CVE-2026-73215

Published: Ago 11, 2026 Last Modified: Ago 11, 2026
ExploitDB:
Other exploit source:
Google Dorks:
HIGH 7,1
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: low
User Interaction: none
Confidentiality: N/A
Integrity: N/A
Availability: N/A

Description

AI Translation Available

Coturn is a free open source implementation of TURN and STUN Server. Prior to 4.17.0, turnports_allocate_even() in src/apps/relay/turn_ports.c marks the unused odd sibling port as TPS_TAKEN_ODD for an EVEN-PORT Allocate request with reservation bit R=0 even though no RTCP socket will release it, allowing an authenticated client to permanently exhaust the relay port pool and cause subsequent allocations to fail with STUN error 508. This issue is fixed in version 4.17.0.

400

Uncontrolled Resource Consumption

Draft
Abstraction: Class Structure: Simple
Common Consequences
Security Scopes Affected:
Availability Access Control Other
Potential Impacts:
Dos: Crash, Exit, Or Restart Dos: Resource Consumption (Cpu) Dos: Resource Consumption (Memory) Dos: Resource Consumption (Other) Bypass Protection Mechanism Other
Applicable Platforms
Technologies: Not Technology-Specific, AI/ML
Likelihood of Exploit: High
View CWE Details
772

Missing Release of Resource after Effective Lifetime

Draft
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Availability
Potential Impacts:
Dos: Resource Consumption (Other) Dos: Resource Consumption (Memory) Dos: Resource Consumption (Cpu)
Applicable Platforms
Technologies: Mobile
Likelihood of Exploit: High
View CWE Details
https://github.com/coturn/coturn/commit/4adbd82e78456e13109…
https://github.com/coturn/coturn/commit/4adbd82e78456e13109bf44deed4ec3aceb0bab2
https://github.com/coturn/coturn/releases/tag/4.17.0
https://github.com/coturn/coturn/releases/tag/4.17.0
https://github.com/coturn/coturn/security/advisories/GHSA-8…
https://github.com/coturn/coturn/security/advisories/GHSA-847g-qmc6-6m4r