CVE-2026-118689

OvenMediaEngine through 0.21.0 OVT Relay DoS via Oversized payload_length

Published Oct 28, 2026 CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Ovenmedialabs
Ovenmedialabs ovenmediaengine
Vendors & Products Ovenmedialabs
Ovenmedialabs ovenmediaengine
Type Values Removed Values Added
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.
Title OvenMediaEngine through 0.21.0 OVT Relay DoS via Oversized payload_length
Weaknesses CWE-770
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Nov 3, 2026, 1:39 PM
Reserved
Oct 28, 2026, 5:31 PM
Status
Deferred
Published
Oct 28, 2026, 10:17 PM
Modified
Nov 3, 2026, 2:17 PM