Org.keycloak.protocol.oidc.endpoints.logoutendpoint: offline session takeover due to reused authentication session id
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
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| Keycloak | keycloak | unaffected |
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| Red Hat | Red Hat build of Keycloak 26.2 | affected |
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| Red Hat | Red Hat build of Keycloak 26.2 | affected |
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| Red Hat | Red Hat build of Keycloak 26.2 | affected |
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| Red Hat | Red Hat build of Keycloak 26.2.11 | unaffected | — | ||||||
| Red Hat | Red Hat build of Keycloak 26.4 | affected |
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| Red Hat | Red Hat build of Keycloak 26.4 | affected |
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| Red Hat | Red Hat build of Keycloak 26.4 | affected |
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| Red Hat | Red Hat build of Keycloak 26.4.4 | unaffected | — |
No data.
No data.
No data available yet.
Vendor Workaround
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
| Source | ID | Title |
|---|---|---|
Github GHSA |
GHSA-rg35-5v25-mqvp | Keycloak vulnerable to session takeovers due to reuse of session identifiers |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.141% probability within 30 days)
| Type | Values Removed | Values Added |
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| References |
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| Type | Values Removed | Values Added |
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| CPEs | cpe:/a:redhat:build_keycloak:26.2::el9 | |
| References |
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| Type | Values Removed | Values Added |
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| CPEs | cpe:/a:redhat:build_keycloak:26.4::el9 | |
| References |
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| References |
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| Metrics |
threat_severity
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threat_severity
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| Metrics |
ssvc
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| Description | A flaw was found in Keycloak. In Keycloak where a user can accidentally get access to another user's session if both use the same device and browser. This happens because Keycloak sometimes reuses session identifiers and doesn’t clean up properly during logout when browser cookies are missing. As a result, one user may receive tokens that belong to another user. | |
| Title | Org.keycloak.protocol.oidc.endpoints.logoutendpoint: offline session takeover due to reused authentication session id | |
| First Time appeared |
Redhat
Redhat build Keycloak |
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| Weaknesses | CWE-384 | |
| CPEs | cpe:/a:redhat:build_keycloak: | |
| Vendors & Products |
Redhat
Redhat build Keycloak |
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| References |
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| Metrics |
cvssV3_1
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