high7.5
CVE-2026-59935
pypdf: Possible infinite loop for not terminated inline images (ASCII85 and ASCIIHex filter)
Impact
pypdf is a free and open-source pure-python PDF library. Prior to 6.14.2, an attacker can craft a PDF with a page content stream containing a not terminated inline image that uses the ASCII85 or ASCIIHex filters, causing an infinite loop during parsing such as when extracting page text. This issue is fixed in version 6.14.2.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| pip | pypdf | < 6.14.2 | 6.14.2 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Pypdf Project | Pypdf | before 6.14.2 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-g867-7843-wf8q
- https://github.com/py-pdf/pypdf/security/advisories/GHSA-g867-7843-wf8q
- https://nvd.nist.gov/vuln/detail/CVE-2026-59935
- https://github.com/py-pdf/pypdf/pull/3892
- https://github.com/py-pdf/pypdf/commit/5a33a46416aa1ae6c025ff90a3cca57631fdafd2
- https://github.com/py-pdf/pypdf/releases/tag/6.14.2