CVE-2026-12547
LOW
INFO
Priority: 0.01
BB Relevance:
42/100
Published: 2026-07-21
Modified: 2026-10-24
First seen: 2026-10-29
Status: active
Attack Surface
Network
Low Complexity
Scope Change
CVSS Vector Breakdown
AV:
Network
AC:
Low
PR:
High
UI:
Required
S:
Changed
C:
Low
I:
None
A:
None
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.