High severityNVD Advisory· Published Sep 30, 2026

CVE-2026-102996

Description

pypdf is a free and open-source pure-python PDF library. Prior to 6.18.1, a crafted PDF can provide a TrueType or Type1 simple font with an unusually large /Widths array, causing pypdf/_font.py Font._collect_tt_t1_character_widths to process entries beyond the 256 character codes meaningful for a simple font and consume excessive memory during operations such as text extraction. This issue is fixed in version 6.18.1.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Py PDF/Pypdfllm-fuzzy
Range: <6.18.1

Patches

Vulnerability mechanics

References

github.com/py-pdf/pypdf/commit/0fb26eb8cdd01c44b3b2c9fe8329751be2f7cfd5nvd
github.com/py-pdf/pypdf/pull/4072nvd
github.com/py-pdf/pypdf/releases/tag/6.18.1nvd
github.com/py-pdf/pypdf/security/advisories/GHSA-g9cg-prrw-2r8qnvd

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cvss	0.455
epss	0.000
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000