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CERTFR-2026-AVI-0159
Vulnerability from certfr_avis - Published: 2026-02-12 - Updated: 2026-02-12
De multiples vulnérabilités ont été découvertes dans Keycloak. Elles permettent à un attaquant de provoquer un contournement de la politique de sécurité.
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
Impacted products
References
| Title | Publication Time | Tags | |||
|---|---|---|---|---|---|
|
|||||
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"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Keycloak versions ant\u00e9rieures \u00e0 26.5.3",
"product": {
"name": "Keycloak",
"vendor": {
"name": "Keycloak",
"scada": false
}
}
}
],
"affected_systems_content": "",
"content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
"cves": [
{
"name": "CVE-2026-1609",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-1609"
},
{
"name": "CVE-2026-1486",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-1486"
},
{
"name": "CVE-2026-1529",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-1529"
},
{
"name": "CVE-2025-14778",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-14778"
}
],
"initial_release_date": "2026-02-12T00:00:00",
"last_revision_date": "2026-02-12T00:00:00",
"links": [],
"reference": "CERTFR-2026-AVI-0159",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2026-02-12T00:00:00.000000"
}
],
"risks": [
{
"description": "Contournement de la politique de s\u00e9curit\u00e9"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans Keycloak. Elles permettent \u00e0 un attaquant de provoquer un contournement de la politique de s\u00e9curit\u00e9.",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans Keycloak",
"vendor_advisories": [
{
"published_at": "2026-02-10",
"title": "Bulletin de s\u00e9curit\u00e9 Keycloak keycloak-2653-released",
"url": "https://www.keycloak.org/2026/02/keycloak-2653-released"
}
]
}
CVE-2026-1529 (GCVE-0-2026-1529)
Vulnerability from cvelistv5 – Published: 2026-02-09 18:36 – Updated: 2026-02-10 12:40
VLAI?
EPSS
Title
Org.keycloak.services.resources.organizations: keycloak: unauthorized organization registration via improper invitation token validation
Summary
A flaw was found in Keycloak. An attacker can exploit this vulnerability by modifying the organization ID and target email within a legitimate invitation token's JSON Web Token (JWT) payload. This lack of cryptographic signature verification allows the attacker to successfully self-register into an unauthorized organization, leading to unauthorized access.
Severity ?
8.1 (High)
CWE
- CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.2 |
Unaffected:
26.2.13-1 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.2::el9 |
|||||||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||||||
Credits
Red Hat would like to thank Joy Gilbert (gwthr) and Reynaldo Immanuel for reporting this issue.
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CVE-2025-14778 (GCVE-0-2025-14778)
Vulnerability from cvelistv5 – Published: 2026-02-09 18:58 – Updated: 2026-02-10 01:04
VLAI?
EPSS
Title
Keycloak: incorrect ownership checks in /uma-policy/
Summary
A flaw was found in Keycloak. A significant Broken Access Control vulnerability exists in the UserManagedPermissionService (UMA Protection API). When updating or deleting a UMA policy associated with multiple resources, the authorization check only verifies the caller's ownership against the first resource in the policy's list. This allows a user (Owner A) who owns one resource (RA) to update a shared policy and modify authorization rules for other resources (e.g., RB) in that same policy, even if those other resources are owned by a different user (Owner B). This constitutes a horizontal privilege escalation.
Severity ?
5.4 (Medium)
CWE
- CWE-266 - Incorrect Privilege Assignment
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.2 |
Unaffected:
26.2.13-1 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.2::el9 |
|||||||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||||||
Credits
Red Hat would like to thank Joshua Rogers for reporting this issue.
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CVE-2026-1486 (GCVE-0-2026-1486)
Vulnerability from cvelistv5 – Published: 2026-02-09 18:36 – Updated: 2026-02-10 01:00
VLAI?
EPSS
Title
Org.keycloak.protocol.oidc.grants: disabled identity providers are still accepted for jwt authorization grant
Summary
A flaw was found in Keycloak. A vulnerability exists in the jwt-authorization-grant flow where the server fails to verify if an Identity Provider (IdP) is enabled before issuing tokens. The issuer lookup mechanism (lookupIdentityProviderFromIssuer) retrieves the IdP configuration but does not filter for isEnabled=false. If an administrator disables an IdP (e.g., due to a compromise or offboarding), an entity possessing that IdP's signing key can still generate valid JWT assertions that Keycloak accepts, resulting in the issuance of valid access tokens.
Severity ?
8.8 (High)
CWE
- CWE-358 - Improperly Implemented Security Check for Standard
Assigner
References
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Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.4 |
Unaffected:
26.4.9-1 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.4::el9 |
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Credits
Red Hat would like to thank Joy Gilbert Dan and Reynaldo Immanuel for reporting this issue.
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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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