CVE-2026-8696 HIGH

CVE-2026-8696: radare2 6.1.5 Use-After-Free via gdbr_pids_list()

Vendor Radare2
Product radare2
Weakness CWE-416
Published May 15, 2026
Last update May 19, 2026

CVSS base score

8.7/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

radare2 6.1.5 contains a use-after-free vulnerability in the gdbr_pids_list() function within the GDB client core that allows remote attackers to cause a denial of service or potentially execute arbitrary code by sending malformed thread information responses. Attackers can trigger the vulnerability by causing qsThreadInfo to fail after qfThreadInfo successfully allocates RDebugPid structures, resulting in double-free memory corruption when the error path attempts to clean up the list.

Key dates

02Disclosure timeline

May 15, 2026 CVE published
May 19, 2026 Record updated