CVE-2024-29006: Apache CloudStack: x-forwarded-for HTTP header parsed by default

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-04-04 · updated 2026-06-17
Weakness: CWE-290

Description

By default the CloudStack management server honours the x-forwarded-for HTTP header and logs it as the source IP of an API request. This could lead to authentication bypass and other operational problems should an attacker decide to spoof their IP address this way. Users are recommended to upgrade to CloudStack version 4.18.1.1 or 4.19.0.1, which fixes this issue.

Affected products

Apache Software Foundation Apache CloudStack: from 4.11.0.0 before 4.18.1.1; 4.19.0.0 — fixed in 4.18.1.1

How to fix

Upgrade to a fixed version: Apache Software Foundation Apache CloudStack 4.18.1.1. Check the vendor advisory for mitigations.

References

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