CVE-2026-55797
Argo CD repo-server command injection via crafted SSH repository SOCKS5 proxy URL
Impact
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 packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| go | github.com/argoproj/argo-cd/v2 | >= 2.11.0, <= 2.14.21 | none recorded |
| go | github.com/argoproj/argo-cd/v3 | >= 3.0.0, < 3.3.15 | 3.3.15 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-j6cw-g6p4-7hch
- https://github.com/argoproj/argo-cd/security/advisories/GHSA-j6cw-g6p4-7hch
- 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