How severe is CVE-2026-29059?

CVE-2026-29059 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2026-29059 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-29059?

CVE-2026-29059 affects Windmill. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-29059?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-29059 have an EU (EUVD) identifier?

Yes. CVE-2026-29059 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-10017.

When was CVE-2026-29059 published?

CVE-2026-29059 was published on 2026-03-06 and last updated on 2026-06-17.

CVE-2026-29059

CVE-2026-29059 is a high-severity vulnerability in Windmill with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v4: 6.9
EPSS exploit prediction: 3% (83rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-10017
Weakness: CWE-22
Affected product: Windmill
Published: 2026-03-06
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2026-29059?: 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.
How severe is CVE-2026-29059?: CVE-2026-29059 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2026-29059 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-29059?: CVE-2026-29059 affects Windmill. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-29059?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-29059 have an EU (EUVD) identifier?: Yes. CVE-2026-29059 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-10017.
When was CVE-2026-29059 published?: CVE-2026-29059 was published on 2026-03-06 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:windmill:windmill:*:*:*:*:*:*:*:*

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