Lucene search
K

CVE-2026-4634

🗓️ 02 Apr 2026 12:44:57Reported by redhat.comType 
redhatcve
 redhatcve
🔗 access.redhat.com

Unauthenticated attacker can crash Keycloak by sending an oversized scope to the token endpoint.

Related
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-4634
2 Apr 202612:44
attackerkb
Chainguard
CVE-2026-4634 vulnerabilities
5 Apr 202601:17
cgr
Circl
CVE-2026-4634
2 Apr 202614:45
circl
CNNVD
Keycloak 安全漏洞
2 Apr 202600:00
cnnvd
CVE
CVE-2026-4634
2 Apr 202612:44
cve
Cvelist
CVE-2026-4634 Keycloak: keycloak: denial of service via excessive processing of openid connect scope parameters
2 Apr 202612:44
cvelist
EUVD
EUVD-2026-18212
2 Apr 202615:31
euvd
Github Security Blog
Keycloak: Application-Level DoS via Scope Processing
2 Apr 202615:31
github
NVD
CVE-2026-4634
2 Apr 202613:16
nvd
OSV
CGA-X9JX-4G6W-95RC
4 Apr 202618:15
osv
Rows per page

Data

Build on a solid foundation with Vulners data

We provide the essential building blocks for cybersecurity solutions with comprehensive, structured, and constantly updated vulnerability and exploits data

Api

Power your application with Vulners API

The Vulners REST API offers reliable, high-performance access to vulnerability intelligence, with 99.9% SLA uptime and CDN-backed data delivery for seamless global access

App

Assess and manage vulnerabilities with Vulners tools

Built on top of Vulners' database and SDK, end-user solutions give security professionals and developers lightweight and powerful tools for vulnerability remediation

02 Apr 2026 15:42Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.17.5
EPSS0.00024
SSVC
0