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GHSA-G857-HHFV-J68W Buffer Overflow in Zlib::GzipReader ungetc via large input leads to memory corruption

🗓️ 16 Apr 2026 20:40:54Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 7 Views

Buffer overflow in Zlib GzipReader ungets can corrupt memory; update to zlib 3.2.3 or later.

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10 Jun 2026 13:40Current
6.1Medium risk
Vulners AI Score6.1
CVSS 48.5
CVSS 3.19.8
EPSS0.00561
7