CVE-2026-40212 PUBLISHED

Assigner: mitre
Reserved: 10.04.2026 Published: 10.04.2026 Updated: 10.04.2026

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.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CVSS Score: 5.4

Attack Vector	Network	Scope	Changed
Attack Complexity	Low	Confidentiality Impact	Low
Privileges Required	Low	Integrity Impact	Low
User Interaction	Required	Availability Impact	None

CVSS 3.1

Product Status

Vendor	OpenStack
Product	Skyline
Versions	Default: unaffected affected from 0 to 5.0.1 (excl.) Version 6.0.0 is affected Version 7.0.0 is affected

References

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

Problem Types

CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') CWE