CVE-2023-40026Network attack vector

Cross-chart file disclosure via predictable Helm paths

Published Sep 27, 2023 · Updated Sep 20, 2024

Path traversal in Argo CD before 2.3 allows remote authenticated users to read values and files from other Helm charts. The repo-server places Helm chart working directories at predictable paths, letting a crafted chart reference and render resources outside its authorized chart. Application creation or update privileges and shared repo-server handling are required; exposure is limited to files readable by that service.

CVSS severity5.0
Medium
EPSS probability0.50%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in Argo CD before 2.3 allows remote authenticated users to read values and files from other Helm charts. The repo-server places Helm chart working directories at predictable paths, letting a crafted chart reference and render resources outside its authorized chart. Application creation or update privileges and shared repo-server handling are required; exposure is limited to files readable by that service.

The record

CVE
CVE-2023-40026
Published
Sep 27, 2023
Updated
Sep 20, 2024
Vendor
Argo Project
Product
Argo CD
Classifications
CWE-23, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 27, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 20, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 2.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Argo Project · Argo CDversion=< 2.3

Published CVSS scores

4.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
5.0GitHubCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-23Relative Path Traversal
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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