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GHSA-M449-CWJH-6PW7 pypdf's LZWDecode streams be manipulated to exhaust RAM

🗓️ 24 Nov 2025 22:42:07Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 4 Views

pypdf LZWDecode can exhaust RAM up to 1 GB per stream; fixed in 6.4.0; workaround sets LZW_MAX_OUTPUT_LENGTH.

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07 Jul 2026 17:56Current
6.7Medium risk
Vulners AI Score6.7
CVSS 48.7
EPSS0.0032
4