Read the docs
TI-2026-51383 Aliases CVE-2026-73246

Kestra: Unauthenticated management `/worker` endpoint exposes live task configuration and plaintext credentials

Priority HIGH 72CWE-200Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Information disclosure, Security bypass
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-200 and CWE-306.

Summary

Kestra is an open-source, event-driven orchestration platform. Prior to 2.0.0-rc6, Kestra's worker/src/main/java/io/kestra/worker/endpoint/WorkerEndpoint.java serves GET /worker without authentication and serializes the complete live Task object, which can expose commands, environment variables, HTTP headers, connection details, plaintext credentials, and execution identifiers while the main API on port 8080 remains protected. This issue is fixed in 2.0.0-rc6.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00597 48th percentileScored 2026-11-07
Fix Fixed kestra (kestra-io): 1.3.31

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Kestrakestrabefore 1.3.311.3.31Patch availableCNA
  • kestra VendorKestra Affected before 1.3.31 Fixed in 1.3.31 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:kestra:kestra:*:*:*:*:*:*:*:*——Kestra
  • cpe:2.3:a:kestra:kestra:*:*:*:*:*:*:*:* Versions — — ·Kestra

Remediation

  • Fix · CNA kestra (kestra-io) Fixed in 1.3.31

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-73246

References

Other 1

  • TI-2026-36769 Kestra: Unauthenticated Remote Code Execution via Authentication Bypass in `AuthenticationFilter` KEVCVSS 3.1CRITICAL 10.0
  • TI-2026-38637 Kestra: Unauthenticated RCE via /configs path-suffix auth-filter bypass CVSS 3.1CRITICAL 10.0
  • TI-2026-28138 Kestra v1.3.3 and before is vulnerable to SQL Injection. CVSS 3.1CRITICAL 9.8
  • TI-2026-51384 Kestra: SSRF via Pebble http() function allows unauthenticated access to internal services & cloud metadata CVSS 3.1HIGH 8.6
  • TI-2026-26858 Kestra: Remote Code Execution via SQL Injection CVSS 3.1CRITICAL 10.0
  • TI-2026-39775 Kestra BasicAuth Password Stored as SHA-512 Enables Offline Brute-Force Attack CVSS 3.1HIGH 8.7
See all 15 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences