What is GHSA-vw8x-hqvx-7q8q?

GHSA-vw8x-hqvx-7q8q is a security advisory published by GitHub Security Advisories with Medium severity. Zebra 2.3.0 before 6.4.0 contains a protection mechanism failure that allows unauthenticated...

Which CVE IDs does GHSA-vw8x-hqvx-7q8q cover?

GHSA-vw8x-hqvx-7q8q covers the following CVE IDs: CVE-2026-109364. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-vw8x-hqvx-7q8q?

GHSA-vw8x-hqvx-7q8q has a CVSS v3 base score of 5.3, published by GitHub Security Advisories.

GHSA-vw8x-hqvx-7q8qMediumCVSS 5.3

Zebra 2.3.0 before 6.4.0 contains a protection mechanism failure that allows unauthenticated...

Vendor

GitHub Security Advisories

Published

October 12, 2026

Last Modified

October 12, 2026

🔗 CVE IDs covered (1)

CVE-2026-109364 →

📋 Description

Zebra 2.3.0 before 6.4.0 contains a protection mechanism failure that allows unauthenticated peers to evade bans because bans and misbehavior scores are keyed on exact IP addresses. Attackers can reconnect from fresh IPv6 addresses in their /64 allocation or flush the 20,000-entry FIFO ban list to restore access for banned peers.

🔗 References (4)

https://github.com/ZcashFoundation/zebra/security/advisories/GHSA-jhpp-8h75-7pv5
https://nvd.nist.gov/vuln/detail/CVE-2026-109364
https://www.vulncheck.com/advisories/zebra-2.3.0-before-6.4.0-peer-ban-bypass-via-exact-ip-keying
https://github.com/advisories/GHSA-vw8x-hqvx-7q8q