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CVE-2026-4633: Generation of Error Message Containing Sensitive Information

🗓️ 23 Mar 2026 00:00:00Reported by Rapid7Type 
rapid7
 rapid7
🔗 www.rapid7.com👁 2 Views

Remote user enumeration in Keycloak via differential error messages during login.

Related
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-4633
23 Mar 202610:53
–attackerkb
cgr
Chainguard
CVE-2026-4633 vulnerabilities
5 Apr 202601:17
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circl
Circl
CVE-2026-4633
23 Mar 202612:42
–circl
cnnvd
CNNVD
Keycloak 安全漏洞
23 Mar 202600:00
–cnnvd
cve
CVE
CVE-2026-4633
23 Mar 202610:53
–cve
cvelist
Cvelist
CVE-2026-4633 Keycloak: keycloak: user enumeration via differential error messages
23 Mar 202610:53
–cvelist
euvd
EUVD
EUVD-2026-14400
23 Mar 202612:30
–euvd
github
Github Security Blog
Keycloak's identity-first login flow exposes user information
23 Mar 202612:30
–github
nvd
NVD
CVE-2026-4633
23 Mar 202611:16
–nvd
osv
OSV
CGA-2FX2-FQ44-FPX3
18 Jun 202618:38
–osv
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01 Apr 2026 00:00Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.13.7
EPSS0.00365
SSVC
2