Argo CD: Kubernetes Secret Extraction via ArgoCD ServerSideDiff via sensitive annotations

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Summary

CVECVE-2026-45737
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-07-15 20:17:04 UTC
Updated2026-07-15 20:29:17 UTC
DescriptionArgo CD is a declarative, GitOps continuous delivery tool for Kubernetes. From 3.2.0 until 3.2.12, 3.3.10, and 3.4.2, Argo CD ServerSideDiff can expose Kubernetes Secret values embedded in the kubectl.kubernetes.io/last-applied-configuration annotation because HideSecretData(target, live, ...) does not fully sanitize ResourceDiff.TargetState and LiveState predicted live Secret objects, allowing sensitive data, stringData, and annotations to appear in UI or CLI diffs. This issue is fixed in versions 3.2.12, 3.3.10, and 3.4.2.

Risk And Classification

Primary CVSS: v3.1 6.3 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N

Problem Types: CWE-200 | CWE-212 | CWE-200 CWE-200: Exposure of Sensitive Information to an Unauthorized Actor | CWE-212 CWE-212: Improper Removal of Sensitive Information Before Storage or Transfer

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary6.3MEDIUMCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
3.1CNADECLARED6.3MEDIUMCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Argoproj Argo-cd affected >= 3.2.0, < 3.2.12 Not specified
CNA Argoproj Argo-cd affected >= 3.3.9, < 3.3.10 Not specified
CNA Argoproj Argo-cd affected >= 3.4.1, < 3.4.2 Not specified

References

ReferenceSourceLinkTags
github.com/argoproj/argo-cd/releases/tag/v3.2.12 [email protected] github.com
github.com/argoproj/argo-cd/releases/tag/v3.4.2 [email protected] github.com
github.com/argoproj/argo-cd/commit/7879e6322465080a82d152bf00f2b92e0f36c658 [email protected] github.com
github.com/argoproj/argo-cd/commit/ac11bec9986807adc8886ef1181eced7347ef5c6 [email protected] github.com
github.com/argoproj/argo-cd/security/advisories/GHSA-rg3g-4rw9-gqrp [email protected] github.com
github.com/argoproj/argo-cd/releases/tag/v3.3.10 [email protected] github.com
github.com/argoproj/argo-cd/commit/bcb4298afc9fcff5f5d69f4e1db2d0a75983f42c [email protected] github.com
github.com/argoproj/argo-cd/commit/87e9148320749693624d08e3d6fa2cc217c672a0 [email protected] github.com
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