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pnggroup libpng-apng

CVE-2026-40930 Medium 5.4 LIBPNG: Chunk smuggling in push-mode APNG parser via unconsumed chunk body 0.2%

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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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