# CVE-2026-15943

## Summary

- **CVE ID:** CVE-2026-15943
- **Severity:** MEDIUM
- **CVSS Score:** 5.5 (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:N)
- **CWE:** CWE-1288
- **Published:** Jul 17, 2026
- **Last Modified:** Aug 31, 2026

## 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.

## Affected Products

No affected products listed.

## References

- [CNA](https://access.redhat.com/security/cve/CVE-2026-15943)
- [CNA](https://bugzilla.redhat.com/show_bug.cgi?id=2501270)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.34%
- **EPSS Percentile:** 26.7

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._