CVE-2026-85450: MOOS core-moos through 10.4.0 MOOSDB HTTP Server Resource Exhaustion

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-09-03 · updated 2026-10-14
Weakness: CWE-770

Description

MOOS core-moos through 10.4.0 contains a denial of service vulnerability in the MOOSDB HTTP server that creates unbounded connections and threads without limits. Attackers can open many connections and send endless header data to exhaust server threads and memory, causing service unavailability.

Affected products

themoos core-moos: before 10.4.0 — fixed in 10.4.0

How to fix

Upgrade to a fixed version: themoos core-moos 10.4.0. Check the vendor advisory for mitigations.

References

https://github.com/themoos/core-moos
https://github.com/themoos/core-moos/blob/ec9c77c68fcbdef8f5e4c60fe243acd223433f0c/Core/libMOOS/DB/HTTPConnection.cpp#L167
https://github.com/themoos/core-moos/commit/dfef92b3bc31886bc47e4d680aef583b78cb8d72
https://github.com/themoos/core-moos/pull/79
https://www.vulncheck.com/advisories/moos-core-moos-through-10.4.0-moosdb-http-server-resource-exhaustion

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