CVE-2021-3754
unknown
CVSS v3
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CVSS v4 NEW
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VIR risk
—
Description
Keycloak's improper input validation allows using email as username
Predictions
Exploit likelihood
30%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Maven | org.keycloak:keycloak-services | <24.0.1 | 24.0.1 |
References
- https://github.com/keycloak/keycloak/security/advisories/GHSA-4vc8-pg5c-vg4x
- https://nvd.nist.gov/vuln/detail/CVE-2021-3754
- https://github.com/keycloak/keycloak/commit/f9708037383aa98741e4850447de64dc4a0d4b4e
- https://access.redhat.com/security/cve/CVE-2021-3754
- https://bugzilla.redhat.com/show_bug.cgi?id=1999196
- https://github.com/keycloak/keycloak
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.