CVE-2026-55069

HIGH

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

Title source: cna
STIX 2.1

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.

References (1)

Core 1
Core References

Scores

CVSS v3 8.7
EPSS 0.0019
EPSS Percentile 9.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact total

Details

CWE
CWE-916
Status published
Products (2)
kestra/kestra < 1.3.24
kestra-io/kestra < 1.3.24
Published Jun 26, 2026
Tracked Since Jun 27, 2026