CVE-2026-47107: windmill · Incorrect Default Permissions
Affects windmillSource CVE Database V5
Not known to be exploited · CVSS 8.6 High : upgrade to 1.703.2 soon.
Data as of 30 Oct 2026, 11:52 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 20% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 1.703.2
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 19 May 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.
What to do
Upgrade windmill-labs/windmill and windmill to 1.703.2.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| windmill-labswindmill | Affected
| Fixed in– |
GitHubwindmill-labs/windmillpkg:github/windmill-labs/windmillOther threats | Affected
| Fixed in
|
GitHubwindmillpkg:github/windmillOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
If you cannot patch yet, restrict authenticated user access to the affected versions and avoid running untrusted scripts in the sandbox environment.
Description
Windmill prior to 1.703.2 contains an incorrect default permissions vulnerability in nsjail sandbox configuration files where /etc is bind-mounted without read-write restrictions, allowing authenticated users to write arbitrary entries to /etc/hosts, /etc/resolv.conf, and /etc/ssl/certs/ca-certificates.crt from within script execution sandboxes. Attackers can exploit persistent poisoned entries across all subsequent script executions on the same worker pod to redirect hostnames, intercept DNS queries, perform transparent HTTPS man-in-the-middle attacks, and intercept WM_TOKEN JWTs to gain workspace-admin access to other users' workspaces.
References
- github.com/windmill-labs/windmill/releases/tag/v1.703.2 (opens in a new tab)
- github.com/windmill-labs/windmill/pull/9194 (opens in a new tab)
- github.com/windmill-labs/windmill/commit/f8467f38c8a053117ce62f96684cfb15ef792f08 (opens in a new tab)
- vulncheck.com/advisories/windmill-incorrect-default-permissions-in-nsjail-configuration (opens in a new tab)