CVE-2026-55748 json
OpenStack Horizon RC file generation does not escape special characters in project names
published 2026-06-17 4 mo ago modified 2026-10-26 14 d ago also GHSA-6wrm-x65g-hr4p , PYSEC-2026-2519 , EUVD-2026-37723
- cvss
- 6.0
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 16%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- OpenStack Horizon 25.3.3, 25.5.3, 25.7.4
- horizon Debian 12 3:23.0.0-5+deb12u2
- horizon Debian 13 3:25.3.0-3+deb13u1
- horizon Debian 14 3:25.7.3-2
debian advisories DEBIAN-CVE-2026-55748
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2026-55748 updated cvss 6.0
OpenStack Horizon: OpenStack Horizon: Information disclosure or integrity compromise via crafted project name with shell metacharacters
-
Red Hat OpenStack Platform 13 (Queens) rhosp13/openstack-horizon Red Hat OpenStack Platform 16.2 rhosp-rhel8/openstack-horizon Red Hat OpenStack Platform 17.1 rhosp-rhel9/openstack-horizon Red Hat OpenStack Platform 18.0 rhoso/openstack-horizon-rhel9affected: workaround, no fix available “Fix deferred”
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 4 mo ago
Exploit prediction
0.25% chance of exploitation in the next 30 days, higher than 16% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.0 | CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:L |
| NVD | 3.1 | 6.8 | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H |
| GitHub | 3.1 | 6.0 | CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:L |
| OSV | 3.1 | 6.0 | CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:L |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | horizon | <=25.7.3 |
no fix listed |
Affected products
- OpenStack Horizon
Classification
- Weakness
-
- CWE-78 Improper Neutralization of Special Elements used in an OS Command
References
-
wiki.openstack.org
/wiki/OSSN/OSSN-0097
web, patch, vendor-advisory
-
launchpad.net
/bugs/2152240
web, issue-tracking, vendor-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-55748
advisory
-
github.com
/openstack/horizon
package
-
pypi.org
/project/horizon
package
-
github.com
/advisories/GHSA-6wrm-x65g-hr4p
advisory
Sources
- CVE List CVE-2026-55748
- GitHub Advisory GHSA-6wrm-x65g-hr4p
- NVD CVE-2026-55748
- OSV PYSEC-2026-2519
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