What is GHSA-q5mw-fjrj-6qmh?

GHSA-q5mw-fjrj-6qmh is a security advisory published by GitHub Security Advisories with Medium severity. Consul and Consul Enterprise are vulnerable to a denial of service in the native RPC listener...

Which CVE IDs does GHSA-q5mw-fjrj-6qmh cover?

GHSA-q5mw-fjrj-6qmh covers the following CVE IDs: CVE-2026-87106. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-q5mw-fjrj-6qmh?

GHSA-q5mw-fjrj-6qmh has a CVSS v3 base score of 6.5, published by GitHub Security Advisories.

GHSA-q5mw-fjrj-6qmhMediumCVSS 6.5

Consul and Consul Enterprise are vulnerable to a denial of service in the native RPC listener...

Vendor

GitHub Security Advisories

Published

September 10, 2026

Last Modified

September 10, 2026

🔗 CVE IDs covered (1)

CVE-2026-87106 →

📋 Description

Consul and Consul Enterprise are vulnerable to a denial of service in the native RPC listener that may allow an authenticated client to exhaust server memory before ACL authorization is evaluated. A client that can complete the internal RPC mTLS handshake may exploit this issue without holding a valid ACL token. This vulnerability (CVE-2026-87106) is fixed in Consul 2.0.4 and Consul Enterprise 1.21.18, 1.22.12 and 2.0.4.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-87106
https://discuss.hashicorp.com/t/hcsec-2026-35-consul-vulnerable-to-a-denial-of-service-in-the-native-rpc-listener/77737
https://github.com/advisories/GHSA-q5mw-fjrj-6qmh