PT-2026-62026 · Red Hat · Red Hat Enterprise Linux 10

CVE-2026-12547 · Published 2026-07-21 · Updated 2026-07-21

NVD

CVSS v3.1

3.4

Low

Base vector

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

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.

Fix

Weakness Enumeration

CWE-201

Related Identifiers

CVE-2026-12547

Affected Products

Red Hat Enterprise Linux 10

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-12547 · Security Note
• https://access.redhat.com/security/cve/CVE-2026-12547 · Note
• https://gitlab.gnome.org/GNOME/libsoup/-/work_items/506 · Note
• https://bugzilla.redhat.com/show_bug.cgi?id=2489994 · Note