CVE-2026-6694 Details
Description
A flaw was found in GIMP's file-png plugin. A remote attacker can exploit this by crafting a malicious Animated Portable Network Graphics (APNG) image containing an oversized tRNS chunk. This can lead to a stack-based buffer overflow (CWE-121), causing the file-png plugin to crash and resulting in a Denial of Service (DoS) for the user.
A stack-based buffer overflow vulnerability has been identified in the GIMP file-png plugin. This issue arises when the plugin processes a specially crafted Animated Portable Network Graphics (APNG) image that contains an oversized tRNS chunk. Exploitation of this vulnerability causes the file-png plugin to crash, leading to a denial-of-service condition for the user.
Users are advised to avoid opening or processing untrusted APNG files with GIMP. If the file-png plugin crashes, GIMP can be restarted to regain full functionality.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Aug 3, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2026-6694 | [email protected] | Issue TrackingVendor Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=2459779 | [email protected] | Issue TrackingVendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-120 | Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| redhat enterprise linux | 6.0 7.0 8.0 9.0 |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 4, 2026 | Initial Analysis | [email protected] |
| Aug 3, 2026 | CVE Modified | CISA-ADP |
| Aug 3, 2026 | New CVE Received | [email protected] |