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Ruby zlib

CVE-2026-27820 Low 1.7 zlib: Buffer Overflow in Zlib::GzipReader ungetc via large input leads to memory corruption 0.6%

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Exploit-availability signals from CVSS-BT by Stephen Shaffer (MIT license), which aggregates Metasploit (BSD), Nuclei templates (MIT), PoC-in-GitHub (CC0) and NVD (public domain).

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