A vulnerability was found in all versions of the deprecated package Keycloak Gatekeeper, where on using lower case HTTP headers (via cURL) we can bypass our Gatekeeper. Lower case headers are also accepted by some webservers (e.g. Jetty). This means there is no protection when we put a Gatekeeper in front of a Jetty server and use lowercase headers.
go package report
Is github.com/keycloak/keycloak-gatekeeper safe?
1 known vulnerability, worst severity HIGH.
// reach
0 direct dependencies
none carry a known advisory
0 packages depend on it
an advisory here reaches each of them
Create a free accountfor every dependency path, dependent and what to upgrade
// ai model usage
Tracked for PyPI packages. HuggingFace models declare Python dependencies, so go packages are not covered.
cvss
0.0
high
severity band, no base score published
epss
0.00%
medium
chance of exploitation in 30 days, 59th percentile of all CVEs
xyz score
0.0
low
CyberXYZ composite out of 10
fig. 01 — GHSA-jh6m-3pqw-242h, the advisory selected below
// 1 advisories
Checked 2026-10-01 at 00:04 UTC. The most recent advisory here was published 2022-02-09. Updated continuously from NVD, GHSA, OSV and CNA feeds.