CVE-2026-55069

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

HIGH
8.7
CVSS Score
Published: June 26, 2026 at 08:50 PM UTC
Updated: October 25, 2026 at 05:10 PM UTC
2 products affected across 2 vendorsKestraKestra

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Severity
HIGH8.7
Exploit prediction
EPSS 0.2%
SSVC
PoC

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 1.3.24
Affected range stops below 1.3.24, so it looks safe — our inference, not a vendor statement
v < 1.3.24
Affected range stops below 1.3.24, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (1)

x_refsource_CONFIRMExploitMitigationVendor Advisory
Source: cverecord
https://github.com/kestra-io/kestra/security/advisories/GHSA-m727-pcjm-j28h

SSVC — Action Prioritization

SSVCPoCNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.7HIGHGitHub_M
Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-916

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