MEDIUM 6.9 NVD
CVE-2026-104074
Coturn 4.10.0 contains an uninitialized memory disclosure vulnerability that allows remote unauthenticated attackers to leak stack memory contents by sending a
Coturn 4.10.0 contains an uninitialized memory disclosure vulnerability that allows remote unauthenticated attackers to leak stack memory contents by sending a TURN Allocate request without credentials. Attackers can exploit the stun_init_error_response_common_str() function in src/client/ns_turn_msg.c, which fails to zero-initialize the avalue buffer before computing its length with strlen() and copying leaked stack bytes into the ERROR-CODE reason phrase, exposing pointer fragments that weaken ASLR and enable precise version fingerprinting.
References
- https://github.com/coturn/coturn/commit/741b2983cc52f967dd08c438fd72a5f08f13ca27
- https://github.com/coturn/coturn/pull/1878
- https://github.com/coturn/coturn/releases/tag/4.11.0
This medium severity vulnerability with a CVSS score of 6.9 was published on 2026-10-07 via NVD.
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