High severity7.3NVD Advisory· Published Feb 23, 2021· Updated Jun 17, 2026
CVE-2020-14359
CVE-2020-14359
Description
A vulnerability was found in all versions of Keycloak Gatekeeper, where on using lower case HTTP headers (via cURL) an attacker 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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
github.com/keycloak/keycloak-gatekeeperGo | <= 1.2.8 | — |
Affected products
3- cpe:2.3:a:redhat:louketo_proxy:*:*:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
6- bugzilla.redhat.com/show_bug.cginvdIssue TrackingVendor AdvisoryWEB
- github.com/advisories/GHSA-jh6m-3pqw-242hghsaADVISORY
- issues.jboss.org/browse/KEYCLOAK-14090nvdIssue TrackingPermissions RequiredThird Party AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2020-14359ghsaADVISORY
- github.com/keycloak/keycloak/issues/12934ghsaWEB
- web.archive.org/web/20190613000352/github.com/keycloak/keycloak-gatekeeperghsaWEB
News mentions
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