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CVE-2026-18203

🗓️ 31 Jul 2026 07:08:21Reported by redhat.comType 
redhatcve
 redhatcve
🔗 access.redhat.com👁 25 Views

CVE-2026-18203: prefix checks in group policy allow bypass and admin access; no mitigation.

Related
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-18203
31 Jul 202607:08
–attackerkb
cve
CVE
CVE-2026-18203
31 Jul 202607:08
–cve
cvelist
Cvelist
CVE-2026-18203 Keycloak-services: keycloak-services: group policy extendchildren matches sibling group path prefixes
31 Jul 202607:08
–cvelist
euvd
EUVD
EUVD-2026-51484
31 Jul 202607:08
–euvd
mend
Mend
CVE-2026-18203
31 Jul 202607:08
–mend
nvd
NVD
CVE-2026-18203
31 Jul 202608:16
–nvd
ptsecurity
Positive Technologies
PT-2026-66722
31 Jul 202600:00
–ptsecurity
rapid7
Rapid7 Vulnerability Database (full)
CVE-2026-18203: Incorrect Authorization
31 Jul 202600:00
–rapid7
snyk
Snyk
Incorrect Authorization
28 Jul 202613:44
–snyk
veracode
Veracode
Improper Authorization
24 Aug 202612:54
–veracode
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31 Aug 2026 15:01Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.16.5
EPSS0.00312
SSVC
25