CVE-2020-11576 Observable Discrepancy in Argo

What is CVE-2020-11576?

CVE-2020-11576 is a medium-severity vulnerability in Argoproj Argo Cd, published on 8 Apr 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Fixed in v1.5.1, Argo version v1.5.0 was vulnerable to a user-enumeration vulnerability which allowed attackers to determine the usernames of valid (non-SSO) accounts because /api/v1/session returned 401 for an existing username and 404 otherwise.

Weakness: CWE-203

Which versions are affected by CVE-2020-11576?

4 open source packages ship an affected version, including github.com/argoproj/argo-cd and argo-cd. It affects 1 product.

Products include Argoproj Argo Cd.

How do I fix CVE-2020-11576?

Upgrade github.com/argoproj/argo-cd to 1.5.1 or later.

Is CVE-2020-11576 being exploited?

There is no known exploitation of CVE-2020-11576 in the wild and no public exploit code.

Other vulnerabilities in Argoproj Argo Cd

• CVE-2025-55190 Argo CD: Project API Token Exposes Repository Credentials Critical 10.0
• CVE-2022-29165 Argo CD will blindly trust JWT claims if anonymous access is enabled Critical 10.0
• CVE-2023-40029 Cluster secret might leak in cluster details page in Argo CD Critical 9.9
• CVE-2022-24768 Improper access control allows admin privilege escalation in Argo CD Critical 9.9
• CVE-2024-21652 Argo CD vulnerable to Bypassing of Brute Force Protection via Application Crash and In-Memory Data Loss Critical 9.8

All Argoproj Argo Cd vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BIT-argo-cd-2020-11576, GHSA-vj54-cjrx-x696, GO-2022-0882.