[ CVE-2026-118689 · Published 28 Oct 2026 ]
Vulnerability in OvenMediaLabs OvenMediaEngine
CVSS 7.5
EPSS <1%No fix listed yet
[ Why it matters ]Priority signals
- Public proof-of-concept exploit exists (CISA SSVC)
[ Description ]Official description
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.
[ Fixes ]Fixes and patches
No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.
[ References ]References
- github.com/OvenMediaLabs/OvenMediaEngine
- github.com/OvenMediaLabs/OvenMediaEngine/blob/v0.21.0/src/modules/ovt_packetizer/ovt_de…
- github.com/OvenMediaLabs/OvenMediaEngine/blob/v0.21.0/src/modules/ovt_packetizer/ovt_pa…
- github.com/OvenMediaLabs/OvenMediaEngine/commit/ce316146d668a934217f25c777289ca256aa6786
- github.com/OvenMediaLabs/OvenMediaEngine/issues/2330
- www.vulncheck.com/advisories/ovenmediaengine-through-0.21.0-ovt-relay-dos-via-oversized…