Vulnerability-Lookup

GHSA-PXVR-C538-2CRQ

Vulnerability from github – Published: 2026-09-16 18:32 – Updated: 2026-09-16 18:32

Details

A flaw has been found in Artifex MuPDF up to b6d17493700c621c0e70036980a6ebd06d2202c9. Affected by this vulnerability is the function pdf_open_filter of the file pdf-stream.c of the component PDF Xref Loading. Executing a manipulation can lead to null pointer dereference. The attack can be launched remotely. The exploit has been published and may be used. This patch is called 3df1e30f9d7b77260e13bd0dbe1928ddeba8386e. Applying a patch is advised to resolve this issue.

Severity

4.3 (Medium)


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

2.1 (Low)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P

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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-92413"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-404"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-16T18:17:20Z",
    "severity": "LOW"
  },
  "details": "A flaw has been found in Artifex MuPDF up to b6d17493700c621c0e70036980a6ebd06d2202c9. Affected by this vulnerability is the function pdf_open_filter of the file pdf-stream.c of the component PDF Xref Loading. Executing a manipulation can lead to null pointer dereference. The attack can be launched remotely. The exploit has been published and may be used. This patch is called 3df1e30f9d7b77260e13bd0dbe1928ddeba8386e. Applying a patch is advised to resolve this issue.",
  "id": "GHSA-pxvr-c538-2crq",
  "modified": "2026-09-16T18:32:07Z",
  "published": "2026-09-16T18:32:06Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-92413"
    },
    {
      "type": "WEB",
      "url": "https://artifex.com"
    },
    {
      "type": "WEB",
      "url": "https://bugs.ghostscript.com/attachment.cgi?id=28434"
    },
    {
      "type": "WEB",
      "url": "https://bugs.ghostscript.com/show_bug.cgi?id=709610"
    },
    {
      "type": "WEB",
      "url": "https://cgit.ghostscript.com/cgi-bin/cgit.cgi/mupdf.git/commit/?id=3df1e30f9d7b77260e13bd0dbe1928ddeba8386e"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/cve/CVE-2026-92413"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/submit/940975"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/405593"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/405593/cti"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2026-92413 (GCVE-0-2026-92413)

Vulnerability from cvelistv5 – Published: 2026-09-16 17:30 – Updated: 2026-09-16 17:30

Title

Artifex MuPDF PDF Xref Loading pdf-stream.c pdf_open_filter null pointer dereference

Summary

Severity

5.3 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P

4.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C

4.3 (Medium)


                        
                          CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C

CWE

CWE-476 - NULL Pointer Dereference
CWE-404 - Denial of Service

Assigner

VulDB mitre root

References

8 references

URL	Tags
https://vuldb.com/vuln/405593	vdb-entrytechnical-description
https://vuldb.com/vuln/405593/cti	signaturepermissions-required
https://vuldb.com/cve/CVE-2026-92413	third-party-advisory
https://vuldb.com/submit/940975	third-party-advisory
https://bugs.ghostscript.com/show_bug.cgi?id=709610	issue-tracking
https://bugs.ghostscript.com/attachment.cgi?id=28434	exploit
https://cgit.ghostscript.com/cgi-bin/cgit.cgi/mup…	patch
https://artifex.com/	product

Impacted products

1 product

Vendor	Product	Version
Artifex	MuPDF	Affected: b6d17493700c621c0e70036980a6ebd06d2202c9 cpe:2.3:a:artifex:mupdf::::::::

Credits

fczhang (VulDB User)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "cpes": [
            "cpe:2.3:a:artifex:mupdf:*:*:*:*:*:*:*:*"
          ],
          "modules": [
            "PDF Xref Loading"
          ],
          "product": "MuPDF",
          "vendor": "Artifex",
          "versions": [
            {
              "status": "affected",
              "version": "b6d17493700c621c0e70036980a6ebd06d2202c9"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "fczhang (VulDB User)"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A flaw has been found in Artifex MuPDF up to b6d17493700c621c0e70036980a6ebd06d2202c9. Affected by this vulnerability is the function pdf_open_filter of the file pdf-stream.c of the component PDF Xref Loading. Executing a manipulation can lead to null pointer dereference. The attack can be launched remotely. The exploit has been published and may be used. This patch is called 3df1e30f9d7b77260e13bd0dbe1928ddeba8386e. Applying a patch is advised to resolve this issue."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P",
            "version": "4.0"
          }
        },
        {
          "cvssV3_1": {
            "baseScore": 4.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C",
            "version": "3.1"
          }
        },
        {
          "cvssV3_0": {
            "baseScore": 4.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C",
            "version": "3.0"
          }
        },
        {
          "cvssV2_0": {
            "baseScore": 5,
            "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P/E:POC/RL:OF/RC:C",
            "version": "2.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-476",
              "description": "NULL Pointer Dereference",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-404",
              "description": "Denial of Service",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-16T17:30:10.298Z",
        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "shortName": "VulDB"
      },
      "references": [
        {
          "name": "VDB-405593 | Artifex MuPDF PDF Xref Loading pdf-stream.c pdf_open_filter null pointer dereference",
          "tags": [
            "vdb-entry",
            "technical-description"
          ],
          "url": "https://vuldb.com/vuln/405593"
        },
        {
          "name": "VDB-405593 | CTI Indicators (IOB, IOC, IOA)",
          "tags": [
            "signature",
            "permissions-required"
          ],
          "url": "https://vuldb.com/vuln/405593/cti"
        },
        {
          "name": "CVE-2026-92413 | CVE Analysis and Report",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/cve/CVE-2026-92413"
        },
        {
          "name": "Submit #940975 | Artifex Software MuPDF mutool commit b6d17493700c621c0e70036980a6ebd06d2202c9 NULL pointer dereference",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/submit/940975"
        },
        {
          "tags": [
            "issue-tracking"
          ],
          "url": "https://bugs.ghostscript.com/show_bug.cgi?id=709610"
        },
        {
          "tags": [
            "exploit"
          ],
          "url": "https://bugs.ghostscript.com/attachment.cgi?id=28434"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://cgit.ghostscript.com/cgi-bin/cgit.cgi/mupdf.git/commit/?id=3df1e30f9d7b77260e13bd0dbe1928ddeba8386e"
        },
        {
          "tags": [
            "product"
          ],
          "url": "https://artifex.com/"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-09-16T00:00:00.000Z",
          "value": "Advisory disclosed"
        },
        {
          "lang": "en",
          "time": "2026-09-16T02:00:00.000Z",
          "value": "VulDB entry created"
        },
        {
          "lang": "en",
          "time": "2026-09-16T11:38:03.000Z",
          "value": "VulDB entry last update"
        }
      ],
      "title": "Artifex MuPDF PDF Xref Loading pdf-stream.c pdf_open_filter null pointer dereference",
      "x_generator": [
        "VulDB PVTS v202609"
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
    "assignerShortName": "VulDB",
    "cveId": "CVE-2026-92413",
    "datePublished": "2026-09-16T17:30:10.298Z",
    "dateReserved": "2026-09-16T09:32:58.686Z",
    "dateUpdated": "2026-09-16T17:30:10.298Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

GHSA-PXVR-C538-2CRQ

CVE-2026-92413 (GCVE-0-2026-92413)

Tags

Sightings

Nomenclature

Related by attack behaviour