PT-2026-70830 · Coturn · Coturn
CVE-2026-73215
·
Published
2026-08-11
·
Updated
2026-08-27
CVSS v4.0
7.1
High
| Vector | AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Name of the Vulnerable Software and Affected Versions
Coturn versions prior to 4.17.0
Description
The
turnports allocate even() function in src/apps/relay/turn ports.c incorrectly marks the unused odd sibling port as TPS TAKEN ODD during an EVEN-PORT Allocate request when the reservation bit R is set to 0. Because no RTCP socket is created to release this port, an authenticated client can permanently exhaust the relay port pool, leading to subsequent allocation failures and STUN error 508.Recommendations
Update to version 4.17.0.
Exploit
Fix
Resource Exhaustion
Missing Release of Resource after Effective Lifetime
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Related Identifiers
Affected Products
Coturn