PatchTheCVECVE-2026-26964: Windmill is an open-source developer platform for internal code: APIs, background jobs, workflows and UIs
CVE-2026-26964 is a low-severity flaw (CVSS 2.7) affecting windmill. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Windmill is an open-source developer platform for internal code: APIs, background jobs, workflows and UIs. Versions 1.634.6 and below allow non-admin users to obtain Slack OAuth client secrets, which should only be accessible to workspace administrators. The GET /api/w/{workspace}/workspaces/get_settings endpoint returns the slack_oauth_client_secret to any authenticated workspace member, regardless of their admin status. It is expected behavior
Why this priority
- Public exploit reference
A fixed release or distro patch exists.
Risk facts
| CVSS score | 2.7 (Low) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | High |
| User interaction | None |
| EPSS exploit chance | 0.3% (top 75%) |
| CISA exploited list | No |
| Weakness | CWE-200 |
| Published | 2026-02-20 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-26964?
windmill: upgrade to 1.635.0. Exact commands for each OS are on this page.
Is CVE-2026-26964 being exploited?
CVE-2026-26964 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-26964 affect?
CVE-2026-26964 affects windmill. Severity is low (CVSS 2.7). Windmill is an open-source developer platform for internal code: APIs, background jobs, workflows and UIs. Versions 1.634.6 and below allow non-admin users to obtain Slack OAuth client secrets, which should only be accessible to workspace
How urgent is CVE-2026-26964?
Priority 21/100. Public exploit reference
Software pages
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