A flaw was found in GIMP's ICO file loader. (CVE-2026-90948)
Description
A heap-based buffer overflow vulnerability exists in GIMP's ICO file loader due to an integer overflow when processing ICO files with embedded PNG images. This flaw can lead to arbitrary code execution or application crashes if a malicious ICO file is opened.
CVSS v3.1
Score 7.8high
Affected software
pkg:deb/ubuntu/gimp?arch=source&distro=esm-apps/xenialpkg:deb/ubuntu/gimp?arch=source&distro=esm-apps/bionicpkg:deb/ubuntu/gimp?arch=source&distro=esm-apps/focalpkg:deb/ubuntu/gimp?arch=source&distro=esm-apps/jammypkg:deb/ubuntu/gimp?arch=source&distro=esm-apps/noblepkg:deb/ubuntu/gimp?arch=source&distro=stonkingpkg:deb/ubuntu/gimp?arch=source&distro=resoluteRun 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
CVE-2026-90948 describes a vulnerability in GIMP's ICO file loader where an integer overflow occurs during the calculation of the buffer size needed to decode embedded PNG images within ICO files. This results in an undersized buffer allocation, causing a heap-based buffer overflow when pixel data is written. A remote attacker can exploit this by crafting a malicious ICO file that triggers this overflow, potentially leading to arbitrary code execution or a crash of the application.
Potential Impact
Successful exploitation allows a remote attacker to execute arbitrary code or cause a denial of service (application crash) by opening a specially crafted ICO file in GIMP. The vulnerability affects confidentiality, integrity, and availability of the affected system.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, avoid opening untrusted ICO files containing embedded PNG images in GIMP.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- UBUNTU-CVE-2026-90948
- Osv Schema Version
- 1.7.0
- Ecosystems
- ["Ubuntu:Pro:16.04:LTS","Ubuntu:Pro:18.04:LTS","Ubuntu:Pro:20.04:LTS","Ubuntu:Pro:22.04:LTS","Ubuntu:Pro:24.04:LTS","Ubuntu:26.10","Ubuntu:26.04:LTS"]
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ad3f5322cdf04f6566585e9
Added to database: 10/17/2026, 22:22:42 UTC
Last enriched: 10/17/2026, 23:14:07 UTC
Last updated: 10/17/2026, 23:14:07 UTC
Views: 2
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