CVE-2026-40212

CVSS 5.4 MEDIUMEPSS 0.2%CWE-79

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 5.4EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

10 Apr 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

OpenStack Skyline before 5.0.1, 6.0.0, and 7.0.0 has a DOM-based Cross-Site Scripting (XSS) vulnerability in the console because document.write is used unsafely, which is relevant in scenarios where administrators use the console web interface to view instance console logs.

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Affected products

OpenStack · Skyline

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References

https://bugs.launchpad.net/skyline-console/+bug/2138575 https://review.opendev.org/973351 https://security.openstack.org/ossa/OSSA-2026-006.html https://www.openwall.com/lists/oss-security/2026/04/09/30