[NEW] [medium] Keycloak: Multiple vulnerabilities
An attacker can exploit multiple vulnerabilities in Keycloak to escalate privileges, bypass security measures, manipulate data and disclose sensitive information.
CSIRTS triage
- What
- Multiple vulnerabilities in Keycloak allow attackers to escalate privileges, bypass security measures, manipulate data, and disclose sensitive information.
- Who is affected
- All Keycloak deployments are affected.
- Urgency
- Medium severity; privilege escalation and auth bypass require timely remediation.
- Action
- Apply Keycloak security updates addressing CVE-2026-16105, CVE-2026-18203, CVE-2026-18206, CVE-2026-18208, CVE-2026-18209, CVE-2026-18211, CVE-2026-18214, and CVE-2026-18215.
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-2026-2614
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-2026-161050.20% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 10% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-182030.20% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 10% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-182060.22% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 12% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-182080.22% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 13% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-182090.19% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 9% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-182110.19% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 9% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-182140.20% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 10% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-182150.19% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 9% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-182170.19% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 9% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-182180.13% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 3% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-16105 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-18203 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-18206 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-18208 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-18209 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-18211 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-18214 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-18215 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-18217 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-18218 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-18570 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-18571 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-18572 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-18573 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-53573 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
- mediumCVE-2026-18573: A flaw was found in the keycloak-services component of Keycloak, which is used for managing au…nvd
- mediumCVE-2026-18572: Keycloak provides authorization services that allow administrators to restrict access to resou…nvd
- mediumCVE-2026-18571: A flaw was found in the user creation component of Keycloak when Fine-Grained Admin Permission…nvd
- mediumCVE-2026-18570: A flaw was found in the full-scope-disabled client-policy executor within the keycloak-service…nvd
- unknownCVE-2026-53573: GeoNetwork is a catalog application to manage spatially referenced resources. From 3.12.0 unti…nvd
- mediumGHSA-pjp7-q6wp-97qx: core-geonetwork has an Open Redirect Bypassghsa
- mediumCVE-2026-18218: A flaw was found in the TokenManager component of the Keycloak identity management service. Wh…nvd
- lowCVE-2026-18217: A flaw was found in the SAML protocol implementation of Keycloak, an open-source identity and …nvd
- mediumCVE-2026-18215: Keycloak provides a way to let users log in using Microsoft accounts while restricting access …nvd
- mediumCVE-2026-18214: Keycloak allows users to log in using Google accounts and can be configured to only allow user…nvd
- mediumCVE-2026-18211: A flaw was found in the secure-client-uris client policy executor within Keycloak core service…nvd
- lowCVE-2026-18209: A flaw was found in the keycloak-services component of Keycloak, which handles OpenID Connect …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.
- high[NEW] [high] RedHat Build of Keycloak: Multiple Vulnerabilitiescert-bund · 2026-08-06
- medium[UPDATE] [medium] Keycloak (admin-ui-ext): Vulnerability allows file manipulationcert-bund · 2026-08-06
- medium[UPDATE] [medium] Keycloak: Multiple vulnerabilitiescert-bund · 2026-08-06
- medium[NEW] [UNPATCHED] [medium] Keycloak: Multiple vulnerabilitiescert-bund · 2026-08-06
- medium[UPDATE] [medium] Keycloak: Multiple vulnerabilitiescert-bund · 2026-08-06
- high[UPDATE] [high] Keycloak: Multiple vulnerabilitiescert-bund · 2026-08-06
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