ubuntu-cve-2026-27809
Vulnerability from osv_ubuntu
Published
2026-02-26 00:16
Modified
2026-05-20 15:26
Summary
Details

psd-tools is a Python package for working with Adobe Photoshop PSD files. Prior to version 1.12.2, when a PSD file contains malformed RLE-compressed image data (e.g. a literal run that extends past the expected row size), decode_rle() raises ValueError which propagated all the way to the user, crashing psd.composite() and psd-tools export. decompress() already had a fallback that replaces failed channels with black pixels when result is None, but it never triggered because the ValueError from decode_rle() was not caught. The fix in version 1.12.2 wraps the decode_rle() call in a try/except so the existing fallback handles the error gracefully.

Severity
6.8 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:U
9.1 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "python3-psd-tools",
            "binary_version": "1.9.30+dfsg.1-1build1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "psd-tools",
        "purl": "pkg:deb/ubuntu/psd-tools@1.9.30+dfsg.1-1build1?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.9.28+dfsg.1-1",
        "1.9.28+dfsg.1-1build1",
        "1.9.30+dfsg.1-1",
        "1.9.30+dfsg.1-1build1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "python3-psd-tools",
            "binary_version": "1.10.7+dfsg.1-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "psd-tools",
        "purl": "pkg:deb/ubuntu/psd-tools@1.10.7+dfsg.1-1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.9.34+dfsg.1-1build2",
        "1.10.7+dfsg.1-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "python3-psd-tools",
            "binary_version": "1.12.1+dfsg.1-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "psd-tools",
        "purl": "pkg:deb/ubuntu/psd-tools@1.12.1+dfsg.1-1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.10.7+dfsg.1-1",
        "1.10.7+dfsg.1-1build1",
        "1.10.9+dfsg.1-1",
        "1.12.0+dfsg.1-1",
        "1.12.1+dfsg.1-1"
      ]
    }
  ],
  "aliases": [],
  "details": "psd-tools is a Python package for working with Adobe Photoshop PSD files. Prior to version 1.12.2, when a PSD file contains malformed RLE-compressed image data (e.g. a literal run that extends past the expected row size), decode_rle() raises ValueError which propagated all the way to the user, crashing psd.composite() and psd-tools export. decompress() already had a fallback that replaces failed channels with black pixels when result is None, but it never triggered because the ValueError from decode_rle() was not caught. The fix in version 1.12.2 wraps the decode_rle() call in a try/except so the existing fallback handles the error gracefully.",
  "id": "UBUNTU-CVE-2026-27809",
  "modified": "2026-05-20T15:26:07Z",
  "published": "2026-02-26T00:16:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-27809"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-27809"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/psd-tools/psd-tools/commit/6c0a78f195b5942757886a1863793fd5946c1fb1"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/psd-tools/psd-tools/releases/tag/v1.12.2"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/psd-tools/psd-tools/security/advisories/GHSA-24p2-j2jr-386w"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:U",
      "type": "CVSS_V4"
    },
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-27809"
  ]
}



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