CVE-2026-15943
Last modified
CVE-2026-15943 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. A flaw was found in the Keycloak keycloak-services component, which handles the management of identity providers. The issue occurs when a delegated administrator updates an OIDC identity provider using a masked client secret sentinel value.
Description
A flaw was found in the Keycloak keycloak-services component, which handles the management of identity providers. The issue occurs when a delegated administrator updates an OIDC identity provider using a masked client secret sentinel value. Due to improper validation, Keycloak reuses the existing real secret even if security-sensitive fields like the token URL have been changed, allowing an attacker to redirect and capture the secret.
Metrics
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:N
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | Red Hat Build of Keycloak | All versions |
References
Timeline
- Published
- Last Modified
- Status
- Awaiting Analysis
Frequently Asked Questions
What is CVE-2026-15943?
How severe is CVE-2026-15943?
How do I fix CVE-2026-15943?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-15925Improper TLS hostname verification in Snowflake Connector fo…9.2
- CVE-2026-15927A flaw was found in Red Hat Quay's repository-level mirror c…6.8
- CVE-2026-15928XMLRPC-C Library versions 1.07 through 1.67.01 are vulnerabl…8.2
- CVE-2026-15929Improper neutralization of special elements used in an SQL c…7.1
- CVE-2026-1593A weakness has been identified in itsourcecode Society Manag…9.8
- CVE-2026-1594A security vulnerability has been detected in itsourcecode S…9.8
- CVE-2026-15945A flaw was found in the group search functionality of the Ke…4.3
- CVE-2026-1595A vulnerability was detected in itsourcecode Society Managem…9.8
- CVE-2026-15957Smithy-RS is a Rust code generation and runtime framework th…8.7
- CVE-2026-1596A flaw has been found in D-Link DWR-M961 1.1.47. This vulner…8.8
- CVE-2026-15962The Fluent Forms Pro Add On Pack plugin for WordPress is vul…8.8
- CVE-2026-15966Permissive cross-domain security policy with untrusted domai…9.8
Are you affected by CVE-2026-15943?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST
