CVE-2026-82343
Gimp: heap out-of-bounds read and stack out-of-bounds access in psd loader from channel-count handling
What happened?
A flaw was found in the file-psd plugin in GIMP. When processing a specially crafted PSD image file, the plugin does not properly validate the channel-count parameter. This incorrect validation leads to improper memory bounds checking, resulting in both a heap out-of-bounds read and a stack out-of-bounds access. This issue can result in an application crash, leading to a denial of service or a limited information disclosure of memory contents.
Affected software and versions
| Software | Version information | Fixed version |
|---|---|---|
| gimpGNOME | Default status: affected | See vendor advisory |
| gimpRed Hat | Default status: unknown | See vendor advisory |
| gimpRed Hat | Default status: affected | See vendor advisory |
| gimp:2.8/gimpRed Hat | Default status: affected | 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.