---
title: "CVE-2026-6491\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-2026-6491?format=md
keywords: index, follow
---

# CVE-2026-6491

Publication date 17 April 2026

Last updated 10 July 2026

---

Ubuntu priority

**Medium**

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

## Cvss 3 Severity Score

**5.3 · Medium**

[Score breakdown](https://ubuntu.com/security/CVE-2026-6491?format=md#impact-score)

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## Description

A security vulnerability has been detected in libvips up to 8.18.2. The
affected element is the function im\_minpos\_vec of the file
libvips/deprecated/vips7compat.c of the component nip2 Handler. Such
manipulation of the argument n leads to heap-based buffer overflow. An
attack has to be approached locally. The exploit has been disclosed
publicly and may be used. The vendor confirms that they will "be removing
the deprecated area in libvips 8.19".

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| vips | 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 |
| 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-2026-6491?format=md)
[CVSS v3.0](https://ubuntu.com/security/CVE-2026-6491?format=md)

**Base score**

1.9 · Low

* Base metrics

  | Parameter | Value |
  | --- | --- |
  | Attack vector | Local |
  | Attack complexity | Low |
  | Attack requirements | None |
  | Privileges required | Low |
  | User interaction | None |
  | Vulnerable system - Confidentiality impact | Low |
  | Vulnerable system - Integrity impact | Low |
  | 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 | 1.9 · Low |
  | Base + Threat score | - |
  | Base + Environmental score | - |
  | Base + Threat + Environmental score | - |

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

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-6491)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2026-6491)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2026-6491)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2026-6491)

### Other references

* <https://www.cve.org/CVERecord?id=CVE-2026-6491>
* <https://github.com/libvips/libvips/issues/4965>