CVE-2026-25554 OpenSIPS 3.1 <= 3.6.4 auth_jwt SQL Injection Enables JWT Authentication Bypass
Attackers can bypass JWT authentication and impersonate identities via SQL injection in OpenSIPS when using a database backend.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-25554?
CVE-2026-25554 is a high-severity SQL injection vulnerability in OpenSIPS, published on 25 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
OpenSIPS versions 3.1 before 3.6.4 containing the auth_jwt module (prior to commit 3822d33) contain a SQL injection vulnerability in the jwt_db_authorize() function in modules/auth_jwt/authorize.c when db_mode is enabled and a SQL database backend is used. The function extracts the tag claim from a JWT without prior signature verification and incorporates the unescaped value directly into a SQL query. An attacker can supply a crafted JWT with a malicious tag claim to manipulate the query result and bypass JWT authentication, allowing impersonation of arbitrary identities.
Weakness: CWE-89
Which versions are affected by CVE-2026-25554?
How do I fix CVE-2026-25554?
No fix has been published for CVE-2026-25554 yet. Limit exposure of the affected software until one is available.
Use parameterised queries everywhere and never build SQL by joining strings. Upgrade affected software first; a web application firewall only buys time. More about SQL injection.
Is CVE-2026-25554 being exploited?
There is no known exploitation of CVE-2026-25554 in the wild and no public exploit code.
Sources
Also known as GHSA-7f98-q4h8-rf6r, UBUNTU-CVE-2026-25554.