CVSS 3.1
5.3 mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:LCVE-2026-43002
Medium (5.3) in openstack horizon. EPSS 0.4% chance of exploitation in the next 30 days. Fixed in horizon 25.7.3.
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.
Severity
- EPSS
- 0.4% chance of exploitation in the next 30 days; higher than 29% of CVEs (scores of 2026-10-31)
- CWE
- CWE-696
- Published
- Modified
- Record from
- the NVD, synced
Affected
- openstack:horizon
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-vxvf-xvm3-p8j5 | PyPI | horizon | >=25.6 <25.7.3 | 25.7.3 |
| PYSEC-2026-2520 | PyPI | horizon | >=25.6 <25.7.3 | 25.7.3 |