CVE-2026-8696

Description

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.

References

https://www.vulncheck.com/advisories/radare2-use-after-free-via-gdbr-pids-list

https://github.com/radareorg/radare2/issues/25836

https://github.com/radareorg/radare2/commit/c213ad6894a1eb9086ac8bf5fae35757e9e1683c

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3

CVSS v4