Vulnerability · Published Jun 26, 2026 · Assigned by GitHub_M
CVE-2026-55069Kestra BasicAuth Password Stored as SHA-512 Enables Offline Brute-Force Attack
High 8.7
In plain English
A high-severity security flaw in kestra from kestra-io. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 16% of all known vulnerabilities).
Official description
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.
Affected products (as reported)
Weakness: CWE-916 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
References
- https://github.com/kestra-io/kestra/security/advisories/GHSA-m727-pcjm-j28h x_refsource_CONFIRM