{"id":"CVE-2026-104074","published":"2026-10-07T15:17:02.760","lastModified":"2026-10-07T21:17:08.473","description":"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.","cvssScore":5.3,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","cwes":["CWE-908"],"vendors":[],"products":[],"references":[{"url":"https://github.com/coturn/coturn/commit/741b2983cc52f967dd08c438fd72a5f08f13ca27","tags":[]},{"url":"https://github.com/coturn/coturn/pull/1878","tags":[]},{"url":"https://github.com/coturn/coturn/releases/tag/4.11.0","tags":[]}],"exploitRefs":[{"url":"https://github.com/coturn/coturn/commit/741b2983cc52f967dd08c438fd72a5f08f13ca27","tags":[]},{"url":"https://github.com/coturn/coturn/pull/1878","tags":[]},{"url":"https://github.com/coturn/coturn/releases/tag/4.11.0","tags":[]}],"hasPoc":true,"ai":null}