Bug 2490558 (CVE-2026-43915) - CVE-2026-43915 coturn: Coturn: Cross-Site Scripting (XSS) via crafted username in TURN allocation
Summary: CVE-2026-43915 coturn: Coturn: Cross-Site Scripting (XSS) via crafted usernam...
Keywords:
Status: NEW
Alias: CVE-2026-43915
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2490809 2490810
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-06-18 20:01 UTC by OSIDB Bzimport
Modified: 2026-06-19 16:27 UTC (History)
0 users

Fixed In Version:
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Description OSIDB Bzimport 2026-06-18 20:01:27 UTC 
Coturn is a free open source implementation of TURN and STUN Server. Versions prior to 4.11.0 contain a stored cross-site scripting (XSS) vulnerability in the web-admin HTTPS interface. An attacker who can create a TURN allocation with a crafted USERNAME value can inject HTML/JavaScript that executes when an authenticated web-admin user views the TURN session list. In configurations using anonymous TURN access (--no-auth), this may be exploitable without TURN credentials. In authenticated deployments, exploitation requires valid TURN credentials or control over a provisioned username. This issue has been fixed in version 4.11.0.
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