CVE-2026-90949
Gimp: gimp: heap-based buffer overflow in psp loader due to selection-channel geometry mismatch
What happened?
A flaw was found in GIMP's PSP (Paint Shop Pro) file loader. When processing a compressed selection channel, a heap-based buffer overflow can occur due to a mismatch between the allocated buffer size and the amount of data decompressed. A remote attacker could exploit this vulnerability by crafting a malicious PSP file. Opening this file in GIMP could lead to a crash or arbitrary code execution.
Affected software and versions
| Software | Version information | Fixed version |
|---|---|---|
| gimpRed Hat | Default status: unknown | See vendor advisory |
| gimpRed Hat | Default status: unaffected | See vendor advisory |
| gimp:2.8/gimpRed Hat | Default status: unaffected | See vendor advisory |
| gimpRed Hat | Default status: unaffected | 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.