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Keycloak affected by improper invitation token validation

🗓️ 09 Feb 2026 21:31:03Reported by GitHub Advisory DatabaseType 
github
 github
🔗 github.com👁 36 Views

Keycloak flaw lets attackers modify invitation token payload to join unauthorized organizations without signature verification.

Related
Detection
Refs
ReporterTitlePublishedViews
Family
githubexploit
GithubExploit
Exploit for CVE-2026-1529
10 Feb 202614:31
–githubexploit
githubexploit
GithubExploit
Exploit for CVE-2026-1529
11 Feb 202606:24
–githubexploit
githubexploit
GithubExploit
Exploit for CVE-2026-1529
5 Sep 202620:54
–githubexploit
attackerkb
attackerkb
CVE-2026-1529
9 Feb 202618:36
–attackerkb
bdu_fstec
BDU FSTEC
Keycloak JSON Web Token Handler Unauthorized Access
11 Feb 202600:00
–bdu_fstec
circl
Circl
CVE-2026-1529
9 Feb 202620:25
–circl
cnnvd
CNNVD
Keycloak security vulnerabilities
9 Feb 202600:00
–cnnvd
cve
CVE
CVE-2026-1529
9 Feb 202618:36
–cve
cvelist
Cvelist
CVE-2026-1529 Org.keycloak.services.resources.organizations: keycloak: unauthorized organization registration via improper invitation token validation
9 Feb 202618:36
–cvelist
nessus
Tenable Nessus
Keycloak < 26.5.3 Multiple Vulnerabilities
11 Feb 202600:00
–nessus
Rows per page
Vulners
Node
OR
org.keycloakkeycloak-servicesRange26.3.0–26.4.9maven
org.keycloakkeycloak-servicesRange26.5.0–26.5.3maven

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13 Feb 2026 20:32Current
7.2High risk
Vulners AI Score7.2
CVSS 3.18.1
EPSS0.00494
SSVC
36