[NEW] [UNPATCHED] [medium] Keycloak: Multiple vulnerabilities
An attacker can exploit multiple vulnerabilities in Keycloak to bypass security measures, manipulate data, and disclose confidential information.
CSIRTS triage
- What
- Multiple vulnerabilities allow attackers to bypass security measures and manipulate data.
- Who is affected
- Attackers targeting Keycloak deployments.
- Urgency
- Remediation is medium urgency as the vulnerabilities are unpatched and can lead to significant risks.
- Action
- Monitor for updates and apply patches when available.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2407
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-159430.21% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 11% of all scored CVEs.
- Low exploitation riskCVE-2026-160720.22% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 13% of all scored CVEs.
- Low exploitation riskCVE-2026-160890.14% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 4% of all scored CVEs.
- Low exploitation riskCVE-2026-160930.19% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 9% of all scored CVEs.
- Low exploitation riskCVE-2026-161030.21% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 11% of all scored CVEs.
- Low exploitation riskCVE-2026-161040.20% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 11% of all scored CVEs.
- Low exploitation riskCVE-2026-161060.20% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 10% of all scored CVEs.
- Low exploitation riskCVE-2026-161080.18% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 8% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-15943 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-16072 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-16089 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-16093 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-16103 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-16104 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-16106 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-16108 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
- mediumCVE-2026-16108: A flaw was found in the default-groups REST endpoint and realm representation of Keycloak. Thi…nvd
- mediumCVE-2026-16106: A flaw was found in the admin REST API of Keycloak, a solution for identity and access managem…nvd
- mediumCVE-2026-16104: A flaw was found in the authentication configuration endpoint of the keycloak-services compone…nvd
- mediumCVE-2026-16103: A flaw was found in the keycloak-services component of Keycloak. This issue is an incomplete f…nvd
- mediumCVE-2026-16093: Keycloak provides a mechanism called Client Policies to enforce security requirements on clien…nvd
- mediumCVE-2026-16089: A flaw was found in the keycloak-services component of Red Hat Build of Keycloak. The issue oc…nvd
- mediumCVE-2026-16072: A flaw was found in the organization management component of Keycloak. A delegated administrat…nvd
- mediumCVE-2026-15943: A flaw was found in the Keycloak keycloak-services component, which handles the management of …nvd
Recent advisories for Keycloak
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
- mediumCVE-2026-18218: A flaw was found in the TokenManager component of the Keycloak identity management service. Wh…nvd · 2026-07-31
- lowCVE-2026-18217: A flaw was found in the SAML protocol implementation of Keycloak, an open-source identity and …nvd · 2026-07-31
- mediumCVE-2026-18215: Keycloak provides a way to let users log in using Microsoft accounts while restricting access …nvd · 2026-07-31
- mediumCVE-2026-18214: Keycloak allows users to log in using Google accounts and can be configured to only allow user…nvd · 2026-07-31
- mediumCVE-2026-18211: A flaw was found in the secure-client-uris client policy executor within Keycloak core service…nvd · 2026-07-31
- lowCVE-2026-18209: A flaw was found in the keycloak-services component of Keycloak, which handles OpenID Connect …nvd · 2026-07-31
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