What’s Vulnerable › Vulnerabilities

CVE-2026-55797: Argo CD repo-server command injection via crafted SSH repository SOCKS5 proxy URL

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-09 · updated 2026-10-09
• Weakness: CWE-78

Description

Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. From 2.11.0 until 3.3.15, 3.4.10, 3.5.4, and 3.6.0-rc2, the Argo CD repo-server is vulnerable to command injection when it clones, tests, or fetches an SSH Git repository configured with a proxy URL. The proxy host and port are embedded in an SSH ProxyCommand that is executed through a shell without neutralizing shell metacharacters. A user who can create or update a repository or repository credential template can supply a crafted proxy host to execute commands in the repo-server and access its Git, Helm, and OCI credentials. This issue is fixed in versions 3.3.15, 3.4.10, 3.5.4, and 3.6.0-rc2.

Affected products

• argoproj argo-cd: from 2.11.0, <= 2.14.21; from 3.0.0, < 3.3.15; from 3.4.0, < 3.4.10; from 3.5.0, < 3.5.4; = 3.6.0-rc1

References

• https://github.com/argoproj/argo-cd/commit/1e3ddd0b7250aa23f489956b5fab8c13d0493a9f
• https://github.com/argoproj/argo-cd/commit/9b27aeb1a4fb15d11a0f01cad65dea1fdfc60205
• https://github.com/argoproj/argo-cd/pull/15864
• https://github.com/argoproj/argo-cd/releases/tag/v3.3.15
• https://github.com/argoproj/argo-cd/releases/tag/v3.4.10
• https://github.com/argoproj/argo-cd/releases/tag/v3.5.4
• https://github.com/argoproj/argo-cd/releases/tag/v3.6.0-rc2
• https://github.com/argoproj/argo-cd/security/advisories/GHSA-j6cw-g6p4-7hch

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