CVE-2021-3557

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-02-16 · updated 2026-06-17
Weakness: CWE-732

Description

A flaw was found in argocd. Any unprivileged user is able to deploy argocd in their namespace and with the created ServiceAccount argocd-argocd-server, the unprivileged user is able to read all resources of the cluster including all secrets which might enable privilege escalations. The highest threat from this vulnerability is to data confidentiality.

Affected products

argoproj argo-cd: before 1.1.1 — fixed in 1.1.1
RedHat Openshift Gitops: 1.1

How to fix

Upgrade to a fixed version: argoproj argo-cd 1.1.1. Check the vendor advisory for mitigations.

References

https://bugzilla.redhat.com/show_bug.cgi?id=1961929
https://bugzilla.redhat.com/show_bug.cgi?id=1961929

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