# CVE-2026-43002

## Summary

- **CVE ID:** CVE-2026-43002
- **Severity:** MEDIUM
- **CVSS Score:** 5.3 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
- **CWE:** CWE-696
- **Published:** May 5, 2026
- **Last Modified:** May 6, 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 Products

- OpenStack — Horizon (25.6.0)

## References

- [CNA](https://bugs.launchpad.net/horizon/+bug/2150331)
- [CNA](https://www.openwall.com/lists/oss-security/2026/05/05/7)
- [CNA](https://security.openstack.org/ossa/OSSA-2026-009.html)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.36%
- **EPSS Percentile:** 29.8

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._