VMware Avi Load Balancer up to 22.1.7/30.2.6/31.2.2/32.1.1 File Path Validation path traversal

Summaryinfo

A vulnerability was found in VMware Avi Load Balancer up to 22.1.7/30.2.6/31.2.2/32.1.1. It has been classified as critical. The impacted element is an unknown function of the component File Path Validation. This manipulation causes path traversal. This vulnerability is registered as CVE-2026-47871. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability classified as critical was found in VMware Avi Load Balancer up to 22.1.7/30.2.6/31.2.2/32.1.1. Affected by this vulnerability is an unknown code block of the component File Path Validation. The manipulation with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

VMware Avi Load Balancer contains a directory traversal vulnerability. Flaws in file path validation allow malicious, authenticated network users to perform directory traversal attacks. Affected versions: 32.1.1 (fixed in 32.1.2) 31.1.1 through 31.2.2 (fixed in 31.2.2-2p3) 30.1.1 through 30.2.6 (fixed in 30.2.7) 22.1.1 through 22.1.7 (fixed in 30.2.7)

It is possible to read the advisory at support.broadcom.com. This vulnerability is known as CVE-2026-47871 since 05/20/2026. The exploitation appears to be easy. The attack can be launched remotely. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/18/2026). The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

Upgrading to version 30.2.7, 31.2.2-2p3 or 32.1.2 eliminates this vulnerability.

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Productinfo

Type

• Multimedia Processing Software

Vendor

• VMware

Name

• Avi Load Balancer

Version

• 22.1.0
• 22.1.1
• 22.1.2
• 22.1.3
• 22.1.4
• 22.1.5
• 22.1.6
• 22.1.7
• 30.2.0
• 30.2.1
• 30.2.2
• 30.2.3
• 30.2.4
• 30.2.5
• 30.2.6
• 31.2.0
• 31.2.1
• 31.2.2
• 32.1.0
• 32.1.1

License

• commercial

Website

• Vendor: https://www.vmware.com/

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