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CVE Vulnerability Details :
CVE-2026-42880
PUBLISHED
More InfoOfficial Page
Assigner-GitHub_M
Assigner Org ID-a0819718-46f1-4df5-94e2-005712e83aaa
View Known Exploited Vulnerability (KEV) details
Published At-07 May, 2026 | 22:20
Updated At-14 May, 2026 | 03:56
Rejected At-
▼CVE Numbering Authority (CNA)
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 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.

Affected Products
Vendor
argoproj
Product
argo-cd
Versions
Affected
  • >= 3.2.0, < 3.2.11
  • >= 3.3.0, < 3.3.9
Problem Types
TypeCWE IDDescription
CWECWE-200CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
CWECWE-212CWE-212: Improper Removal of Sensitive Information Before Storage or Transfer
Type: CWE
CWE ID: CWE-200
Description: CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
Type: CWE
CWE ID: CWE-212
Description: CWE-212: Improper Removal of Sensitive Information Before Storage or Transfer
Metrics
VersionBase scoreBase severityVector
3.19.6CRITICAL
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
Version: 3.1
Base score: 9.6
Base severity: CRITICAL
Vector:
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/argoproj/argo-cd/security/advisories/GHSA-3v3m-wc6v-x4x3
x_refsource_CONFIRM
Hyperlink: https://github.com/argoproj/argo-cd/security/advisories/GHSA-3v3m-wc6v-x4x3
Resource:
x_refsource_CONFIRM
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/argoproj/argo-cd/security/advisories/GHSA-3v3m-wc6v-x4x3
exploit
Hyperlink: https://github.com/argoproj/argo-cd/security/advisories/GHSA-3v3m-wc6v-x4x3
Resource:
exploit
Details not found