CVE-2026-59935
pypdf: Possible infinite loop for not terminated inline images (ASCII85 and ASCIIHex filter)
Summary
### Impact An attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires parsing the content stream of a page with a not terminated inline image, as done when extracting the page text for example. It only affects the ASCII85 and ASCIIHex filters. ### Patches This has been fixed in [pypdf==6.14.2](https://github.com/py-pdf/pypdf/releases/tag/6.14.2). ### Workarounds If you cannot upgrade yet, consider applying the changes from PR [#3892](https://github.com/py-pdf/pypdf/pull/3892).
Affected packages
| Ecosystem | Package | Affected versions | Fixed versions |
|---|---|---|---|
| PyPI | pypdf | — | 6.14.2 |
Remediation: Upgrade to 6.14.2 or later.
References
Includes data from the GitHub Advisory Database, licensed under CC-BY 4.0.
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EPSS scores provided by the FIRST.org Exploit Prediction Scoring System.