CVE-2026-84447

HIGHCVSS 7.5

Description

libheif is a HEIF and AVIF file format decoder and encoder. In 1.23.1 and earlier, crafted grid, iovl, and iden reference graphs can repeatedly decode the same base image because processed_ids is copied per branch and ImageItem::decode_image() has no shared operation budget. This vulnerability is fixed in 1.23.2.

Timeline

Published:September 18th, 2026 4:17 PM

Last modified:September 18th, 2026 6:17 PM

CVSS Scoring

CVSS v3: 7.5 (HIGH)

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

Weaknesses (CWE)

CWE-770

References & Reports

Advisories, patches, and third-party reports

https://github.com/strukturag/libheif/commit/30b52a4e829efe0ee6d7208e8500b99f664af5e9
https://github.com/strukturag/libheif/releases/tag/v1.23.2
https://github.com/strukturag/libheif/security/advisories/GHSA-x8xm-cm2c-cfc8
https://github.com/strukturag/libheif/security/advisories/GHSA-x8xm-cm2c-cfc8

Source: NIST NVD · Data may lag official sources by up to one minute