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CVE-2026-55069— Kestra BasicAuth Password Stored as SHA-512 Enables Offline Brute-Force Attack

CVSS 8.7 · High EPSS 0.16% · P5

Affected Version Matrix 1

VendorProductVersion RangeStatus
kestra-iokestra< 1.3.24affected
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I. Basic Information for CVE-2026-55069

Vulnerability Information
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Vulnerability Title
Kestra BasicAuth Password Stored as SHA-512 Enables Offline Brute-Force Attack
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
使用具有不充分计算复杂性的口令哈希
Source: NVD (National Vulnerability Database)
Vulnerability Title
kestra-io Kestra 加密问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
kestra是Kestra公司开源的一个工作流自动化平台。 kestra-io Kestra 1.3.24之前版本存在加密问题漏洞，该漏洞源于BasicAuth身份验证组件问题，可能导致获得PostgreSQL数据库读取权限的攻击者利用SHA-512的高计算速度离线恢复管理员密码，在Kubernetes部署中进一步读取集群ServiceAccount Token和所有K8s Secrets，实现垂直权限提升。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
kestra-iokestra < 1.3.24 -

II. Public POCs for CVE-2026-55069

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium
Qwen3.6-35B-A3B · 7982 chars
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III. Intelligence Information for CVE-2026-55069

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Vendor Advisories for CVE-2026-55069 (1)

Same Patch Batch · kestra-io · 2026-06-26 · 6 CVEs total

CVE-2026-5357610.0 CRITICALKestra: Unauthenticated RCE via /configs path-suffix auth-filter bypass
CVE-2026-4986910.0 CRITICALKestra: Unauthenticated Remote Code Execution via Authentication Bypass in `Authentication
CVE-2026-458077.7 HIGHKestra: Path traversal via URL-encoded "%2E%2E" in execution and namespace file endpoints
CVE-2026-499847.7 HIGHKestra: Path traversal in `LocalStorage` allows any authenticated user to read arbitrary s
CVE-2026-535776.5 MEDIUMKestra: Cross-Execution File Read via Preview Endpoint (IDOR)

IV. Related Vulnerabilities

Same product: kestra
Same vendor: kestra-io
Same weakness: CWE-916

V. Comments for CVE-2026-55069

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