{"api_version":"1","generated_at":"2026-06-23T20:08:06+00:00","cve":"CVE-2026-55568","urls":{"html":"https://cve.report/CVE-2026-55568","api":"https://cve.report/api/cve/CVE-2026-55568.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-55568","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-55568"},"summary":{"title":"Guzzle: Silent HTTPS-Proxy Downgrade to Cleartext","description":"Guzzle is an extensible PHP HTTP client. Prior to 7.12.1, in certain configurations, traffic expected to be protected by TLS on the hop to the proxy is transmitted in cleartext. Proxy authentication credentials (the Proxy-Authorization header, proxy userinfo in the proxy URL, or CURLOPT_PROXYUSERPWD) are sent without encryption, and the CONNECT target host and port for tunneled HTTPS requests are exposed. 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