https://db.gcve.eu/rss/recent/all/10 Most recent entries from all 2026-10-30T03:40:12.813547+00:00 Vulnerability-Lookup info@gcve.eu python-feedgen Contains only the most 10 recent entries. https://db.gcve.eu/vuln/cve-2026-113790 CVE-2026-113790 — pypdf: Possible large memory usage when parsing arrays and dictionaries 2026-10-30T03:40:12.814841+00:00

Affected: py-pdf pypdf

pypdf is a free and open-source pure-python PDF library. Prior to 6.21.0, an attacker can craft a PDF containing arrays or dictionaries with many elements, causing parsing to consume large amounts of memory. This issue is fixed in version 6.21.0.

 https://db.gcve.eu/vuln/ghsa-f54x-cmq8-qg57 GHSA-f54x-cmq8-qg57 — pypdf: Possible large memory usage when parsing arrays and dictionaries 2026-10-30T03:40:12.814911+00:00

Affected: PyPI: pypdf

### Impact

An attacker who uses this vulnerability can craft a PDF which leads to large memory usage. This requires parsing arrays and/or dictionaries with lots of elements.

### Patches

This has been fixed in [pypdf==6.21.0](https://github.com/py-pdf/pypdf/releases/tag/6.21.0).

### Workarounds

If you cannot upgrade yet, consider applying the changes from PR [#4218](https://github.com/py-pdf/pypdf/pull/4218).