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oasdiff oasdiff-action

CVE-2026-53507 High 8.3 oasdiff actions resolve external $refs by default, enabling SSRF and disclosure of structured files on pull-request runs 0.5%

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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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