CVE-2026-92413: Artifex MuPDF PDF Xref Loading pdf-stream.c pdf_open_filter null pointer dereference
A flaw has been found in Artifex MuPDF up to b6d17493700c621c0e70036980a6ebd06d2202c9. Affected by this vulnerability is the function pdfopenfilter 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.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Artifex MuPDF (PDF Xref Loading, pdf-stream.c, pdf_open_filter)to a version that resolves this vulnerability.Patch 3df1e30f9d7b77260e13bd0dbe1928ddeba8386e
Event History
Frequently Asked Questions
What does an attacker need to exploit this issue?
The attack can be launched remotely and requires user interaction. No privileges are required, and exploitation involves manipulating PDF Xref loading so that pdf_open_filter encounters a null pointer.
What is the likely security impact?
Successful exploitation can cause a null pointer dereference, resulting in low availability impact. The provided assessment indicates no confidentiality or integrity impact.
Which releases are affected and what fixes the issue?
Artifex MuPDF versions up to commit b6d17493700c621c0e70036980a6ebd06d2202c9 are affected. The available fix is patch commit 3df1e30f9d7b77260e13bd0dbe1928ddeba8386e.
How urgent is remediation?
A public exploit has been published and may be used. Applying the identified patch is advised.