An issue in Artifex mupdf 1.25.6, 1.25.5 allows a remote attacker to cause a denial of service via an infinite recursion in the `mutool clean` utility. When processing a crafted PDF file containing cyclic /Next references in the outline structure, the `strip_outline()` function enters infinite recursion
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Ubuntu | — | Upgrade mupdfUpgrade mupdf-toolsUpgrade mupdf (Ubuntu Pro)Upgrade mupdf-tools (Ubuntu Pro) | Nov 27, 2025 | Aug 4, 2025 |
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