CVE-2025-46421 Information disclosure in Red Hat Enterprise Linux 10
Attackers can steal authorization headers when libsoup clients follow redirects, allowing impersonation of users to the original host.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2025-46421?
CVE-2025-46421 is a medium-severity vulnerability in Red Hat Enterprise Linux 10, published on 24 Apr 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-497
Which versions are affected by CVE-2025-46421?
How do I fix CVE-2025-46421?
Apply the vendor's patch.
Is CVE-2025-46421 being exploited?
There is no known exploitation of CVE-2025-46421 in the wild and no public exploit code.
Sources
Also known as AZL-61498, AZL-61630, DEBIAN-CVE-2025-46421, GHSA-pr7v-prvv-52v8, UBUNTU-CVE-2025-46421.