---
title: "CVE-2026-8696\n    | Ubuntu"
description: Ubuntu is an open source software operating system that runs from the
  desktop, to the cloud, to all your internet connected things.
url: https://ubuntu.com/security/CVE-2026-8696?format=md
keywords: index, follow
---

# CVE-2026-8696

Publication date 15 May 2026

Last updated 10 July 2026

---

Ubuntu priority

**Medium**

[Why this priority?](https://ubuntu.com/security/cves/about#priority )

## Cvss 3 Severity Score

**7.5 · High**

[Score breakdown](https://ubuntu.com/security/CVE-2026-8696?format=md#impact-score)

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## 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.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| radare2 | 26.04 LTS resolute | Needs evaluation |
| 25.10 questing | Ignored end of life, was needs-triage |
| 24.04 LTS noble | Needs evaluation |
| 22.04 LTS jammy | Not in release |
| 20.04 LTS focal | Needs evaluation |
| 18.04 LTS bionic | Needs evaluation |
| 16.04 LTS xenial | Needs evaluation |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)

## Severity score breakdown

CVSS version:

CVSS v4.0

[CVSS v4.0](https://ubuntu.com/security/CVE-2026-8696?format=md)
[CVSS v3.0](https://ubuntu.com/security/CVE-2026-8696?format=md)

**Base score**

8.7 · High

* Base metrics

  | Parameter | Value |
  | --- | --- |
  | Attack vector | Network |
  | Attack complexity | Low |
  | Attack requirements | None |
  | Privileges required | None |
  | User interaction | None |
  | Vulnerable system - Confidentiality impact | None |
  | Vulnerable system - Integrity impact | None |
  | Vulnerable system - Availability impact | High |
  | Subsequent system - Confidentiality impact | None |
  | Subsequent system - Integrity impact | None |
  | Subsequent system - Availability impact | None |
* Scores

  | Parameter | Value |
  | --- | --- |
  | Base score | 8.7 · High |
  | Base + Threat score | - |
  | Base + Environmental score | - |
  | Base + Threat + Environmental score | - |

**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

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-8696)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2026-8696)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2026-8696)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2026-8696)

### Other references

* <https://www.cve.org/CVERecord?id=CVE-2026-8696>
* <https://github.com/radareorg/radare2/issues/25836>
* <https://github.com/radareorg/radare2/commit/c213ad6894a1eb9086ac8bf5fae35757e9e1683c>
* <https://www.vulncheck.com/advisories/radare2-use-after-free-via-gdbr-pids-list>