CVE-2026-25554

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.

PUBLISHED Reserved 2026-02-02 | Published 2026-02-25 | Updated 2026-02-25 | Assigner VulnCheck

Problem types

CWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

Product status

Credits

Pavel Kohout, Aisle Reserach, www.aisle.com finder

References

opensips.org/pub/opensips/3.6.4/ChangeLog release-notes

github.com/OpenSIPS/opensips/pull/3807 issue-tracking

github.com/...ommit/3822d33c1c6b25832fdd88da1d23eed74be55b05 patch

opensips.org/ product

www.vulncheck.com/...ction-enables-jwt-authentication-bypass third-party-advisory

cve.org (CVE-2026-25554)

nvd.nist.gov (CVE-2026-25554)

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