Answer in brief
CVE-2026-1529 records a High severity (CVSS 8.1) vulnerability in Org.keycloak.services.resources.organizations: keycloak: unauthorized organization registration via improper invitation token validation. The current sources do not mark it as known exploited. The current feed maps org.keycloak:keycloak-services (maven), org.keycloak:keycloak-services (maven), org.keycloak:keycloak-services (maven). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 8.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps org.keycloak:keycloak-services (maven), org.keycloak:keycloak-services (maven), org.keycloak:keycloak-services (maven). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| org.keycloak:keycloak-servicesmaven | >=26.5.0 <26.5.3 | 26.5.3 |
| org.keycloak:keycloak-servicesmaven | >=0 <26.2.13 | 26.2.13 |
| org.keycloak:keycloak-servicesmaven | >=26.3.0 <26.4.9 | 26.4.9 |
Published upstream
Feb 9, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 15, 2026
A flaw was found in Keycloak. An attacker can exploit this vulnerability by modifying the organization ID and target email within a legitimate invitation token's JSON Web Token (JWT) payload. This lack of cryptographic signature verification allows the attacker to successfully self-register into an unauthorized organization, leading to unauthorized access.
Quoted source text, attributed separately from HOL analysis.