Public proof of conceptFix available

CVE-2026-22683

A public proof of concept exists; no exploitation attested.

Published2026-04-07
WeaknessCWE-862

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Windmill versions 1.56.0 through 1.614.0 contain a missing authorization vulnerability that allows users with the Operator role to perform prohibited entity creation and modification actions via the backend API. Although Operators are documented and priced as unable to create or modify entities, the API does not enforce the Operator restriction on workspace endpoints, allowing an Operator to create and update scripts, flows, apps, and raw_apps. Since Operators can also execute scripts via the jobs API, this allows direct privilege escalation to remote code execution within the Windmill deployment. This vulnerability has existed since the introduction of the Operator role in version 1.56.0.

Timeline

dates in UTC

2026-04-0717:16CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2026-22683?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2026-22683?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Nextcloud flow

Branch	Affected	Fixed in	Source
1.x	≥ 1.0.0, ≤ 1.2.2	no fix published	NVD

Windmill

Branch	Affected	Fixed in	Source
1.x	≥ 1.56.0, ≤ 1.614.0	no fix published	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Advisories and patches

apps.nextcloud.comRelease Notes
chocapikk.comVendor Advisory
github.comPatch
github.comRelease Notes

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVE recordread 2026-10-23
CISA-ADPSSVC decisionpoc2026-04-08
OpenCVESSVC decisionpoc—
CNACVSS 4.08.7read 2026-10-23
CNACVSS 3.18.8read 2026-10-23
CNAweakness (CWE)CWE-862read 2026-10-23
FIRST EPSSEPSS score2.6 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 4.0 vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/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
Published: 2026-04-07
Last Modified: 2026-06-17
NVD status: Analyzed

Frequently asked questions

What is CVE-2026-22683?

Is CVE-2026-22683 actively exploited?

A proof-of-concept exploit exists for CVE-2026-22683, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2026-22683?

CVE-2026-22683 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

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