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TI-2026-23204 Aliases CVE-2026-29059

Windmill: SUPERADMIN_SECRET (rarely used) can be accessed publicly

Priority HIGH 70CWE-22Published · Updated

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-22 and the CVSS impact.

Summary

Windmill is an open-source developer platform for internal code: APIs, background jobs, workflows and UIs. Prior to version 1.603.3, an unauthenticated path traversal vulnerability exists in Windmill's get_log_file endpoint "(/api/w/{workspace}/jobs_u/get_log_file/{filename})". The filename parameter is concatenated into a file path without sanitization, allowing an attacker to read arbitrary files on the server using ../ sequences. This issue has been patched in version 1.603.3.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.03053 87th percentileScored 2026-11-07
Fix Fixed windmill (windmill-labs): 1.603.3

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
Windmill Labswindmillbefore 1.603.31.603.3Patch availableCNA
  • windmill VendorWindmill Labs Affected before 1.603.3 Fixed in 1.603.3 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:windmill:windmill:*:*:*:*:*:*:*:*before 1.603.3VulnerableWindmill Labs
  • cpe:2.3:a:windmill:windmill:*:*:*:*:*:*:*:* Versions before 1.603.3 Vulnerable ·Windmill Labs

Remediation

  • Fix · CNA windmill (windmill-labs) Fixed in 1.603.3

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-29059

References

Advisory 1

Other 1

  • TI-2026-18211 Windmill < 1.615.0 Operator Role Missing Authorization Checks RCE CVSS 4.0HIGH 8.7
  • TI-2026-26239 Code injection in windmill CVSS 4.0HIGH 7.3
  • TI-2026-21449 Windmill Exposes Workspace Slack OAuth Client Secrets to Non-Admin Workspace Members CVSS 3.1LOW 2.7

Sources

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