https://vulnerability.circl.lu/rss/recent/all/10 Most recent entries from all 2026-10-01T21:39:00.910683+00:00 Vulnerability-Lookup info@circl.lu python-feedgen Contains only the most 10 recent entries. https://vulnerability.circl.lu/vuln/fkie_cve-2026-102993 fkie_cve-2026-102993 2026-10-01T21:39:00.964226+00:00

pypdf is a free and open-source pure-python PDF library. Prior to 6.17.0, a crafted PDF can provide unusually large Roman page-label values that cause pypdf/_page_labels.py to generate excessively large numeral strings when an application retrieves document page labels, consuming large amounts of memory and potentially making the application unavailable. This issue is fixed in version 6.17.0.

 https://vulnerability.circl.lu/vuln/ghsa-qv6h-rv94-w285 GHSA-qv6h-rv94-w285 — pypdf: Possible large memory usage when retrieving Roman page labels 2026-10-01T21:39:00.964680+00:00

Affected: PyPI: pypdf

### Impact

An attacker who uses this vulnerability can craft a PDF which leads to large memory consumption. This requires accessing the page labels of a document with large Roman numerals.

### Patches

This has been fixed in [pypdf==6.17.0](https://github.com/py-pdf/pypdf/releases/tag/6.17.0).

### Workarounds

If you cannot upgrade yet, consider applying the changes from PR [#4047](https://github.com/py-pdf/pypdf/pull/4047).

 https://vulnerability.circl.lu/vuln/pysec-2026-4158 PYSEC-2026-4158 — pypdf: Possible large memory usage when retrieving Roman page labels 2026-10-01T21:39:00.964813+00:00

Affected: PyPI: pypdf

### Impact

An attacker who uses this vulnerability can craft a PDF which leads to large memory consumption. This requires accessing the page labels of a document with large Roman numerals.

### Patches

This has been fixed in [pypdf==6.17.0](https://github.com/py-pdf/pypdf/releases/tag/6.17.0).

### Workarounds

If you cannot upgrade yet, consider applying the changes from PR [#4047](https://github.com/py-pdf/pypdf/pull/4047).