CVE-2026-66759
published 2026-07-27CVE-2026-66759: 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…
PriorityP429high7.1CVSS 3.1
AVLACLPRNUIRSUCHINAH
EPSS
0.30%
22.1th percentile
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.
Affected
9 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| gimp | gimp | — | — |
| gimp | gimp | — | — |
| gimp | gimp | — | — |
| gimp_2.8 | gimp | — | — |
| gnome | gimp | >= 2.99.14 < * | * |
| redhat | enterprise_linux | — | — |
| redhat | enterprise_linux | — | — |
| redhat | enterprise_linux | — | — |
| redhat | enterprise_linux | — | — |
CVSS provenance
nvdv3.17.1HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
vendor_redhat7.1HIGH
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GHSA
A flaw was found in the file-icns plugin in GIMP.
ghsa_unreviewed·2026-07-27
CVE-2026-66759 [HIGH] CWE-125 A flaw was found in the file-icns plugin in GIMP.
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.
Red Hat
gimp: out-of-bounds read in file-icns plugin causes information disclosure or crash on crafted ICNS images
vendor_redhat·2026-07-07·CVSS 7.1
CVE-2026-66759 [HIGH] CWE-125 gimp: out-of-bounds read in file-icns plugin causes information disclosure or crash on crafted ICNS images
gimp: out-of-bounds read in file-icns plugin causes information disclosure or crash on crafted ICNS images
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.
Statement: To exploit this vulnerability, an attacker needs to convince a user to process a specially cra
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2026-66759 gimp: out-of-bounds read in file-icns plugin causes information disclosure or crash on crafted ICNS images [fedora-all]
bugzilla·2026-07-27·CVSS 7.1
CVE-2026-66759 [HIGH] CVE-2026-66759 gimp: out-of-bounds read in file-icns plugin causes information disclosure or crash on crafted ICNS images [fedora-all]
CVE-2026-66759 gimp: out-of-bounds read in file-icns plugin causes information disclosure or crash on crafted ICNS images [fedora-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
A flaw was found in the file-icns plugin in GIMP, affecting versions 2.99.14 and newer. 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 resul
Bugzilla
CVE-2026-66759 gimp: out-of-bounds read in file-icns plugin causes information disclosure or crash on crafted ICNS images
bugzilla·2026-07-27·CVSS 7.1
CVE-2026-66759 [HIGH] CVE-2026-66759 gimp: out-of-bounds read in file-icns plugin causes information disclosure or crash on crafted ICNS images
CVE-2026-66759 gimp: out-of-bounds read in file-icns plugin causes information disclosure or crash on crafted ICNS images
A flaw was found in the file-icns plugin in GIMP, affecting versions 2.99.14 and newer. 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.
2026-07-27
Published