CVE-2020-11576

Name: CVE-2020-11576
Creator: NVD / NIST
Published: 2020-04-08T18:15:15.323+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 1.92%

Last modified Jun 17, 2026

CVE-2020-11576 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. 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.. EPSS estimates a 1.92% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

5.3/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS Probability

1.92%

77.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-203

Affected Software

Vendor	Product	Versions
Argoproj	Argo Cd	1.5.0

References

https://github.com/argoproj/argo-cd/commit/35a7350b7444bcaf53ee0bb11b9d8e3ae4b717a1Patch, Third Party Advisory
https://github.com/argoproj/argo-cd/pull/3215Patch, Third Party Advisory
https://www.soluble.ai/blog/argo-cves-2020Third Party Advisory
https://github.com/argoproj/argo-cd/commit/35a7350b7444bcaf53ee0bb11b9d8e3ae4b717a1Patch, Third Party Advisory
https://github.com/argoproj/argo-cd/pull/3215Patch, Third Party Advisory
https://www.soluble.ai/blog/argo-cves-2020Third Party Advisory

Timeline

Published: Apr 8, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-11576?

How severe is CVE-2020-11576?

CVE-2020-11576 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 1.92% probability of exploitation in the next 30 days.

How do I fix CVE-2020-11576?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-11576?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST