Stack Overread Vulnerability in GIMP File-Pix Plugin
CVE-2026-78475

6.1MEDIUM

Key Information:

Vendor

Red Hat
Status
Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 9
Vendor
CVE Published:
24 August 2026

What is CVE-2026-78475?

A security flaw has been identified in the file-pix plugin of GIMP, where a specially crafted PIX image file prompts the plugin to create a Variable-Length Array (VLA) on the stack improperly, leading to unbounded stack allocation. This mismanagement may result in a 21-byte stack over-read, causing potential denial of service through stack exhaustion and the inadvertent exposure of stack memory contents into an intermediate file. Users of the affected versions should apply available patches to mitigate this issue.

References

https://access.redhat.com/security/cve/CVE-2026-78475
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2522072
issue-trackingx_refsource_REDHAT
https://gitlab.gnome.org/GNOME/gimp/-/work_items/16580

CVSS V3.1

Score:
6.1
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Red Hat would like to thank Zhixi "Jace" Sun for reporting this issue.
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