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CVE-2026-8696

radare2 6.1.5 Use-After-Free via gdbr_pids_list()

Published: May 15, 2026Updated: May 19, 2026 Sources: CVE List NVDCWE-416
NVD MITRE
7.5CVSSHIGH
EPSS Score
0.6%
Top 55.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-416

Affected Products

radare2radare2
On-prem
DevTools & CI / build-test-tools
radare2radareDevTools & CI
radare2oss-projectDevTools & CIaka radare2
radareoss-projectDevTools & CI

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://github.com/radareorg/radare2/issues/25836
github.com
https://github.com/radareorg/radare2/commit/c213ad6894a1eb9086ac8bf5fae35757e9e1683c
github.com
https://www.vulncheck.com/advisories/radare2-use-after-free-via-gdbr-pids-list
vulncheck.com

Timeline

Published
May 15, 2026
Last Updated
May 19, 2026

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