CVE-2026-12547

CVE-2026-12547 concerns Libsoup's SoupAuthManager, which caches proxy authentication credentials without scoping them to the proxy authority (host:port). When proxy settings change (e.g., system settings or WPAD), cached Proxy-Authorization headers from the previous proxy may be sent to the new p...

CVE-2026-12547 Libsoup: information disclosure in libsoup via soupauthmanager proxy credential leak on proxy switch

SoupAuthManager caches proxy authentication credentials without scoping them to the proxy authority host:port. When the proxy configuration changes e.g., via system settings or WPAD, cached Proxy-Authorization headers from the previous proxy are sent to the new proxy, leaking credentials...

CVE-2026-7168 cross-proxy Digest auth state leak

Successfully using libcurl to do a transfer over a specific HTTP proxy proxyA with Digest authentication and then changing the proxy host to a second one proxyB for a second transfer, reusing the same handle, makes libcurl wrongly pass on the Proxy-Authorization: header field meant for proxyA, to...

CVE-2026-7168

CVE-2026-7168 affects libcurl/curl where Digest authentication state is carried across proxies on the same easy handle. Public details show that changing proxies or only the proxy port can cause a stale Proxy-Authorization: Digest header (from proxyA) to be reused for proxyB, leaking authenticati...

CVE-2026-7168

Successfully using libcurl to do a transfer over a specific HTTP proxy proxyA with Digest authentication and then changing the proxy host to a second one proxyB for a second transfer, reusing the same handle, makes libcurl wrongly pass on the Proxy-Authorization: header field meant for proxyA, to...

CVE-2026-6253 proxy credentials leak over redirect-to proxy

curl might erroneously pass on credentials for a first proxy to a second proxy. This can happen when the following conditions are true: 1. curl is setup to use specific different proxies for different URL schemes 2. the first proxy needs credentials 3. the second proxy uses no credentials 4. whil...