Argo CD: Kubernetes Secret Extraction via ArgoCD ServerSideDiff via sensitive annotations
Priority MEDIUM 62CWE-200Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-200.
Summary
Argo 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.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00521 44th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed argo-cd (argoproj): 3.2.12, 3.3.10, 3.4.2github.com/argoproj/argo-cd/v3 (Go): 3.2.12, 3.3.10, 3.4.2
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| argoproj | argo-cd | 3.2.0 to before 3.2.12; 3.3.9 to before 3.3.10; 3.4.1 to before 3.4.2 | 3.2.12, 3.3.10, 3.4.2 | Patch available | CNA |
| — | github.com/argoproj/argo-cd/v3 (Go) | 3.2.0 to before 3.2.12 | 3.2.12 | Patch available | GHSA-rg3g-4rw9-gqrp |
| — | github.com/argoproj/argo-cd/v3 (Go) | 3.3.0-rc1 to before 3.3.10 | 3.3.10 | Patch available | GHSA-rg3g-4rw9-gqrp |
| — | github.com/argoproj/argo-cd/v3 (Go) | 3.4.0-rc1 to before 3.4.2 | 3.4.2 | Patch available | GHSA-rg3g-4rw9-gqrp |
- argo-cd Vendorargoproj Affected 3.2.0 to before 3.2.12; 3.3.9 to before 3.3.10; 3.4.1 to before 3.4.2 Fixed in 3.2.12, 3.3.10, 3.4.2 Patch available CNA
- github.com/argoproj/argo-cd/v3 (Go) Vendor— Affected 3.2.0 to before 3.2.12 Fixed in 3.2.12 Patch available GHSA-rg3g-4rw9-gqrp
- github.com/argoproj/argo-cd/v3 (Go) Vendor— Affected 3.3.0-rc1 to before 3.3.10 Fixed in 3.3.10 Patch available GHSA-rg3g-4rw9-gqrp
- github.com/argoproj/argo-cd/v3 (Go) Vendor— Affected 3.4.0-rc1 to before 3.4.2 Fixed in 3.4.2 Patch available GHSA-rg3g-4rw9-gqrp
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:argoproj:argo_cd:*:*:*:*:*:*:*:* | 3.2.0 to before 3.2.12; 3.3.9 to before 3.3.10; 3.4.1 to before 3.4.2 | Vulnerable | argoproj |
- cpe:2.3:a:argoproj:argo_cd:*:*:*:*:*:*:*:* Versions 3.2.0 to before 3.2.12; 3.3.9 to before 3.3.10; 3.4.1 to before 3.4.2 Vulnerable ·argoproj
Remediation
- Fix · CNA argo-cd (argoproj) Fixed in 3.2.12, 3.3.10, 3.4.2
- Fix · GHSA-rg3g-4rw9-gqrp github.com/argoproj/argo-cd/v3 (Go) Fixed in 3.2.12 Advisory →
- Fix · GHSA-rg3g-4rw9-gqrp github.com/argoproj/argo-cd/v3 (Go) Fixed in 3.3.10 Advisory →
- Fix · GHSA-rg3g-4rw9-gqrp github.com/argoproj/argo-cd/v3 (Go) Fixed in 3.4.2 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2026-45737
- 2026-10-03 Alias added: GHSA-rg3g-4rw9-gqrp
References
Patch 4
- https://github.com/argoproj/argo-cd/commit/7879e6322465080a82d152bf00f2b92e0f36c658
- https://github.com/argoproj/argo-cd/commit/87e9148320749693624d08e3d6fa2cc217c672a0
- https://github.com/argoproj/argo-cd/commit/ac11bec9986807adc8886ef1181eced7347ef5c6
- https://github.com/argoproj/argo-cd/commit/bcb4298afc9fcff5f5d69f4e1db2d0a75983f42c
More argoproj Argo Cd vulnerabilities
- TI-2024-14377 Argo CD vulnerable to Bypassing of Brute Force Protection via Application Crash and In-Memory Data Loss CVSS 3.1CRITICAL 9.8
- TI-2024-14383 Argo CD vulnerable to Bypassing of Rate Limit and Brute Force Protection Using Cache Overflow CVSS 3.1CRITICAL 9.1
- TI-2026-31086 ArgoCD ServerSideDiff is vulnerable to Kubernetes Secret Extraction CVSS 3.1CRITICAL 9.6
- TI-2023-20919 Cluster secret might leak in cluster details page in Argo CD CVSS 3.1CRITICAL 9.9
- TI-2024-21088 ArgoCD Vulnerable to Use of Risky or Missing Cryptographic Algorithms in Redis Cache CVSS 3.1CRITICAL 9.1
- TI-2026-33475 Argo CD: Stored XSS in application link annotations enables developer-to-admin privilege escalation CVSS 3.1HIGH 8.7
Sources
- CVE-2026-45737 · CVE Program
- CVE-2026-45737 · NVD
- FIRST EPSS
- GHSA-rg3g-4rw9-gqrp · GitHub Advisory Database · CC BY 4.0
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