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CVE-2026-118689high8.7

OvenMediaEngine through 0.21.0 OVT Relay DoS via Oversized payload_length

Impact

OvenMediaEngine through 0.21.0 has a denial of service vulnerability in OvtPacket::LoadHeader() that allows unauthenticated attackers to stall connections by sending oversized payload_length values. This can disrupt origin-to-edge stream relay. Attackers can send crafted OVT packets to hold connections open indefinitely.

Summarized by @cf/meta/llama-3.3-70b-instruct-fp8-fast. Verify details against the original sources.

Affected packages

This source has no supported package-version data for matching. You can read the advisory here, but this record alone cannot power a dependency check.

Affected products

Vendor version evidence. Product records are separate from automatic dependency matching.

OvenMediaLabs · VulnCheck

OvenMediaEngine

1 range
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affected

0 → through 0.21.0

semver versions

unaffected

unknown

Other versions: unaffected

Original source 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.

Inside the record

Evidence available

Package identity · not supplied
Version evidence
Remediation guidance · not supplied
Weakness classification
Additional publishers · not supplied

Describes the evidence in this view, not whether the product is safe.

Original records

CVE-2026-118689

View the latest unmodified CVE JSON from the official source. It may be newer than this imported page.

cve.new JSON →

Underlying weaknesses

The source’s classification of what caused the vulnerability.

CWE-770 ↗

Allocation of Resources Without Limits or Throttling

VulnCheck

Related →
Contributing organizations · 1
VulnCheck

Assigning organization

2026-10-28

What changed

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References

6 sources
github.com/OvenMediaLabs/OvenMediaEngine/commit/ce316146d668a934217f25c777289ca256aa6786
patchVulnCheck
github.com/OvenMediaLabs/OvenMediaEngine/issues/2330
issue-trackingVulnCheck
github.com/OvenMediaLabs/OvenMediaEngine
productVulnCheck
github.com/OvenMediaLabs/OvenMediaEngine/blob/v0.21.0/src/modules/ovt_packetizer/ovt_packet.cpp
technical-descriptionVulnCheck
github.com/OvenMediaLabs/OvenMediaEngine/blob/v0.21.0/src/modules/ovt_packetizer/ovt_depacketizer.cpp
technical-descriptionVulnCheck
www.vulncheck.com/advisories/ovenmediaengine-through-0.21.0-ovt-relay-dos-via-oversized-payload-length
third-party-advisoryVulnCheck