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 …
Published: 2026-07-21 · CVSS: 3.4 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7