Low severity3.3NVD Advisory· Published Aug 7, 2026· Updated Nov 2, 2026
CVE-2026-71852
CVE-2026-71852
Description
pypdf is a free and open-source pure-python PDF library. Prior to 6.15.0, a crafted PDF can cause long runtimes and large memory consumption when pypdf/_font.py function Font._collect_cid_character_widths expands unusually large CID font /W width ranges or excessive width entries during text extraction. This issue is fixed in 6.15.0.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
pypdfPyPI | < 6.15.0 | 6.15.0 |
Affected products
6- osv-coords4 versionspkg:apk/chainguard/litellmpkg:apk/chainguard/open-webuipkg:apk/chainguard/nemopkg:apk/wolfi/open-webui
< 1.96.2-r0+ 3 more
- (no CPE)range: < 1.96.2-r0
- (no CPE)range: < 0.11.0-r8
- (no CPE)range: < 2.7.3-r17
- (no CPE)range: < 0.11.0-r8
Patches
Vulnerability mechanics
References
5- github.com/py-pdf/pypdf/commit/51cb6acf9e8a35b77e90b4d87d28fe3e1416d7d7nvdPatchWEB
- github.com/py-pdf/pypdf/pull/3946nvdPatchWEB
- github.com/py-pdf/pypdf/security/advisories/GHSA-fwg2-594c-jp42nvdPatchVendor AdvisoryWEB
- github.com/advisories/GHSA-fwg2-594c-jp42ghsaADVISORY
- github.com/py-pdf/pypdf/releases/tag/6.15.0nvdRelease NotesWEB
News mentions
0No linked articles in our index yet.