CVE-2026-29059

Plain English Summary

AI-powered analysis for quick understanding

An attacker can exploit a flaw in Windmill to read any file on the server by manipulating the filename in a specific API request, as long as they know the file's path. This vulnerability affects versions before 1.603.3 and has been fixed in the latest update.

Technical Description

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.

CVSS Vector Analysis

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
Confidentiality ImpactHigh
Integrity ImpactHigh
Availability ImpactHigh
ScopeChanged

Vector String

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Exploit Resources

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Official References

Est. Bounty
$1,000($500-$1K)
Vendor Response
Grade APatched in 3 days

Quick Information

Published

Mar 6, 2026

about 1 month ago

Last Modified

Mar 9, 2026

30 days ago