mupdf vulnerabilities and fixes

Recent CVEs affecting mupdf, with upgrade or downgrade steps. 2 tracked.

mupdf has 2 tracked vulnerabilities, 0 critical. A fixed release or vendor patch exists for 2. Most recent: 2026-04-28. Highest priority: CVE-2026-7233 (score 20/100).

• CVE-2026-7233 LOW 3.3 UPGRADE A vulnerability was determined in Artifex MuPDF up to 1.28.0
• CVE-2026-40505 LOW 3.3 UPGRADE MuPDF before 1.27 contains an ANSI injection vulnerability in mutool that allows attackers to inject arbitrary

FAQ

How do I fix mupdf vulnerabilities?

Open the CVE for your version, check the affected range, then follow the listed action: upgrade to the fixed release, or downgrade or mitigate if no fix exists yet. Commands for each OS are shown on every CVE page.

Is mupdf being exploited right now?

None of the tracked mupdf CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.

Which mupdf CVE should I patch first?

CVE-2026-7233 currently ranks highest (20/100): A vulnerability was determined in Artifex MuPDF up to 1.28.0.

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