What is CVE-2026-55069?

CVE-2026-55069 is a high-severity vulnerability in Kestra, classified under Use of Password Hash With Insufficient Computational Effort. CVSS score: 8.7/10. Published 2026-06-26.

How severe is CVE-2026-55069?

High severity. CVSS v3 base score is 8.7 out of 10.

Vulnerability in Kestra

CVE-2026-55069

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.

Published 2026-06-26 · last modified 2026-07-01.

CVSS v3 metric

CVSS v3 base score 8.7 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N.

EPSS exploit prediction

EPSS: 0.002 (13.8th percentile), scored 2026-09-25.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 14th percentile — 13.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Kestra
Kestra-Io Kestra — versions < 1.3.24

Weakness classification (CWE)

CWE-916 — Use of Password Hash With Insufficient Computational Effort

References

github.com/kestra-io/kestra/security/advisories/GHSA-m727-pcjm-j28h (Exploit, Mitigation, Vendor Advisory)

Frequently asked questions

What is CVE-2026-55069?: CVE-2026-55069 is a high-severity vulnerability in Kestra, classified under Use of Password Hash With Insufficient Computational Effort. CVSS score: 8.7/10. Published 2026-06-26.
How severe is CVE-2026-55069?: High severity. CVSS v3 base score is 8.7 out of 10.