ubuntu-cve-2026-7233
Vulnerability from osv_ubuntu
Published
2026-04-28 07:16
Modified
2026-05-20 15:24
Summary
Details

A vulnerability was determined in Artifex MuPDF up to 1.28.0. The impacted element is the function fz_subset_cff_for_gids of the file subset-cff.c of the component CFF Index Handler. This manipulation causes out-of-bounds read. The attack can only be executed locally. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through a bug report but has not responded yet.

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

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "mupdf",
            "binary_version": "1.7a-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "mupdf-tools",
            "binary_version": "1.7a-1ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "mupdf",
        "purl": "pkg:deb/ubuntu/mupdf@1.7a-1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.7-1",
        "1.7a-1",
        "1.7a-1ubuntu0.1~esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "mupdf",
            "binary_version": "1.12.0+ds1-1ubuntu0.1~esm2"
          },
          {
            "binary_name": "mupdf-tools",
            "binary_version": "1.12.0+ds1-1ubuntu0.1~esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "mupdf",
        "purl": "pkg:deb/ubuntu/mupdf@1.12.0+ds1-1ubuntu0.1~esm2?arch=source\u0026distro=esm-apps/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.11+ds1-1.1",
        "1.11+ds1-2",
        "1.12.0+ds1-1",
        "1.12.0+ds1-1ubuntu0.1~esm1",
        "1.12.0+ds1-1ubuntu0.1~esm2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "mupdf",
            "binary_version": "1.16.1+ds1-1ubuntu1+esm2"
          },
          {
            "binary_name": "mupdf-tools",
            "binary_version": "1.16.1+ds1-1ubuntu1+esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "mupdf",
        "purl": "pkg:deb/ubuntu/mupdf@1.16.1+ds1-1ubuntu1+esm2?arch=source\u0026distro=esm-apps/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.15.0+ds1-1",
        "1.16.1+ds1-1ubuntu1",
        "1.16.1+ds1-1ubuntu1+esm1",
        "1.16.1+ds1-1ubuntu1+esm2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "mupdf",
            "binary_version": "1.19.0+ds1-2ubuntu0.1~esm1"
          },
          {
            "binary_name": "mupdf-tools",
            "binary_version": "1.19.0+ds1-2ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:22.04:LTS",
        "name": "mupdf",
        "purl": "pkg:deb/ubuntu/mupdf@1.19.0+ds1-2ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.17.0+ds1-2",
        "1.19.0+ds1-1",
        "1.19.0+ds1-1build1",
        "1.19.0+ds1-2",
        "1.19.0+ds1-2ubuntu0.1~esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "mupdf",
            "binary_version": "1.23.10+ds1-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "mupdf-tools",
            "binary_version": "1.23.10+ds1-1ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:24.04:LTS",
        "name": "mupdf",
        "purl": "pkg:deb/ubuntu/mupdf@1.23.10+ds1-1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.22.2+ds1-2",
        "1.22.2+ds1-2build1",
        "1.23.6+ds1-1",
        "1.23.7+ds1-1",
        "1.23.10+ds1-1",
        "1.23.10+ds1-1build1",
        "1.23.10+ds1-1build2",
        "1.23.10+ds1-1build3",
        "1.23.10+ds1-1ubuntu0.1~esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libmupdf25.1",
            "binary_version": "1.25.1+ds1-7"
          },
          {
            "binary_name": "mupdf",
            "binary_version": "1.25.1+ds1-7"
          },
          {
            "binary_name": "mupdf-tools",
            "binary_version": "1.25.1+ds1-7"
          },
          {
            "binary_name": "python3-mupdf",
            "binary_version": "1.25.1+ds1-7"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "mupdf",
        "purl": "pkg:deb/ubuntu/mupdf@1.25.1+ds1-7?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.25.1+ds1-5build2",
        "1.25.1+ds1-6",
        "1.25.1+ds1-7"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libmupdf27.0",
            "binary_version": "1.27.0+ds1-3ubuntu2"
          },
          {
            "binary_name": "mupdf",
            "binary_version": "1.27.0+ds1-3ubuntu2"
          },
          {
            "binary_name": "mupdf-tools",
            "binary_version": "1.27.0+ds1-3ubuntu2"
          },
          {
            "binary_name": "python3-mupdf",
            "binary_version": "1.27.0+ds1-3ubuntu2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "mupdf",
        "purl": "pkg:deb/ubuntu/mupdf@1.27.0+ds1-3ubuntu2?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.25.1+ds1-7",
        "1.25.1+ds1-7build1",
        "1.25.1+ds1-7build2",
        "1.27.0+ds1-2ubuntu1",
        "1.27.0+ds1-3ubuntu1",
        "1.27.0+ds1-3ubuntu2"
      ]
    }
  ],
  "aliases": [],
  "details": "A vulnerability was determined in Artifex MuPDF up to 1.28.0. The impacted element is the function fz_subset_cff_for_gids of the file subset-cff.c of the component CFF Index Handler. This manipulation causes out-of-bounds read. The attack can only be executed locally. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through a bug report but has not responded yet.",
  "id": "UBUNTU-CVE-2026-7233",
  "modified": "2026-05-20T15:24:34Z",
  "published": "2026-04-28T07:16:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-7233"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-7233"
    },
    {
      "type": "REPORT",
      "url": "https://bugs.ghostscript.com/show_bug.cgi?id=709328"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P",
      "type": "CVSS_V4"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-7233"
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.