CVE-2026-50142

Publication date 2 July 2026

Last updated 25 August 2026

Ubuntu priority

Why this priority?

Cvss 3 Severity Score

Score breakdown

Description

[Unknown description]

Status

Show unmaintained releases

Package	Ubuntu Release	Status
libheif	26.04 LTS resolute	Fixed 1.21.2-3ubuntu0.3
	25.10 questing	Fixed 1.20.2-1ubuntu0.6
	24.04 LTS noble	Not affected
	22.04 LTS jammy	Not affected
	20.04 LTS focal	Not affected
	18.04 LTS bionic	Not affected

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
libheif	Upstream: a6caa38

Severity score breakdown

CVSS version: CVSS v3.0

Base score 7.5 · High

Base metrics

Parameter	Value
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality impact	None
Integrity impact	None
Availability impact	High

Scores

Parameter	Value
Base score	7.5 · High
Exploitability score	-
Impact score	-

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

USN-8526-1
libheif vulnerabilities
9 July 2026

Other references

Access our resources on patching vulnerabilities