CVE-2026-42880 - Vulnerability Analysis
CriticalCVSS: 9.6Last Updated: May 8, 2026
Argo CD - Broken Access Control
Published: May 7, 2026Updated: May 8, 2026Remote Exploitable
Overview
Argo CD 3.2.0 < versions < 3.2.11 and 3.3.0 < versions < 3.3.9 contain a broken access control caused by missing authorization and data masking in ServerSideDiff endpoint, letting attackers with read-only access extract plaintext Kubernetes Secret data, exploit requires read-only access.
Severity & Score
Severity: Critical
CVSS Score: 9.6
Impact
Attackers with read-only access can extract plaintext Kubernetes Secret data, leading to sensitive information disclosure.
Mitigation
Update to versions 3.2.11 or 3.3.9 or later.
Related Resources
Details
- CVE ID
- CVE-2026-42880
- Severity
- Critical
- CVSS Score
- 9.6
- Type
- broken_access_control
- Status
- unconfirmed
CWE
- CWE-200
CVSS Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N