CVE-2026-90948
Gimp: gimp: heap-based buffer overflow in ico loader via integer overflow in embedded png dimensions
What happened?
A flaw was found in GIMP's ICO file loader. When processing an ICO file containing an embedded PNG image, an integer overflow can occur during the calculation of the required buffer size. This leads to an undersized buffer being allocated, causing a heap-based buffer overflow when the decoded pixel data is written. A remote attacker could exploit this by crafting a malicious ICO file, which, when opened, could lead to arbitrary code execution or a crash.
Affected software and versions
| Software | Version information | Fixed version |
|---|---|---|
| gimp:2.8Red Hat | unaffected: 8100020261015094823.4c9c024f to < * | See vendor advisory |
| gimpRed Hat | unaffected: 2:3.0.4-4.el9_8.14 to < * | See vendor advisory |
| gimpRed Hat | unaffected: 2:2.99.8-4.el9_2.7 to < * | See vendor advisory |
| gimpRed Hat | Default status: unknown | See vendor advisory |
| gimpRed Hat | Default status: affected | See vendor advisory |
Version information comes from the source record and can include unaffected products and exceptions. Distribution packages may contain backported fixes: an older upstream version alone does not prove a server is affected.
Is it being exploited?
This CVE was not listed in the CISA catalogue at our last retrieval. This does not establish that exploitation is absent.
How to respond
- Confirm the product, installed package version, and any configuration requirements in the vendor advisory.
- Follow the vendor’s remediation or workaround guidance in the references below. Structured fixed-version data is unavailable here; the publisher’s description may include a fix or workaround.
- Restart affected services if required, then verify the running version. Known exploitation may warrant investigation as well as patching.
Sources and remediation references
- https://www.cve.org/CVERecord?id=CVE-2026-90948
- https://access.redhat.com/errata/RHSA-2026:75575
- https://access.redhat.com/errata/RHSA-2026:84744
- https://access.redhat.com/errata/RHSA-2026:93589
- https://access.redhat.com/security/cve/CVE-2026-90948
- https://bugzilla.redhat.com/show_bug.cgi?id=2533008
- https://gitlab.gnome.org/GNOME/gimp/-/work_items/16742