{"schema":"threatline.record/2","record":{"id":"CVE-2026-118689","aliases":[],"summary":"OvenMediaEngine through 0.21.0 OVT Relay DoS via Oversized payload_length","details":"OvenMediaEngine through 0.21.0 contains a denial of service vulnerability in OvtPacket::LoadHeader() that allows unauthenticated attackers to stall connections by sending payload_length values above 32750. Attackers can send crafted OVT packets to the OVT listener to hold connections open indefinitely and accumulate buffered memory, disrupting origin-to-edge stream relay.","categories":["Unclassified"],"product":"OvenMediaEngine","vendor":"OvenMediaLabs","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-118689","source_modified_at":"2026-10-28T21:11:17.232Z","fetched_at":"2026-10-29T00:48:09.584895Z","product":"OvenMediaEngine","vendor":"OvenMediaLabs","versions":[{"version":"0","lessThanOrEqual":"0.21.0","status":"affected","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[],"cvss":8.7,"severity":"High","kev":{"listed":false},"epss":{"probability":null,"percentile":null,"score_date":null},"published_at":"2026-10-28T21:11:17.232Z","modified_at":"2026-10-28T21:11:17.232Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-118689","fetched_at":"2026-10-29T00:48:09.584895Z","source_modified_at":"2026-10-28T21:11:17.232Z"}],"sources":["CVE List"],"references":[{"source":"CVE List","url":"https://github.com/OvenMediaLabs/OvenMediaEngine/issues/2330","tags":["issue-tracking"]},{"source":"CVE List","url":"https://github.com/OvenMediaLabs/OvenMediaEngine","tags":["product"]},{"source":"CVE List","url":"https://github.com/OvenMediaLabs/OvenMediaEngine/blob/v0.21.0/src/modules/ovt_packetizer/ovt_packet.cpp#L48-L129","tags":["technical-description"]},{"source":"CVE List","url":"https://github.com/OvenMediaLabs/OvenMediaEngine/blob/v0.21.0/src/modules/ovt_packetizer/ovt_depacketizer.cpp#L32-L53","tags":["technical-description"]},{"source":"CVE List","url":"https://github.com/OvenMediaLabs/OvenMediaEngine/commit/ce316146d668a934217f25c777289ca256aa6786","tags":["patch"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/ovenmediaengine-through-0.21.0-ovt-relay-dos-via-oversized-payload-length","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-28T21:11:17.232Z","content_hash":"223fa256aeb9ac2062fb80af861e4ac0e18166e1d03138c8b1bd2e409deeda16"}}