Medium severity6.5NVD Advisory· Published Jun 12, 2019· Updated Jun 17, 2026
CVE-2019-3875
CVE-2019-3875
Description
A vulnerability was found in keycloak before 6.0.2. The X.509 authenticator supports the verification of client certificates through the CRL, where the CRL list can be obtained from the URL provided in the certificate itself (CDP) or through the separately configured path. The CRL are often available over the network through unsecured protocols ('http' or 'ldap') and hence the caller should verify the signature and possibly the certification path. Keycloak currently doesn't validate signatures on CRL, which can result in a possibility of various attacks like man-in-the-middle.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
org.keycloak:keycloak-coreMaven | <= 6.0.1 | — |
Affected products
4- cpe:2.3:a:redhat:single_sign-on:7.3:*:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
4- bugzilla.redhat.com/show_bug.cginvdIssue TrackingPatchVendor AdvisoryWEB
- www.securityfocus.com/bid/108748nvdThird Party AdvisoryVDB Entry
- github.com/advisories/GHSA-38cg-gg9j-q9j9ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2019-3875ghsaADVISORY
News mentions
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