Exploit for Exposure of Sensitive Information to an Unauthorized Actor in Argoproj Argo_Cd

CVE-2026-42880 — ArgoCD Secret Exposure via ServerSideDiff A...

CVE-2026-43824

A flaw was found in Argo CD. The ServerSideDiff feature allows for the reading of cleartext Kubernetes Secret data. This vulnerability could lead to information disclosure, potentially exposing sensitive configuration details within the Kubernetes environment. Mitigation Mitigation for this issue...

Improper Removal of Sensitive Information Before Storage or Transfer

Overview Affected versions of this package are vulnerable to Improper Removal of Sensitive Information Before Storage or Transfer in the HideSecretData function that fails to mask predictedLive argument for --server-side-diff command. An attacker can extract last-applied-configuration which may...

GHSA-RG3G-4RW9-GQRP Argo CD: Kubernetes Secret Extraction via ArgoCD ServerSideDiff via sensitive annotations

Summary The original fix for GHSA-3v3m-wc6v-x4x3 is incomplete. argocd app diff --server-side-diff can still expose Kubernetes Secret values embedded in the kubectl.kubernetes.io/last-applied-configuration annotation. The prior fix masks top-level Secret data in ServerSideDiff responses, but it...

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

Summary The original fix for GHSA-3v3m-wc6v-x4x3 is incomplete. argocd app diff --server-side-diff can still expose Kubernetes Secret values embedded in the kubectl.kubernetes.io/last-applied-configuration annotation. The prior fix masks top-level Secret data in ServerSideDiff responses, but it...

Improper Removal of Sensitive Information Before Storage or Transfer

Overview Affected versions of this package are vulnerable to Improper Removal of Sensitive Information Before Storage or Transfer in the HideSecretData function that fails to mask predictedLive argument for --server-side-diff command. An attacker can extract last-applied-configuration which may...

Improper Removal of Sensitive Information Before Storage or Transfer

Overview Affected versions of this package are vulnerable to Improper Removal of Sensitive Information Before Storage or Transfer in the HideSecretData function that fails to mask predictedLive argument for --server-side-diff command. An attacker can extract last-applied-configuration which may...

PT-2026-41971

Name of the Vulnerable Software and Affected Versions Argo CD affected versions not specified Description An incomplete fix in the server-side diff functionality allows authenticated users to view sensitive Kubernetes Secret values. When using the argocd app diff --server-side-diff command, the...

Information Disclosure

Argo CD is vulnerable to Information Exposure. The vulnerability is due to missing authorization and insufficient data masking in the ServerSideDiff endpoint, which allows an attacker with read-only access to extract plaintext Kubernetes Secret data through the Server-Side Apply dry-run mechanism...

BIT-ARGO-CD-2026-42880 ArgoCD ServerSideDiff is vulnerable to Kubernetes Secret Extraction

Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. From versions 3.2.0 to before 3.2.11 and 3.3.0 to before 3.3.9, there is a missing authorization and data-masking gap in Argo CD's ServerSideDiff endpoint that allows an attacker with read-only access to extract plaintext...

CVE-2026-42880

Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. From versions 3.2.0 to before 3.2.11 and 3.3.0 to before 3.3.9, there is a missing authorization and data-masking gap in Argo CD's ServerSideDiff endpoint that allows an attacker with read-only access to extract plaintext...

CVE-2026-42880

Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. From versions 3.2.0 to before 3.2.11 and 3.3.0 to before 3.3.9, there is a missing authorization and data-masking gap in Argo CD's ServerSideDiff endpoint that allows an attacker with read-only access to extract plaintext...

CVE-2026-42880 ArgoCD ServerSideDiff is vulnerable to Kubernetes Secret Extraction

Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. From versions 3.2.0 to before 3.2.11 and 3.3.0 to before 3.3.9, there is a missing authorization and data-masking gap in Argo CD's ServerSideDiff endpoint that allows an attacker with read-only access to extract plaintext...

CVE-2026-42880 ArgoCD ServerSideDiff is vulnerable to Kubernetes Secret Extraction

Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. From versions 3.2.0 to before 3.2.11 and 3.3.0 to before 3.3.9, there is a missing authorization and data-masking gap in Argo CD's ServerSideDiff endpoint that allows an attacker with read-only access to extract plaintext...

CVE-2026-42880

CVE-2026-42880 (Argo CD) : A missing authorization/data-masking gap in Argo CD’s ServerSideDiff endpoint allows an attacker with read-only access to extract plaintext Secret data from etcd via the Kubernetes API server’s Server-Side Apply dry-run. Affected versions are 3.2.0–3.2.10 and 3.3.0–3.3....

GHSA-3V3M-WC6V-X4X3 ArgoCD ServerSideDiff is vulnerable to Kubernetes Secret Extraction

Summary There is a missing authorization and data-masking gap in Argo CD's ServerSideDiff endpoint that allows an attacker with read-only access to extract plaintext Kubernetes Secret data from etcd via the Kubernetes API server's Server-Side Apply dry-run mechanism. Details Argo CD masks Secret...

EUVD-2026-28469

ArgoCD ServerSideDiff is vulnerable to Kubernetes Secret Extraction...

ArgoCD ServerSideDiff is vulnerable to Kubernetes Secret Extraction

Summary There is a missing authorization and data-masking gap in Argo CD's ServerSideDiff endpoint that allows an attacker with read-only access to extract plaintext Kubernetes Secret data from etcd via the Kubernetes API server's Server-Side Apply dry-run mechanism. Details Argo CD masks Secret...

Argo CD 信息泄露漏洞

Argo CD is an open-source tool developed by Argo for Kubernetes, designed for declarative GitOps continuous delivery. Versions of Argo CD prior to 3.2.11 and 3.3.0–3.3.9 contained a vulnerability related to information leakage. This vulnerability stemmed from a lack of authorization and data...

Improper Removal of Sensitive Information Before Storage or Transfer

Overview Affected versions of this package are vulnerable to Improper Removal of Sensitive Information Before Storage or Transfer via the ServerSideDiff process. An attacker can access sensitive Kubernetes Secret data in cleartext by leveraging this process with appropriate permissions. Remediati...