CVE-2026-47107
published 2026-05-19CVE-2026-47107: Windmill prior to 1.703.2 contains an incorrect default permissions vulnerability in nsjail sandbox configuration files where /etc is bind-mounted without…
PriorityP351high8.1CVSS 3.1
AVNACLPRLUINSUCHIHAN
EPSS
0.24%
15.0th percentile
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.
Affected
1 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| windmill-labs | windmill | < 1.703.2 | 1.703.2 |
CVSS provenance
nvdv3.18.1HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
nvdv4.08.6HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/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
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VulDB
windmill-labs windmill up to 1.703.1 Configuration /etc default permission
vuldb·2026-05-19·CVSS 9.3
CVE-2026-47107 [CRITICAL] windmill-labs windmill up to 1.703.1 Configuration /etc default permission
A vulnerability identified as critical has been detected in windmill-labs windmill up to 1.703.1. This issue affects some unknown processing of the file /etc of the component Configuration Handler. The manipulation leads to incorrect default permissions.
This vulnerability is traded as CVE-2026-47107. It is possible to initiate the attack remotely. There is no exploit available.
You should upgrade the affected component.
GHSA
GHSA-78hq-926c-2xmr: Windmill prior to 1
ghsa_unreviewed·2026-05-19
CVE-2026-47107 [CRITICAL] CWE-276 GHSA-78hq-926c-2xmr: Windmill prior to 1
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 victim workspaces across tenants.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://github.com/windmill-labs/windmill/commit/f8467f38c8a053117ce62f96684cfb15ef792f08https://github.com/windmill-labs/windmill/pull/9194https://github.com/windmill-labs/windmill/releases/tag/v1.703.2https://www.vulncheck.com/advisories/windmill-incorrect-default-permissions-in-nsjail-configurationhttps://github.com/windmill-labs/windmill/pull/9194
2026-05-19
Published