CVE-2026-23696
CVE-2026-23696 is a critical-severity vulnerability with a CVSS 3.x base score of 9.9. 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-89.
Key facts
- Severity: Critical (CVSS 3.x base score 9.9)
- CVSS v4: 9.4
- EPSS exploit prediction: 5% (91st percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-19748
- Weakness: CWE-89
- Published:
- Last modified:
Description
Windmill CE and EE versions 1.276.0 through 1.603.2 contain an SQL injection vulnerability in the folder ownership management functionality that allows authenticated attackers to inject SQL through the owner parameter. An attacker can use the injection to read sensitive data such as the JWT signing secret and administrative user identifiers, forge an administrative token, and then execute arbitrary code via the workflow execution endpoints.
Frequently asked questions
- What is CVE-2026-23696?
- Windmill CE and EE versions 1.276.0 through 1.603.2 contain an SQL injection vulnerability in the folder ownership management functionality that allows authenticated attackers to inject SQL through the owner parameter. An attacker can use the injection to read sensitive data such as the JWT signing secret and administrative user identifiers, forge an administrative token, and then execute arbitrary code via the workflow execution endpoints.
- How severe is CVE-2026-23696?
- CVE-2026-23696 has a CVSS 3.x base score of 9.9, rated critical severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2026-23696 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2026-23696?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- Does CVE-2026-23696 have an EU (EUVD) identifier?
- Yes. CVE-2026-23696 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-19748.
- When was CVE-2026-23696 published?
- CVE-2026-23696 was published on 2026-04-07 and last updated on 2026-06-17.
References
- https://apps.nextcloud.com/apps/flow/releases
- https://chocapikk.com/posts/2026/windfall-nextcloud-flow-windmill-rce/
- https://github.com/Chocapikk/Windfall
- https://github.com/windmill-labs/windmill/commit/942fb629210ebb287f48467d1535ffde3a3eeafe
- https://github.com/windmill-labs/windmill/releases/tag/v1.603.3
- https://www.vulncheck.com/advisories/windmill-file-ownership-handling-sqli-rce
- https://www.windmill.dev/
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