{"schema":"threatline.record/2","record":{"id":"CVE-2026-104074","aliases":[],"summary":"Coturn 4.10.0 Uninitialized Stack Memory Disclosure via ERROR-CODE","details":"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.","categories":["Unclassified"],"product":"coturn","vendor":"coturn","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-104074","source_modified_at":"2026-10-07T20:45:12.158Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"coturn","vendor":"coturn","versions":[{"status":"affected","version":"4.10.0","versionType":"semver","lessThan":"4.11.0"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-104074","source_modified_at":"2026-10-07T20:45:12.158Z","fetched_at":"2026-10-23T18:48:36.087640Z","package":{"name":"coturn","ecosystem":null},"version":"4.11.0","basis":"first unaffected version stated in the CVE record"}],"cvss":6.9,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00311,"percentile":0.22709,"score_date":"2026-10-23"},"published_at":"2026-10-07T14:29:45.615Z","modified_at":"2026-10-07T20:45:12.158Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-104074","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-07T20:45:12.158Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-104074","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/coturn/coturn/releases/tag/4.11.0","tags":["release-notes"]},{"source":"CVE List","url":"https://github.com/coturn/coturn/pull/1878","tags":["issue-tracking"]},{"source":"CVE List","url":"https://github.com/coturn/coturn/commit/741b2983cc52f967dd08c438fd72a5f08f13ca27","tags":["patch"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"yes","technical_impact":"partial","assessed_at":"2026-10-07T20:44:58.308446Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-07T20:45:12.158Z","content_hash":"8fdcf801a652dae6c73415643c3d38c8d3a43cf1d1ecbf36c76deb9b7573ddae"}}