Missing Authentication for Critical Function Affecting go.temporal.io/server/common/authorization package, versions >=1.24.0 <1.28.4>=1.29.0-135.0 <1.29.6>=1.30.0-143.0 <1.30.4
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-GOLANG-GOTEMPORALIOSERVERCOMMONAUTHORIZATION-15989805
- published12 Apr 2026
- disclosed10 Apr 2026
- creditTiberiu Baron
Introduced: 10 Apr 2026
CVE-2026-5724 Â (opens in a new tab)How to fix?
Upgrade go.temporal.io/server/common/authorization to version 1.28.4, 1.29.6, 1.30.4 or higher.
Overview
Affected versions of this package are vulnerable to Missing Authentication for Critical Function via the AdminService/StreamWorkflowReplicationMessages endpoint. An attacker can access replication streams and exfiltrate data by connecting to the frontend gRPC server without providing credentials.
Note: This is only exploitable if a replication target is configured and the attacker has knowledge of the cluster configuration, as the history service validates cluster IDs and peer membership before returning replication data.