CVE-2026-48029: CWE-125: Out-of-bounds Read in strukturag libheif
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.
AI Analysis
Technical Summary
The vulnerability in libheif, a HEIF and AVIF file format decoder and encoder, involves a heap out-of-bounds read triggered by an integer rotation (irot) that causes tile-coordinate underflow during the decoding of grid tiles in ImageItem_Grid::decode_grid_tile. Affected versions are from 1.19.0 up to and including 1.21.2. The issue is resolved in version 1.22.0. The CVSS 3.1 vector indicates the attack requires network access with low attack complexity, no privileges, but user interaction is required. The impact includes limited confidentiality loss and high impact on availability.
Potential Impact
Successful exploitation of this vulnerability could lead to a heap out-of-bounds read, potentially causing application crashes or denial of service. Confidentiality impact is limited, and there is no integrity impact reported. The vulnerability requires user interaction and network access but no privileges.
Mitigation Recommendations
Upgrade libheif to version 1.22.0 or later, where this vulnerability is fixed. No other official remediation or temporary fixes are documented. Patch status is confirmed by the vendor's versioning information. Until upgrade, avoid processing untrusted HEIF or AVIF files to reduce risk.
CVE-2026-48029: CWE-125: Out-of-bounds Read in strukturag libheif
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.
CVSS v3.1
Score 7.1high
Affected software
pkg:github/strukturag/libheifRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in libheif, a HEIF and AVIF file format decoder and encoder, involves a heap out-of-bounds read triggered by an integer rotation (irot) that causes tile-coordinate underflow during the decoding of grid tiles in ImageItem_Grid::decode_grid_tile. Affected versions are from 1.19.0 up to and including 1.21.2. The issue is resolved in version 1.22.0. The CVSS 3.1 vector indicates the attack requires network access with low attack complexity, no privileges, but user interaction is required. The impact includes limited confidentiality loss and high impact on availability.
Potential Impact
Successful exploitation of this vulnerability could lead to a heap out-of-bounds read, potentially causing application crashes or denial of service. Confidentiality impact is limited, and there is no integrity impact reported. The vulnerability requires user interaction and network access but no privileges.
Mitigation Recommendations
Upgrade libheif to version 1.22.0 or later, where this vulnerability is fixed. No other official remediation or temporary fixes are documented. Patch status is confirmed by the vendor's versioning information. Until upgrade, avoid processing untrusted HEIF or AVIF files to reduce risk.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-05-20T17:44:09.587Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a60d93e9c2644c7f8363a7e
Added to database: 07/22/2026, 14:52:46 UTC
Last enriched: 07/22/2026, 15:07:01 UTC
Last updated: 07/22/2026, 15:37:56 UTC
Views: 6
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.