CVE-2026-43002
MEDIUM5.3EPSS 0.10%OpenStack Horizon has Incorrect Behavior Order
Published: 5/5/2026Modified: 5/13/2026
Description
An issue was discovered in OpenStack Horizon 25.6 and 25.7 before 25.7.3. There is a write operation to the session storage backend before authentication and thus storage can be exhausted by unauthenticated requests. This is a regression of the CVE-2014-8124 fix.
Affected packages (2)
- Debian/horizonfrom 0, < 3:25.7.3-1
- PyPI/horizon>= 25.6, < 25.7.3
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
References (6)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2026-43002
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2026-43002
- PATCHhttps://github.com/openstack/horizon
- WEBhttps://bugs.launchpad.net/horizon/+bug/2150331
- WEBhttps://security.openstack.org/ossa/OSSA-2026-009.html
- WEBhttps://www.openwall.com/lists/oss-security/2026/05/05/7