CVE-2024-25189 Security feature bypass in n/a

What is CVE-2024-25189?

CVE-2024-25189 is a critical vulnerability in Debian Debian Linux, published on 8 Feb 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

libjwt 1.15.3 uses strcmp (which is not constant time) to verify authentication, which makes it easier to bypass authentication via a timing side channel.

Weakness: CWE-203

Which versions are affected by CVE-2024-25189?

It affects 2 products.

Products include Debian Debian Linux, Libjwt Libjwt.

How do I fix CVE-2024-25189?

Upgrade to a fixed version.

Is CVE-2024-25189 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-25189 exists.

Other vulnerabilities in Debian Debian Linux

• CVE-2015-3306 ProFTPD Improper Access Control Exploited Critical 10.0
• CVE-2025-49113 RoundCube Webmail Deserialization of Untrusted Data Exploited Critical 9.9
• CVE-2026-24061 GNU InetUtils Argument Injection Exploited Critical 9.8
• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2024-25189, DLA-3739-1, GHSA-m5gq-732f-j9v6, UBUNTU-CVE-2024-25189.