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CVE-2026-15943

5.5 mediumEPSS 0.3%

Medium (5.5) in redhat build of keycloak. EPSS 0.3% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

5.5 medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:N
EPSS
0.3% chance of exploitation in the next 30 days; higher than 27% of CVEs (scores of 2026-10-31)
CWE
CWE-1288
Published
Modified
Record from
the NVD, synced

Affected

References

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