CVE-2025-10044A flaw was found in Keycloak.
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
A flaw was found in Keycloak. Keycloak’s account console and other pages accept arbitrary text in the error_description query parameter. This text is directly rendered in error pages without validation or sanitization. While HTML encoding prevents XSS, an attacker can craft URLs with misleading messages (e.g., fake support phone numbers or URLs), which are displayed within the trusted Keycloak UI. This creates a phishing vector, potentially tricking users into contacting malicious actors.
- CVSS
- 4.3 MEDIUM (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
- Weakness (CWE)
- CWE-79
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Deferred
- Record last updated
- Oct 18, 2026
- First seen by InfoSec Signals
- Oct 18, 2026
Affected products
No affected products are listed yet.
References
- https://access.redhat.com/errata/RHSA-2025:16399
- https://access.redhat.com/errata/RHSA-2025:16400
- https://access.redhat.com/errata/RHSA-2025:19923
- https://access.redhat.com/errata/RHSA-2025:19925
- https://access.redhat.com/security/cve/CVE-2025-10044
- https://bugzilla.redhat.com/show_bug.cgi?id=2393551
- https://github.com/keycloak/keycloak/pull/42443
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.