Staging Environment: Content and features may be unstable or change without notice.
Advisory details: pypa / horizon/PYSEC-2026-2519
Advisory ID pypa/horizon/PYSEC-2026-2519
Aliases CVE-2026-55748
GHSA-6wrm-x65g-hr4p
PYSEC-2026-2519
Summary OpenStack Horizon RC file generation does not escape special characters in project names 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.
Status Published
Exploitability 0.5
Weighted Severity 5.4
Risk 2.7
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (0)
There are no known CWE.
System Score Found at
cvssv3.1 6.0 https://github.com/pypa/advisory-database/blob/main/vulns/horizon/PYSEC-2026-2519.yaml
Reference id Reference type URL
https://github.com/advisories/GHSA-6wrm-x65g-hr4p
https://github.com/openstack/horizon
https://nvd.nist.gov/vuln/detail/CVE-2026-55748
https://pypi.org/project/horizon
2152240 Other https://launchpad.net/bugs/2152240
OSSN-0097 Other https://wiki.openstack.org/wiki/OSSN/OSSN-0097

No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:L Found at https://github.com/pypa/advisory-database/blob/main/vulns/horizon/PYSEC-2026-2519.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

Vector: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2026-06-17T15:40:00Z/

Decision: Track

Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2026/55xxx/CVE-2026-55748.json

Source Advisory: vulnrichment/CVE-2026-55748

View SSVC decision tree 
[{'Exploitation': 'none'},
 {'Automatable': 'no'},
 {'Technical Impact': 'total'},
 {'Mission Prevalence': 'minimal'},
 {'Public Well-being Impact': 'material'},
 {'Mission & Well-being': 'medium'}]