CVE-2026-42880

Published May 7, 2026

Last updated a month ago

Overview

Description
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.
Source
security-advisories@github.com
NVD status
Analyzed
Products
argo_cd

Risk scores

CVSS 3.1

Type
Secondary
Base score
9.6
Impact score
5.8
Exploitability score
3.1
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
Severity
CRITICAL

Weaknesses

security-advisories@github.com
CWE-200

Social media

Hype score
Not currently trending

Configurations