Coturn: SQL Injection in HTTPS Admin Panel Delete Operations
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- SQL injection
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-89.
Summary
Coturn is a free open source implementation of TURN and STUN Server. Prior to 4.12.0, the coturn HTTPS admin panel passes HTTP query parameters directly into SQL queries via snprintf string interpolation without sanitization. The is_secure_string filter that protects the STUN protocol path is not applied to the admin panel's delete-user, delete-secret, and delete-IP operations, so an authenticated admin can inject arbitrary SQL through the du, ds, and dip parameters, gaining full database control and potentially OS-level access via PostgreSQL COPY TO PROGRAM. This issue is fixed in version 4.12.0.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA coturn (coturn) Fixed in 4.12.0
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2026-53448
References
More Coturn vulnerabilities
- TI-2026-32037 Coturn: Stack buffer overflow in decode_oauth_token_gcm() CVSS 3.1CRITICAL 9.8
- TI-2026-29348 Coturn: Misaligned Memory Access in coturn STUN Attribute Parser (Remote DoS on ARM64) CVSS 3.1HIGH 7.5
- TI-2026-22006 Coturn: IPv4-mapped IPv6 (::ffff:0:0/96) bypasses denied-peer-ip ACL CVSS 3.1HIGH 7.2
- TI-2026-38531 Coturn: IPv4-mapped 127.0.0.1 bypasses default loopback peer protection CVSS 3.1HIGH 7.4
- TI-2026-38530 Coturn: Arbitrary File Write via CLI psd Command CVSS 3.1MEDIUM 6.0
- TI-2020-04928 Out-of-bounds read in CoTURN CVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-53448 · CVE Program
- CVE-2026-53448 · NVD
- FIRST EPSS
- CVE-2026-53448 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences