---
title: "CVE-2026-5316\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-2026-5316?format=md
keywords: index, follow
---

# CVE-2026-5316

Publication date 2 April 2026

Last updated 10 July 2026

---

Ubuntu priority

**Medium**

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

## Cvss 3 Severity Score

**4.3 · Medium**

[Score breakdown](https://ubuntu.com/security/CVE-2026-5316?format=md#impact-score)

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## Description

A vulnerability was identified in Nothings stb up to 1.22. The impacted
element is the function setup\_free of the file stb\_vorbis.c. The
manipulation leads to allocation of resources. The attack is possible to be
carried out remotely. The exploit is publicly available and might be used.
The vendor was contacted early about this disclosure but did not respond in
any way.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| libstb | 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 | Needs evaluation |
| 20.04 LTS focal | 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-2026-5316?format=md)
[CVSS v3.0](https://ubuntu.com/security/CVE-2026-5316?format=md)

**Base score**

2.1 · Low

* Base metrics

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

  | Parameter | Value |
  | --- | --- |
  | Base score | 2.1 · Low |
  | Base + Threat score | - |
  | Base + Environmental score | - |
  | Base + Threat + Environmental score | - |

**Vector:** CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-5316)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2026-5316)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2026-5316)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2026-5316)

### Other references

* <https://www.cve.org/CVERecord?id=CVE-2026-5316>
* <https://gist.github.com/d0razi/cc7f70bba08c1a455d9933e97b8b57c1>
* <https://vuldb.com/submit/780560>
* <https://vuldb.com/vuln/354648>
* <https://vuldb.com/vuln/354648/cti>