SB20260502155 - Improper Removal of Sensitive Information Before Storage or Transfer in Argo CD

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Main Vulnerability Database SB20260502155

SB20260502155 - Improper Removal of Sensitive Information Before Storage or Transfer in Argo CD

Published: May 2, 2026

Security Bulletin ID SB20260502155
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Improper Removal of Sensitive Information Before Storage or Transfer (CVE-ID: CVE-2026-43824)

The vulnerability allows a remote user to disclose sensitive information and affect integrity across a changed scope.

The vulnerability exists due to improper removal of sensitive information before transfer in the ServerSideDiff endpoint when processing Server-Side Apply dry-run responses for Secrets. A remote user can call the ServerSideDiff endpoint to disclose sensitive information and affect integrity across a changed scope.

Exploitation requires Argo CD application get permissions, and the defense bypass occurs when the Application has the annotation argocd.argoproj.io/compare-options: IncludeMutationWebhook=true. Secret extraction succeeds when the Secret data fields are owned by at least one non-Argo CD server-side apply field manager.


Remediation

Install update from vendor's website.

References