Vulnerability-Lookup

GHSA-6JRQ-HJXP-2X5R

Vulnerability from github – Published: 2026-03-31 15:31 – Updated: 2026-04-21 12:30

Details

An integer overflow vulnerability in 'pdf-image.c' in Artifex's MuPDF version 1.27.0 allows an attacker to maliciously craft a PDF that can trigger an integer overflow within the 'pdf_load_image_imp' function. This allows a heap out-of-bounds write that could be exploited for arbitrary code execution.

Severity ?

7.8 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-3308"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-03-31T14:16:12Z",
    "severity": "HIGH"
  },
  "details": "An integer overflow vulnerability in \u0027pdf-image.c\u0027 in Artifex\u0027s MuPDF version 1.27.0 allows an attacker to maliciously craft a PDF that can trigger an integer overflow within the \u0027pdf_load_image_imp\u0027 function. This allows a heap out-of-bounds write that could be exploited for arbitrary code execution.",
  "id": "GHSA-6jrq-hjxp-2x5r",
  "modified": "2026-04-21T12:30:24Z",
  "published": "2026-03-31T15:31:56Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-3308"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ArtifexSoftware/mupdf/commit/a26f0142e7d390d4a82c6e5ae0e312e07cc4ec85"
    },
    {
      "type": "WEB",
      "url": "https://cgit.ghostscript.com/cgi-bin/cgit.cgi/mupdf.git/commit/?id=a26f0142e7d390d4a82c6e5ae0e312e07cc4ec85"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ArtifexSoftware/mupdf"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2026/04/msg00020.html"
    },
    {
      "type": "WEB",
      "url": "https://www.kb.cert.org/vuls/id/951662"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-3308 (GCVE-0-2026-3308)

Vulnerability from cvelistv5 – Published: 2026-03-31 13:13 – Updated: 2026-04-21 09:32

Title

CVE-2026-3308

Summary

Severity ?

7.8 (High)


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

CWE

CWE-190 Integer Overflow or Wraparound

Assigner

certcc

References

URL

Tags

	https://github.com/ArtifexSoftware/mupdf/commit/a…
	https://cgit.ghostscript.com/cgi-bin/cgit.cgi/mup…
	https://github.com/ArtifexSoftware/mupdf

Impacted products

	Vendor	Product	Version
	Artifex Software Inc. PyMuPDF	MuPDF	Affected: 0 , ≤ 1.27.0 (custom)

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 7.8,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "REQUIRED",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-3308",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-01T14:47:30.846054Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-190",
                "description": "CWE-190 Integer Overflow or Wraparound",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-04-01T14:48:14.433Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2026-04-21T09:32:51.075Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "https://www.kb.cert.org/vuls/id/951662"
          },
          {
            "url": "https://lists.debian.org/debian-lts-announce/2026/04/msg00020.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "MuPDF",
          "vendor": "Artifex Software Inc. *PyMuPDF*",
          "versions": [
            {
              "lessThanOrEqual": "1.27.0",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "An integer overflow vulnerability in \u0027pdf-image.c\u0027 in Artifex\u0027s MuPDF version 1.27.0 allows an attacker to maliciously craft a PDF that can trigger an integer overflow within the \u0027pdf_load_image_imp\u0027 function. This allows a heap out-of-bounds write that could be exploited for arbitrary code execution."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-190 Integer Overflow or Wraparound",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-03-31T13:13:12.088Z",
        "orgId": "37e5125f-f79b-445b-8fad-9564f167944b",
        "shortName": "certcc"
      },
      "references": [
        {
          "url": "https://github.com/ArtifexSoftware/mupdf/commit/a26f0142e7d390d4a82c6e5ae0e312e07cc4ec85"
        },
        {
          "url": "https://cgit.ghostscript.com/cgi-bin/cgit.cgi/mupdf.git/commit/?id=a26f0142e7d390d4a82c6e5ae0e312e07cc4ec85"
        },
        {
          "url": "https://github.com/ArtifexSoftware/mupdf"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "CVE-2026-3308",
      "x_generator": {
        "engine": "VINCE 3.0.35",
        "env": "prod",
        "origin": "https://cveawg.mitre.org/api/cve/CVE-2026-3308"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "37e5125f-f79b-445b-8fad-9564f167944b",
    "assignerShortName": "certcc",
    "cveId": "CVE-2026-3308",
    "datePublished": "2026-03-31T13:13:12.088Z",
    "dateReserved": "2026-02-26T21:04:05.303Z",
    "dateUpdated": "2026-04-21T09:32:51.075Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

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.

Action not permitted

GHSA-6JRQ-HJXP-2X5R

CVE-2026-3308 (GCVE-0-2026-3308)

Tags

Sightings

Nomenclature