CVE-2026-43002

State: Published
Severity: 5.3 Medium
Published: May 5, 2026
Updated: May 6, 2026
Reserved: May 1, 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.

Scores

CVSS	Score	Vector	Source
3.1	5.3 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L	mitre

Weaknesses

CWE-696 Incorrect Behavior Order

Affected Products

Product	Versions
HorizonOpenStack	25.6.0 to before 25.7.3Affected

References

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

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