CVE-2026-66759
HIGH
MEDIUM
Priority: 0.02
BB Relevance:
39/100
Published: 2026-07-27
Modified: 2026-11-05
First seen: 2026-11-05
Status: active
Attack Surface
Low Complexity
No Auth
Conf. Impact
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
None
UI:
Required
S:
Unchanged
C:
High
I:
None
A:
High
Description
A flaw was found in the file-icns plugin in GIMP. When applying a decompressed mask during ICNS image processing, the plugin reads from the mask data buffer without verifying if the cursor exceeds the allocated resource size. If a crafted file contains a truncated mask resource, the icns_decompress function continues reading past the bounds of the buffer. This out-of-bounds read vulnerability results in information disclosure of heap contents, where memory contents are leaked as alpha channel pixel values, or a crash leading to a denial of service if unmapped memory is accessed.
Weakness Classification (1)
Affected Software (7)
| Vendor | Product | Version |
|---|---|---|
| GNOME | GIMP | 2.99.14 < * |
| gimp | gimp | 3.0.8 |
| gimp | gimp | 3.2.4 |
| redhat | enterprise_linux | 6.0 |
| redhat | enterprise_linux | 7.0 |
| redhat | enterprise_linux | 8.0 |
| redhat | enterprise_linux | 9.0 |
References & Advisories (4)
vendor-advisory
x_refsource_REDHAT
vdb-entry
x_refsource_REDHAT
issue-tracking
x_refsource_REDHAT