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CVE-2026-54531 pypdf: Possible infinite loop when processing outlines/bookmarks in writer

🗓️ 22 Jun 2026 20:26:19Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 3 Views

Attacker can cause an infinite loop when merging an outlines PDF into a writer in pypdf before version 6.13.0; fixed in 6.13.0.

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08 Jul 2026 08:13Current
5.9Medium risk
Vulners AI Score5.9
CVSS 46.9
EPSS0.00123
3