81881
Install security update from vendor's website.
radare2 - update to 6.2.0