Multiple vulnerabilities in KeyCloak (August 6, 2026)
Multiple vulnerabilities have been discovered in KeyCloak. Some of them allow an attacker to cause privilege escalation, remote denial of service, and a breach of data confidentiality.
CSIRTS triage
- What
- Multiple vulnerabilities in KeyCloak enable privilege escalation, denial of service, and confidentiality breach.
- Who is affected
- KeyCloak deployments with unpatched versions.
- Urgency
- High urgency due to privilege escalation and data confidentiality impact in authentication system.
- Action
- Apply KeyCloak security updates for CVEs published August 6, 2026.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://www.cert.ssi.gouv.fr/avis/CERTFR-2026-AVI-0976/
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-2026-155730.29% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 21% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-164430.14% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 4% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-161020.26% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 17% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-164420.19% 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-2026-161000.30% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 23% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-160710.20% 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-2026-155720.35% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 27% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-15573 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-16443 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-16102 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-16442 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-16100 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-16071 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-15572 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
- high[NEW] [high] RedHat Build of Keycloak: Multiple Vulnerabilitiescert-bund
- highCVE-2026-16442: A flaw was found in the SAML broker component of Keycloak, which is used to manage identity fe…nvd
- highCVE-2026-15572: A flaw was found in Keycloak's Dynamic Client Registration (DCR) security policy management. T…nvd
- highCVE-2026-16102: A flaw was found in the Dynamic Client Registration (DCR) component of Keycloak, an identity a…nvd
- mediumCVE-2026-16100: A flaw was found in the user-event metrics recording of Keycloak. When metrics are enabled, th…nvd
- mediumCVE-2026-16071: A flaw was found in the LDAP storage provider of Keycloak, which is used to federate user iden…nvd
- highCVE-2026-15573: A flaw was found in Keycloak's Authorization Services. The component responsible for matching …nvd
- highCVE-2026-16443: A flaw was found in the SAML metadata import functionality of the keycloak-services component,…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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