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Critical · 9.8 CVE-2026-89040 EUVD-2026-79672GHSA-wfq6-vqf6-g78h

Tencent Mass Service Engine in Cluster (MSEC) path traversal

Published Sep 15, 2026 · Updated Sep 22, 2026 · Assigned by cisa-cg

Description

Tencent Mass Service Engine in Cluster (MSEC) allows a remote, unauthenticated attacker to send a crafted POST request including ../ and gain root access on the target device. An attacker who uploads a webshell can execute arbitrary code as root.

Affected products

VendorProductAffectedFixed
Tencent Mass Service Engine in Cluster (MSEC) — —

References

  • url product
  • url third-party-advisory
  • url vdb-entry