{"id":"CURL-CVE-2026-8927","summary":"env-set cross-proxy Digest auth state leak","details":"When reusing a libcurl handle for sequential transfers driven by\nenvironment-variable proxy configuration, libcurl fails to clear the proxy\nauthentication state between requests. Specifically, if the initial transfer\nauthenticates against `proxyA` using Digest auth, a subsequent transfer routed\nthrough `proxyB` erroneously leaks the `Proxy-Authorization:` header intended\nsolely for `proxyA`.","aliases":["CVE-2026-8927"],"modified":"2026-06-24T08:07:05.879014Z","published":"2026-06-24T08:00:00Z","database_specific":{"URL":"https://curl.se/docs/CVE-2026-8927.json","affects":"lib","CWE":{"id":"CWE-294","desc":"Authentication Bypass by 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