CVE-2026-48029 Details
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.
A heap out-of-bounds read vulnerability has been identified in libheif, a library for decoding and encoding HEIF and AVIF file formats. This vulnerability affects versions 1.19.0 through 1.21.2. The issue arises in the ImageItem_Grid::decode_grid_tile function, where tile-coordinate underflow, induced by irot rotation properties, leads to the out-of-bounds read. The vulnerability can be exploited when an HEIF/HEIC file contains a 'grid' derived item with specific rotation properties and is processed through the tile decoding functions.
Users can upgrade to libheif version 1.22.0, which addresses the vulnerability by fixing the tile coordinate validation in rotated images.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jul 22, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/strukturag/libheif/security/advisories/GHSA-6x5f-qchq-cxqv | CISA-ADP | MitigationVendor AdvisoryExploit |
| https://github.com/strukturag/libheif/commit/e523ec0bf379110b7c33d4c159f8b1202d332157 | [email protected] | Patch |
| https://github.com/strukturag/libheif/security/advisories/GHSA-6x5f-qchq-cxqv | [email protected] | MitigationVendor AdvisoryExploit |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-125 | Out-of-bounds Read | [email protected] |
| CWE-191 | Integer Underflow (Wrap or Wraparound) | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| struktur libheif | >= 1.19.0, < 1.22.0 |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Aug 6, 2026 | Initial Analysis | [email protected] |
| Jul 22, 2026 | CVE Modified | CISA-ADP |
| Jul 22, 2026 | New CVE Received | [email protected] |