CVE-2026-30949
HIGH WAF: LowParse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.5.2-alpha.5 and 8.6.18, the Keycloak authentication adapter does not validate the azp (authorized party) claim of Keycloak access tokens against the configured client-id. A valid access token issued by the same Keycloak realm for a different client application can be used to authenticate as any user on the Parse Server that uses the Keycloak adapter. This enables cross-application account takeover in multi-client Keycloak realms. All Parse Server deployments that use the Keycloak authentication adapter with a Keycloak realm that has multiple client applications are affected. This vulnerability is fixed in 9.5.2-alpha.5 and 8.6.18.
WAF Coverage Analysis
OWASP: A07:2021 Identification and Authentication Failures
Affected Software
| Vendor | Product | Version |
|---|---|---|
| parseplatform | parse-server | up to 8.6.18 |
| parseplatform | parse-server | 9.0.0 - 9.5.2 |
| parseplatform | parse-server | 9.5.2 |
| parseplatform | parse-server | 9.5.2 |
| parseplatform | parse-server | 9.5.2 |
| parseplatform | parse-server | 9.5.2 |
References
- github.com (Product, Release Notes)
- github.com (Product, Release Notes)
- github.com (Patch, Vendor Advisory)