GHSA-C3F3-CC42-XR9V
Vulnerability from github – Published: 2026-02-23 09:31 – Updated: 2026-02-23 18:32
VLAI?
Details
Cross-Realm Token Acceptance Bypass in KeycloakSecurityPolicy Apache Camel Keycloak component.
The Camel-Keycloak KeycloakSecurityPolicy does not validate the iss (issuer) claim of JWT tokens against the configured realm. A token issued by one Keycloak realm is silently accepted by a policy configured for a completely different realm, breaking tenant isolation. This issue affects Apache Camel: from 4.15.0 before 4.18.0.
Users are recommended to upgrade to version 4.18.0, which fixes the issue.
Severity ?
9.1 (Critical)
{
"affected": [],
"aliases": [
"CVE-2026-23552"
],
"database_specific": {
"cwe_ids": [
"CWE-346"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-02-23T09:17:00Z",
"severity": "CRITICAL"
},
"details": "Cross-Realm Token Acceptance Bypass in KeycloakSecurityPolicy Apache Camel Keycloak component.\u00a0\n\nThe Camel-Keycloak KeycloakSecurityPolicy does not validate the iss (issuer) claim of JWT tokens against the configured realm. A token issued by one Keycloak realm is silently accepted by a policy configured for a completely different realm, breaking tenant isolation.\nThis issue affects Apache Camel: from 4.15.0 before 4.18.0.\n\nUsers are recommended to upgrade to version 4.18.0, which fixes the issue.",
"id": "GHSA-c3f3-cc42-xr9v",
"modified": "2026-02-23T18:32:01Z",
"published": "2026-02-23T09:31:23Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-23552"
},
{
"type": "WEB",
"url": "https://camel.apache.org/security/CVE-2026-23552.html"
},
{
"type": "WEB",
"url": "https://github.com/oscerd/CVE-2026-23552"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2026/02/18/7"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
"type": "CVSS_V3"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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