6.0Medium
Openstack Horizon
CVE-2026-55748
OpenStack Horizon before 25.7.4 produces scripts for OpenStack RC file downloading that may have a crafted project name with shell metacharacters. NOTE: some parties consider this a security hardening opportunity to address certain types of user error, not a vulnerability.
What this means for your business
- It affects Openstack Horizon. It matters if your company, or a supplier that handles your data, runs it.
- An attacker can use it remotely, over a network, with an administrator login, but only after tricking someone into an action such as opening a file or a link.
- FIRST's prediction model gives it a 0.2% chance of attack attempts being seen in the next 30 days, ranking above 12% of all known flaws.
What to do
- 1Check whether your company or your suppliers run Openstack Horizon, and which version. The affected versions are listed further down this page.
- 2If you do, apply the vendor's fix. A patch or vendor advisory has been published.
Not sure if your company is exposed?
Fastnexa’s certified penetration testers can check whether attackers could use this flaw, or others like it, against your websites, apps and network. The full test is free for our first 10 founding clients until 31 December 2026.
Scoring
- CVSS
- 6.0 (v3.1)
- Vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:L- Weakness
- CWE-78
- Assigned by
- cve@mitre.org
Dates
- Published
- 2026-06-17
- Last modified
- 2026-09-22
- Sources
- NVD
Affected products
- Openstack Horizon8.0.0 - 25.3.3, 25.4.0 - 25.5.3, 25.6.0 - 25.7.4
As listed in the NVD configuration data. Not a statement about your estate.