Incorrect Behavior Order Affecting horizon package, versions <3:25.7.3-1


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.37% (29th percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-HORIZON-16424051
  • published6 May 2026
  • disclosed5 May 2026

Introduced: 5 May 2026

CVE-2026-43002  (opens in a new tab)
CWE-696  (opens in a new tab)

How to fix?

Upgrade Debian:unstable horizon to version 3:25.7.3-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream horizon package and not the horizon package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

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.