CVE-2026-66759

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Source
https://cve.org/CVERecord?id=CVE-2026-66759
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-66759.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-66759
Downstream
Related
Published
2026-07-27T19:12:27.455Z
Modified
2026-08-08T03:32:29.808395337Z
Severity
  • 7.1 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H CVSS Calculator
Summary
Gimp: out-of-bounds read in file-icns plugin causes information disclosure or crash on crafted icns images
Details

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.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/66xxx/CVE-2026-66759.json",
    "cna_assigner": "redhat",
    "unresolved_ranges": [
        {
            "source": "AFFECTED_FIELD",
            "extracted_events": [
                {
                    "introduced": "2.99.14"
                },
                {
                    "fixed": "*"
                }
            ]
        }
    ],
    "cwe_ids": [
        "CWE-125"
    ]
}
References

Affected packages

Git / github.com/gnome/gimp

Affected ranges

Type
GIT
Repo
https://github.com/gnome/gimp
Events
Introduced
6ac8031c9555667e080fef0324fca9f28a02e5ab
Last affected
6987b3853c10517eb581deeb20572fb5f99a7086
Database specific 
{
    "source": "CPE_STRING",
    "cpe": [
        "cpe:2.3:a:gimp:gimp:3.0.8:*:*:*:*:*:*:*",
        "cpe:2.3:a:gimp:gimp:3.2.4:*:*:*:*:*:*:*"
    ],
    "extracted_events": [
        {
            "introduced": "3.0.8"
        },
        {
            "last_affected": "3.0.8"
        },
        {
            "introduced": "3.2.4"
        },
        {
            "last_affected": "3.2.4"
        }
    ]
}

Affected versions

3.*
3.0.8
3.2.4

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-66759.json"

Git / gitlab.gnome.org/gnome/gimp

Affected ranges

Type
GIT
Repo
https://gitlab.gnome.org/gnome/gimp
Events
Introduced
6ac8031c9555667e080fef0324fca9f28a02e5ab
Last affected
6987b3853c10517eb581deeb20572fb5f99a7086
Database specific 
{
    "source": "CPE_STRING",
    "cpe": [
        "cpe:2.3:a:gimp:gimp:3.0.8:*:*:*:*:*:*:*",
        "cpe:2.3:a:gimp:gimp:3.2.4:*:*:*:*:*:*:*"
    ],
    "extracted_events": [
        {
            "introduced": "3.0.8"
        },
        {
            "last_affected": "3.0.8"
        },
        {
            "introduced": "3.2.4"
        },
        {
            "last_affected": "3.2.4"
        }
    ]
}

Affected versions

3.*
3.0.8
3.2.4

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-66759.json"