What’s Vulnerable › Vulnerabilities

CVE-2020-11576

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-04-08 · updated 2026-06-17
• Weakness: CWE-203

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.

Affected products

• argoproj argo-cd: 1.5.0

References

• https://github.com/argoproj/argo-cd/commit/35a7350b7444bcaf53ee0bb11b9d8e3ae4b717a1
• https://github.com/argoproj/argo-cd/pull/3215
• https://www.soluble.ai/blog/argo-cves-2020
• https://github.com/argoproj/argo-cd/commit/35a7350b7444bcaf53ee0bb11b9d8e3ae4b717a1
• https://github.com/argoproj/argo-cd/pull/3215
• https://www.soluble.ai/blog/argo-cves-2020

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