Artifex MuPDF PDF Xref Loading pdf-stream.c pdf_open_filter null pointer dereference (CVE-2026-92413) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-92413

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

Answer in brief

CVE-2026-92413 records a Unknown severity vulnerability in Artifex MuPDF PDF Xref Loading pdf-stream.c pdf_open_filter null pointer dereference. The current sources do not mark it as known exploited. The current feed maps Artifex/MuPDF (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 16, 2026Updated Sep 16, 2026Source checked Sep 16, 2026First seen by HOL Sep 16, 2026Material review Sep 16, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Not reported

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Artifex/MuPDF (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Artifex/MuPDFgeneric	b6d17493700c621c0e70036980a6ebd06d2202c9	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Artifex/MuPDF.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Sep 16, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 16, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 16, 2026

Sources and claim methodology

Upstream source description

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.

Quoted source text, attributed separately from HOL analysis.