---
id: CVE-2026-25554
title: OpenSIPS 3.1 <= 3.6.4 auth_jwt SQL Injection Enables JWT Authentication Bypass
summary: >-
  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 databa…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N'
cvssSource: cna
cwe:
  - CWE-89
vendor: OpenSIPS
product: OpenSIPS
affected:
  - OpenSIPS >= 3.1 < 3.6.4
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-03-04T16:43:08.070958Z'
published: '2026-02-25'
updated: '2026-11-08'
sourceUpdated: '2026-11-08T14:01:27.090Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-25554'
references:
  - url: 'https://opensips.org/pub/opensips/3.6.4/ChangeLog'
  - url: 'https://github.com/OpenSIPS/opensips/pull/3807'
  - url: >-
      https://github.com/OpenSIPS/opensips/commit/3822d33c1c6b25832fdd88da1d23eed74be55b05
  - url: 'https://opensips.org/'
  - url: >-
      https://www.vulncheck.com/advisories/opensips-auth-jwt-sql-injection-enables-jwt-authentication-bypass
tags:
  - cve.org
epss: 0.00364
epssPercentile: 0.30498
ingestedAt: '2026-11-08T14:51:22.471Z'
---

## Overview

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.

## Affected

- `OpenSIPS >= 3.1 < 3.6.4`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.