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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_pysec
 osv_pysec
🔗 osv.dev👁 17 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
6.9Medium risk
Vulners AI Score6.9
CVSS 48.7
EPSS0.00361
17