Skip to main content
Public proof of conceptFix available

CVE-2026-53448

A public proof of concept exists; no exploitation attested.

  • Published2026-07-10
  • Fixed in4.12.0
  • WeaknessCWE-89

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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.

Timeline

dates in UTC
  1. 2026-07-1019:17CVE publishedNVD

Versions per branch

NVD
Coturn project coturn
BranchAffectedFixed in
4.12< 4.12.04.12.0

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As GitHub_M, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • coturn
    Affected
    • = < 4.12.0no fix stated

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2026-07-10

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • coturnUbuntu:26.04:LTSall versions · no fixed version listed
  • coturnUbuntu:24.04:LTSall versions · no fixed version listed
  • coturnUbuntu:22.04:LTSall versions · no fixed version listed
  • coturnUbuntu:20.04:LTSall versions · no fixed version listed
  • coturnUbuntu:18.04:LTSall versions · no fixed version listed
  • coturnUbuntu:16.04:LTSall versions · no fixed version listed
  • coturnopenSUSE:Tumbleweedall versions · fixed in 4.17.2-1.1
  • coturnDebian:14all versions · fixed in 4.12.0-1

2 more package ranges on OSV.dev

Full record on NVD

Fix

  1. Update Coturn project coturn to 4.12.0

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

  • NVDCVE recordread 2026-10-23
  • CISA-ADPSSVC decisionpoc2026-07-14
  • CNACVSS 3.17.2known since 2026-10-23
  • CNAweakness (CWE)CWE-89known since 2026-10-23
  • FIRST EPSSEPSS score0.7 %2026-11-08
  • OSVaffected packages—

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Published
2026-07-10
Last Modified
2026-07-16
NVD status
Analyzed

Frequently asked questions

What is CVE-2026-53448?

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.

Is CVE-2026-53448 actively exploited?

A proof-of-concept exploit exists for CVE-2026-53448, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2026-53448?

CVE-2026-53448 has a CVSS v3 base score of 7.2 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Running coturn? Hear about its next vulnerability

Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».

Get alerts for this productCISA KEV additions, November 2026Search CVEs

No credit card required · No monthly cap on website lookups · 250 API requests/month

Go further

Related vulnerabilities

Same product first, then the same vendor advisory and the same publication week.

Back to CVE Database

Sources for this record