6.5

CVE-2026-66339

Exploit

Libsoup: libsoup: proxy credentials leak to destination server via proxy-authorization header in connect tunnels

A flaw was found in libsoup. After a CONNECT tunnel is established through an HTTP proxy, libsoup incorrectly attaches the Proxy-Authorization header to subsequent HTTPS requests sent through that tunnel to the destination server. This allows the destination server to capture proxy credentials, leading to information disclosure.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Gnome ≫ Libsoup Version -
Redhat ≫ Enterprise Linux Version 6.0
Redhat ≫ Enterprise Linux Version 7.0
Redhat ≫ Enterprise Linux Version 8.0
Redhat ≫ Enterprise Linux Version 9.0
Redhat ≫ Enterprise Linux Version 10.0
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.23% 0.139
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
RedHat 6.5 2.8 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CWE-201 Insertion of Sensitive Information Into Sent Data

The code transmits data to another actor, but a portion of the data includes sensitive information that should not be accessible to that actor.

https://access.redhat.com/security/cve/CVE-2026-66339
Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2506951
Vendor Advisory
Exploit
Issue Tracking
Mitigation