Medium severity4.8NVD Advisory· Published Aug 7, 2026

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 products

Py PDF/Pypdfllm-fuzzy
Range: <6.15.0

Patches

Vulnerability mechanics

References

github.com/advisories/GHSA-fwg2-594c-jp42ghsaADVISORY
github.com/py-pdf/pypdf/commit/51cb6acf9e8a35b77e90b4d87d28fe3e1416d7d7nvd
github.com/py-pdf/pypdf/pull/3946nvd
github.com/py-pdf/pypdf/releases/tag/6.15.0nvd
github.com/py-pdf/pypdf/security/advisories/GHSA-fwg2-594c-jp42nvd

News mentions

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cvss	0.260
epss	0.000
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000