What’s Vulnerable › Vulnerabilities

CVE-2021-26923

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-03-15 · updated 2026-06-17
• Weakness: CWE-200

Description

An issue was discovered in Argo CD before 1.8.4. Accessing the endpoint /api/version leaks internal information for the system, and this endpoint is not protected with authentication.

Affected products

• argoproj argo-cd: before 1.7.12; from 1.8.0 before 1.8.4 — fixed in 1.7.12, 1.8.4

How to fix

Upgrade to a fixed version: argoproj argo-cd 1.7.12, 1.8.4. Check the vendor advisory for mitigations.

References

• https://github.com/argoproj/argo-cd/compare/v1.8.3...v1.8.4
• https://github.com/argoproj/argo-cd/security/advisories/GHSA-pfgj-mh5m-2p48
• https://github.com/argoproj/argo-cd/compare/v1.8.3...v1.8.4
• https://github.com/argoproj/argo-cd/security/advisories/GHSA-pfgj-mh5m-2p48

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