Vulnerability Description
A flaw was found in libsoup. When libsoup clients encounter an HTTP redirect, they mistakenly send the HTTP Authorization header to the new host that the redirection points to. This allows the new host to impersonate the user to the original host that issued the redirect.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://access.redhat.com/errata/RHSA-2025:4439
- https://access.redhat.com/errata/RHSA-2025:4440
- https://access.redhat.com/errata/RHSA-2025:4508
- https://access.redhat.com/errata/RHSA-2025:4538
- https://access.redhat.com/errata/RHSA-2025:4560
- https://access.redhat.com/errata/RHSA-2025:4568
- https://access.redhat.com/errata/RHSA-2025:4609
- https://access.redhat.com/errata/RHSA-2025:4624
- https://access.redhat.com/errata/RHSA-2025:7436
- https://access.redhat.com/errata/RHSA-2025:7505
- https://access.redhat.com/security/cve/CVE-2025-46421
- https://bugzilla.redhat.com/show_bug.cgi?id=2361962
- https://gitlab.gnome.org/GNOME/libsoup/-/issues/439
FAQ
What is CVE-2025-46421?
CVE-2025-46421 is a vulnerability with a CVSS score of 6.8 (MEDIUM). A flaw was found in libsoup. When libsoup clients encounter an HTTP redirect, they mistakenly send the HTTP Authorization header to the new host that the redirection points to. This allows the new hos...
How severe is CVE-2025-46421?
CVE-2025-46421 has been rated MEDIUM with a CVSS base score of 6.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-46421?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.