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PYSEC-2026-1832 pypdf's LZWDecode streams be manipulated to exhaust RAM

🗓️ 07 Jul 2026 16:03:10Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 5 Views

LZWDecode in pypdf can exhaust memory up to one gigabyte per stream; fixed in version six four zero.

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07 Jul 2026 17:46Current
5.8Medium risk
Vulners AI Score5.8
CVSS 48.7
EPSS0.00353
5