CVE-2026-55069 PUBLISHED

Kestra BasicAuth Password Stored as SHA-512 Enables Offline Brute-Force Attack

Assigner: GitHub_M
Reserved: 16.06.2026 Published: 26.06.2026 Updated: 26.06.2026

Kestra is an open-source, event-driven orchestration platform. Prior to 1.3.24, this vulnerability exists in the BasicAuth authentication component of the Kestra OSS workflow orchestration platform. An attacker who gains read access to the PostgreSQL database can exploit SHA-512's high computation speed to recover the administrator password offline. In Kubernetes deployments, a successful crack further enables reading of the cluster ServiceAccount Token and all K8s Secrets, achieving vertical privilege escalation. This vulnerability is fixed in 1.3.24.

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
CVSS Score: 8.7

Product Status

Vendor kestra-io
Product kestra
Versions
  • Version < 1.3.24 is affected

References

Problem Types

  • CWE-916: Use of Password Hash With Insufficient Computational Effort CWE