Vulnerability 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.
CVSS Score
LOW
Related Weaknesses (CWE)
References
- https://access.redhat.com/security/cve/CVE-2026-12547
- https://bugzilla.redhat.com/show_bug.cgi?id=2489994
- https://gitlab.gnome.org/GNOME/libsoup/-/work_items/506
FAQ
What is CVE-2026-12547?
CVE-2026-12547 is a vulnerability with a CVSS score of 3.4 (LOW). 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-...
How severe is CVE-2026-12547?
CVE-2026-12547 has been rated LOW with a CVSS base score of 3.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-12547?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.