CVE-2026-12547

Published: Jul 21, 2026Modified: Jul 21, 2026

3.4

Vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:N/A:N

Exploitability: 1.7 / Impact: 1.4

Source: secalert@redhat.com (Secondary)

Description

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.

Related CWEs

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.

References (3)

https://access.redhat.com/security/cve/CVE-2026-12547

Source: secalert@redhat.com

https://bugzilla.redhat.com/show_bug.cgi?id=2489994

Source: secalert@redhat.com

https://gitlab.gnome.org/GNOME/libsoup/-/work_items/506

Source: secalert@redhat.com

Timeline

No history available yet.