CVE-2026-66758

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Source
https://cve.org/CVERecord?id=CVE-2026-66758
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-66758.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-66758
Downstream
DEBIAN (1)
OESA (3)
openSUSE (2)
RHSA (4)
RLSA (1)
UBUNTU (1)
Related
ALSA (2)
openSUSE (2)
Published
2026-07-27T19:07:12Z
Modified
2026-10-22T02:48:57Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
Summary
Gimp: integer overflow in file-fits plugin causes a heap-based buffer overflow on crafted fits images
Details

A flaw was found in the file-fits plugin in GIMP. When processing a FITS image file, the plugin calculates memory allocation sizes using signed 32-bit integers for width and height. If a crafted file sets both values to large values, their product exceeds 2^31 and overflows, resulting in an undersized heap-based buffer allocation. This integer overflow issue results in a heap-based buffer overflow when cfitsio subsequently writes a full row of pixels in the buffer, causing memory corruption, potentially leading to arbitrary code execution or a denial of service.

Database specific 
{
    "cna_assigner":  "redhat",
    "cwe_ids":  [
        "CWE-190"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/66xxx/CVE-2026-66758.json",
    "unresolved_ranges":  [
        {
            "extracted_events":  [
                {
                    "range":  [
                        {
                            "fixed":  "8100020260824165450.4c9c024f"
                        },
                        {
                            "fixed":  "2:3.0.4-4.el9_8.9"
                        },
                        {
                            "fixed":  "2:2.99.8-4.el9_4.19"
                        },
                        {
                            "fixed":  "2:2.99.8-4.el9_6.20"
                        }
                    ],
                    "source":  "AFFECTED_FIELD",
                    "strategy":  "InverseAffectedRanges"
                }
            ]
        }
    ]
}
References

Affected packages

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
Show details 
{
    "extracted_events":  [
        {
            "cpe":  "cpe:2.3:a:gimp:gimp:3.0.8:*:*:*:*:*:*:*",
            "range":  [
                {
                    "introduced":  "3.0.8"
                },
                {
                    "last_affected":  "3.0.8"
                }
            ],
            "source":  "CPE_STRING"
        },
        {
            "cpe":  "cpe:2.3:a:gimp:gimp:3.2.4:*:*:*:*:*:*:*",
            "range":  [
                {
                    "introduced":  "3.2.4"
                },
                {
                    "last_affected":  "3.2.4"
                }
            ],
            "source":  "CPE_STRING"
        }
    ]
}

Affected versions

3.*
3.0.8
3.2.4

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-66758.json"