ArgoCD ServerSideDiff is vulnerable to Kubernetes Secret Extraction
Published May 2, 2026 · Updated Oct 23, 2026 · Also known as BIT-argo-cd-2026-42880, GHSA-3v3m-wc6v-x4x3, GO-2026-5099
Original summary
Normalized public record · Updated Oct 23, 2026
ArgoCD ServerSideDiff is vulnerable to Kubernetes Secret Extraction
Publisher and source text is retained separately from QFinch interpretation.
QFinch assessment
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 Kubernetes Secret data from etcd via the Kubernetes API server's Server-Side Apply dry-run mechanism. This issue has been patched in versions 3.2.11 and 3.3.9.
Evidence: public source recordsAffected products
| Affected package, product or range | Fix status |
|---|---|
| Consult the referenced vendor advisory for affected versions. | Consult source advisory |
Matching a version is only one part of assessing exposure. QFinch has not assessed your environment on this public page.
Remediation
Apply the vendor-supported fixed release or mitigation, then verify the affected component is no longer reachable.
- Confirm the affected product and reachable code path exist in your environment.
- Apply the vendor-supported patch or mitigation from the primary advisory.
- Rescan the exact deployed revision and retain verification evidence.
Evidence coverage
- SSVC priority
- MEDIUM
- Confidence
- 10%
- Aliases
- BIT-argo-cd-2026-42880, GHSA-3v3m-wc6v-x4x3, GO-2026-5099, CVE-2026-42880
Scores appear only when corresponding evidence exists. Missing data is never interpreted as zero risk.
Sources and record history
Record history
Published May 2, 2026 · Last refreshed Oct 23, 2026