CVE-2026-42880

high Red Hat
CVSS v3 Base Score
7.7
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
EPSS Score
0.0%
Exploitation probability in 30 days
Top 98% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Confidentiality
High
Integrity
None
Availability
None
Published: May 7, 2026 (63 days ago)
Last Modified: May 7, 2026
Vendor: Red Hat
Fix Available: ✓ Yes
Source: REDHAT

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.

CWE

CWE-201

Affected Products

Red Hat Openshift Data Foundation 4Red Hat OpenShift GitOpsRed Hat OpenShift GitOps 1.19Red Hat OpenShift GitOps 1.2

Fix Status

✅ Fix Available

References

🔗 bugzilla.redhat.com 🔗 www.cve.org 🔗 nvd.nist.gov 🔗 github.com