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Security2026-08-29 · source-backed
CVE-2026-55641: the request guard decides a caller is local by reading the client-controlled Host header, and the server binds 0.0.0.0 by default while the CLI prints "localhost." Any remote attacker sending Host: localhost gets /v1 proxy access with no API key, no CLI token and no login, plus unauthenticated SSRF through the built-in noAuth searxng provider. Its sibling, CVE-2026-55638, authorizes on the pre-rewrite Next.js path, and /codex/* isn't in the protected prefix list but rewrites to the same backend. Both turn the operator's stored paid provider credentials into an open relay. (GitHub Advisory)
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