CVE-2026-48029
libheif: heap OOB read in ImageItem_Grid::decode_grid_tile via irot-induced tile-coordinate underflow
Description
libheif is a HEIF and AVIF file format decoder and encoder. Versions 1.19.0 through 1.21.2 have a heap OOB read in ImageItem_Grid::decode_grid_tile via irot-induced tile-coordinate underflow. Version 1.22.0 fixes the issue.
INFO
Published Date :
July 22, 2026, 3:17 p.m.
Last Modified :
Aug. 6, 2026, 12:56 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Update libheif to version 1.22.0.
- Apply the patch for libheif version 1.22.0.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-48029.
| URL | Resource |
|---|---|
| https://github.com/strukturag/libheif/commit/e523ec0bf379110b7c33d4c159f8b1202d332157 | Patch |
| https://github.com/strukturag/libheif/security/advisories/GHSA-6x5f-qchq-cxqv | Mitigation Vendor Advisory Exploit |
| https://github.com/strukturag/libheif/security/advisories/GHSA-6x5f-qchq-cxqv | Mitigation Vendor Advisory Exploit |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-48029 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-48029
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-48029 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-48029 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Aug. 06, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:struktur:libheif:*:*:*:*:*:*:*:* versions from (including) 1.19.0 up to (excluding) 1.22.0 Added Reference Type GitHub, Inc.: https://github.com/strukturag/libheif/commit/e523ec0bf379110b7c33d4c159f8b1202d332157 Types: Patch Added Reference Type GitHub, Inc.: https://github.com/strukturag/libheif/security/advisories/GHSA-6x5f-qchq-cxqv Types: Exploit, Mitigation, Vendor Advisory Added Reference Type CISA-ADP: https://github.com/strukturag/libheif/security/advisories/GHSA-6x5f-qchq-cxqv Types: Exploit, Mitigation, Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jul. 22, 2026
Action Type Old Value New Value Added Reference https://github.com/strukturag/libheif/security/advisories/GHSA-6x5f-qchq-cxqv Added SSVC {'id': 'CVE-2026-48029', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-07-22T15:20:15.371762Z'} -
New CVE Received by [email protected]
Jul. 22, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'strukturag', 'product': 'libheif', 'versions': [{'status': 'affected', 'version': '>= 1.19.0, < 1.22.0'}]}] Added Description libheif is a HEIF and AVIF file format decoder and encoder. Versions 1.19.0 through 1.21.2 have a heap OOB read in ImageItem_Grid::decode_grid_tile via irot-induced tile-coordinate underflow. Version 1.22.0 fixes the issue. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H Added CWE CWE-125 Added CWE CWE-191 Added Reference https://github.com/strukturag/libheif/commit/e523ec0bf379110b7c33d4c159f8b1202d332157 Added Reference https://github.com/strukturag/libheif/security/advisories/GHSA-6x5f-qchq-cxqv