Vulnerability-Lookup

CVE-2026-66759 (GCVE-0-2026-66759)

Vulnerability from cvelistv5 – Published: 2026-07-27 19:12 – Updated: 2026-07-27 19:26

Title

Gimp: out-of-bounds read in file-icns plugin causes information disclosure or crash on crafted icns images

Summary

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.

Severity

7.1 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-125 - Out-of-bounds Read

Assigner

redhat

References

3 references

URL	Tags
https://access.redhat.com/security/cve/CVE-2026-66759	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2507557	issue-trackingx_refsource_REDHAT
https://gitlab.gnome.org/GNOME/gimp/-/issues/16528

Impacted products

4 products

Vendor	Product	Version
Red Hat	Red Hat Enterprise Linux 6	cpe:/o:redhat:enterprise_linux:6
Red Hat	Red Hat Enterprise Linux 7	cpe:/o:redhat:enterprise_linux:7
Red Hat	Red Hat Enterprise Linux 8	cpe:/o:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux 9	cpe:/o:redhat:enterprise_linux:9

Date Public

2026-07-07 00:00

Credits

Red Hat would like to thank Tristan Madani for reporting this issue.

Show details on NVD website

JSON

To clipboard

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GHSA-2GMH-5658-RRQ3

Vulnerability from github – Published: 2026-07-27 21:31 – Updated: 2026-07-27 21:31

Details

Severity

7.1 (High)


                  
                    CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H

Show details on source website

JSON

To clipboard

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  ],
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    "github_reviewed_at": null,
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  },
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  "id": "GHSA-2gmh-5658-rrq3",
  "modified": "2026-07-27T21:31:21Z",
  "published": "2026-07-27T21:31:21Z",
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ubuntu-cve-2026-66759

Vulnerability from osv_ubuntu

Published

2026-07-27 19:17

Modified

2026-07-29 08:01

Summary

Details

Severity

7.1 (High)


                    
                      CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2026-66759	REPORT
	https://www.cve.org/CVERecord?id=CVE-2026-66759	REPORT
	https://gitlab.gnome.org/GNOME/gimp/-/issues/16528	REPORT

JSON

To clipboard

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        "2.10.14-2ubuntu1",
        "2.10.14-3",
        "2.10.18-1",
        "2.10.18-1ubuntu0.1",
        "2.10.18-1ubuntu0.1+esm1",
        "2.10.18-1ubuntu0.1+esm2",
        "2.10.18-1ubuntu0.1+esm3"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "gimp",
            "binary_version": "2.10.30-1ubuntu0.1+esm3"
          },
          {
            "binary_name": "gimp-data",
            "binary_version": "2.10.30-1ubuntu0.1+esm3"
          },
          {
            "binary_name": "libgimp2.0",
            "binary_version": "2.10.30-1ubuntu0.1+esm3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:22.04:LTS",
        "name": "gimp",
        "purl": "pkg:deb/ubuntu/gimp@2.10.30-1ubuntu0.1+esm3?arch=source\u0026distro=esm-apps/jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.10.24-2",
        "2.10.28-1",
        "2.10.30-1",
        "2.10.30-1build1",
        "2.10.30-1ubuntu0.1",
        "2.10.30-1ubuntu0.1+esm1",
        "2.10.30-1ubuntu0.1+esm2",
        "2.10.30-1ubuntu0.1+esm3"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "gimp",
            "binary_version": "2.10.36-3ubuntu0.24.04.1+esm3"
          },
          {
            "binary_name": "gimp-data",
            "binary_version": "2.10.36-3ubuntu0.24.04.1+esm3"
          },
          {
            "binary_name": "libgimp2.0t64",
            "binary_version": "2.10.36-3ubuntu0.24.04.1+esm3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:24.04:LTS",
        "name": "gimp",
        "purl": "pkg:deb/ubuntu/gimp@2.10.36-3ubuntu0.24.04.1+esm3?arch=source\u0026distro=esm-apps/noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.10.34-1",
        "2.10.36-1",
        "2.10.36-2",
        "2.10.36-3build2",
        "2.10.36-3build3",
        "2.10.36-3ubuntu0.24.04.1",
        "2.10.36-3ubuntu0.24.04.1+esm1",
        "2.10.36-3ubuntu0.24.04.1+esm2",
        "2.10.36-3ubuntu0.24.04.1+esm3"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "gimp",
            "binary_version": "3.2.2-1"
          },
          {
            "binary_name": "gimp-data",
            "binary_version": "3.2.2-1"
          },
          {
            "binary_name": "gir1.2-gimp-3.0",
            "binary_version": "3.2.2-1"
          },
          {
            "binary_name": "libgimp-3.0-0",
            "binary_version": "3.2.2-1"
          },
          {
            "binary_name": "libgimp-3.0-bin",
            "binary_version": "3.2.2-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "gimp",
        "purl": "pkg:deb/ubuntu/gimp@3.2.2-1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.0.4-6.1",
        "3.0.4-6.2",
        "3.0.6-1",
        "3.2.0~RC2-2",
        "3.2.0~RC2-3",
        "3.2.0~RC2-3.1",
        "3.2.0~RC2-3.2",
        "3.2.0~RC2-3.3",
        "3.2.0~RC3-1",
        "3.2.0-1",
        "3.2.2-1"
      ]
    }
  ],
  "aliases": [],
  "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.",
  "id": "UBUNTU-CVE-2026-66759",
  "modified": "2026-07-29T08:01:44Z",
  "published": "2026-07-27T19:17:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-66759"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-66759"
    },
    {
      "type": "REPORT",
      "url": "https://gitlab.gnome.org/GNOME/gimp/-/issues/16528"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-66759"
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.

Action not permitted

CVE-2026-66759 (GCVE-0-2026-66759)

GHSA-2GMH-5658-RRQ3

ubuntu-cve-2026-66759

Vulnerability from osv_ubuntu

Tags

Sightings

Nomenclature