Quick answers
- Is CVE-2026-92413 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-92413 being exploited in the wild.
- How severe is CVE-2026-92413?
- Medium severity, with a CVSS score of 4.3, published 16 September 2026.
- Which products and versions are affected?
- Artifex Mupdf up to b6d17493700c621c0e70036980a6ebd06d2202c9.
- Is there a fix for CVE-2026-92413?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-92413 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-92413?
- Check whether you run Artifex Mupdf at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
The vulnerability is a null pointer dereference (CWE-476) in the pdf_open_filter function within the PDF Xref Loading component (pdf-stream.c). The flaw is triggered during the parsing of a malformed PDF's cross-reference stream, where insufficient validation allows a null pointer to be dereferenced. The attack is network-reachable and requires no authentication or user interaction beyond opening a malicious PDF document. An attacker can trigger an application crash (denial of service) by distributing a crafted PDF file. A patch has been published (commit 3df1e30f9d7b77260e13bd0dbe1928ddeba8386e) and should be applied to mitigate the issue.
Affected products
- Artifex MuPDF up to b6d17493700c621c0e70036980a6ebd06d2202c9
Timeline
- 2026-09-16: disclosed