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

Quick assessment

Affected
argoproj argo-cd
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Argo CD 是一个用于 Kubernetes 的声明式 GitOps 持续交付工具。在版本 2.11.0 至 3.3.15、3.4.10、3.5.4 以及 3.6.0-rc2 之间，Argo CD 的 repo-server 存在命令注入漏洞。当配置了代理 URL 的 SSH Git 仓库进行克隆、测试或获取操作时，该漏洞便会被触发。在此过程中，代理主机和端口会被嵌入到通过 Shell 执行的 SSH ProxyCommand 中，但并未对 Shell 元字符进行转义或清理。 攻击者若具备创建或更新仓库或仓库凭

CVSS 8.8 · High

Affected Version Matrix 5

VendorProduct Version RangeStatus
argoproj argo-cd >= 2.11.0, <= 2.14.21 affected
>= 3.0.0, < 3.3.15 affected
>= 3.4.0, < 3.4.10 affected
>= 3.5.0, < 3.5.4 affected
= 3.6.0-rc1 affected
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I. Basic Information for CVE-2026-55797

Vulnerability Information
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Vulnerability Title
Argo CD repo-server command injection via crafted SSH repository SOCKS5 proxy URL
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
argoproj argo-cd >= 2.11.0, <= 2.14.21 -

II. Public POCs for CVE-2026-55797

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III. Intelligence Information for CVE-2026-55797

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Other References for CVE-2026-55797 (8)

IV. Related Vulnerabilities

Same product: argo-cd
Same vendor: argoproj
Same weakness: CWE-78

V. Comments for CVE-2026-55797

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