PT-2026-37090 · Openstack · Openstack Horizon

Erichen · Published 2026-05-05 · Updated 2026-05-06 · CVE-2026-43002

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Name of the Vulnerable Software and Affected Versions OpenStack Horizon versions 25.6 through 25.7.2 OpenStack Horizon versions 25.7 through 25.7.2

Description A write operation occurs in the session storage backend before authentication, allowing unauthenticated requests to exhaust the storage. Specifically, the login view stores a post-login redirect URL in the server-side session before the user is authenticated, which can be exploited to cause a session flood.

Recommendations Update to version 25.7.3.

Exploit

Fix

Weakness Enumeration

CWE-696

Related Identifiers

CVE-2026-43002

GHSA-VXVF-XVM3-P8J5

Affected Products

Openstack Horizon

References · 16

• 🔥 https://bugs.launchpad.net/horizon/+bug/2150331 · Exploit
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-43002 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-43002 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-43002 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-43002 · Security Note
• https://cve.org/CVERecord?id=CVE-2026-43002 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-43002 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-vxvf-xvm3-p8j5 · Vendor Advisory
• https://github.com/openstack/horizon · Note
• https://t.me/CVEtracker/52776 · Telegram Post
• https://twitter.com/CVEnew/status/2051741668496285901 · Twitter Post
• https://t.me/cveNotify/162289 · Telegram Post
• https://security.openstack.org/ossa/OSSA-2026-009.html · Note
• https://twitter.com/infoflowcloud/status/2051742924342284493 · Twitter Post
• https://twitter.com/oss_security/status/2051696827200655411 · Twitter Post