CVE-2025-32908 Libsoup: denial of service on libsoup through http/2 server
Attackers can cause denial of service in libsoup HTTP/2 servers by sending invalid pseudo-header values, affecting applications using this library.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-32908?
CVE-2025-32908 is a high-severity denial of service vulnerability in Red Hat Enterprise Linux 10, published on 14 Apr 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A flaw was found in libsoup. The HTTP/2 server in libsoup may not fully validate the values of pseudo-headers :scheme, :authority, and :path, which may allow a user to cause a denial of service (DoS).
Weakness: CWE-115
Which versions are affected by CVE-2025-32908?
How do I fix CVE-2025-32908?
Apply the vendor's patch.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2025-32908 being exploited?
There is no known exploitation of CVE-2025-32908 in the wild and no public exploit code.
Sources
Also known as AZL-60396, DEBIAN-CVE-2025-32908, GHSA-7hqq-7crg-xr49, ROOT-OS-DEBIAN-12-CVE-2025-32908, UBUNTU-CVE-2025-32908.