Relative Path Traversal in Argo CD - CVE-2023-40026
Published: September 27, 2023 / Updated: May 2, 2026
Vulnerability identifier: #VU129002
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2023-40026
CWE-ID: CWE-23
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Argo
Affected software:
Argo CD
Argo CD
Detailed vulnerability description
The vulnerability allows a remote user to disclose sensitive information.
The vulnerability exists due to relative path traversal in the Argo CD repo-server Helm chart handling when processing a specially crafted Helm file. A remote user can reference external Helm charts handled by the same repo-server to disclose sensitive information.
The issue can expose values or files from other existing Helm charts regardless of permissions because Helm chart paths were predictable.
How to mitigate CVE-2023-40026
Install security update from vendor's website.