What’s Vulnerable › Vulnerabilities

CVE-2021-3654

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 26.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-03-02 · updated 2026-06-17
• Weakness: CWE-601

Description

A vulnerability was found in openstack-nova's console proxy, noVNC. By crafting a malicious URL, noVNC could be made to redirect to any desired URL.

Affected products

• OpenStack Nova: before 21.2.3; from 22.0.0 before 22.2.3; from 23.0.0 before 23.0.3 — fixed in 21.2.3, 22.2.3, 23.0.3
• nova_libvirt container provided by the Red Hat OpenStack Platform: 16.1, 16.2

How to fix

Upgrade to a fixed version: OpenStack Nova 21.2.3, 22.2.3, 23.0.3. Check the vendor advisory for mitigations.

References

• https://bugs.launchpad.net/nova/+bug/1927677
• https://bugs.python.org/issue32084
• https://bugzilla.redhat.com/show_bug.cgi?id=1961439
• https://opendev.org/openstack/nova/commit/04d48527b62a35d912f93bc75613a6cca606df66
• https://opendev.org/openstack/nova/commit/8906552cfc2525a44251d4cf313ece61e57251eb
• https://security.gentoo.org/glsa/202305-02
• https://security.openstack.org/ossa/OSSA-2021-002.html
• https://www.openwall.com/lists/oss-security/2021/07/29/2
• https://bugs.launchpad.net/nova/+bug/1927677
• https://bugs.python.org/issue32084
• https://bugzilla.redhat.com/show_bug.cgi?id=1961439
• https://opendev.org/openstack/nova/commit/04d48527b62a35d912f93bc75613a6cca606df66

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