CVE-2026-55797

8.8 highEPSS 1.9%

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.

CVSS 3.1: 8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS: 1.9% chance of exploitation in the next 30 days; higher than 79% of CVEs (scores of 2026-10-25)
CWE: CWE-78
Published: 2026-10-09
Modified: 2026-10-09
Record from: the NVD, synced 2026-10-19

Packages (OSV)

Advisory	Ecosystem	Package	Affected	Fixed in
GHSA-j6cw-g6p4-7hch	Go	github.com/argoproj/argo-cd/v2	>=2.11.0 <=2.14.21	no fix published
GHSA-j6cw-g6p4-7hch	Go	github.com/argoproj/argo-cd/v3	>=3.0.0 <3.3.15	3.3.15
GHSA-j6cw-g6p4-7hch	Go	github.com/argoproj/argo-cd/v3	>=3.4.0 <3.4.10	3.4.10
GHSA-j6cw-g6p4-7hch	Go	github.com/argoproj/argo-cd/v3	>=3.5.0 <3.5.4	3.5.4
GHSA-j6cw-g6p4-7hch	Go	github.com/argoproj/argo-cd/v3	>=3.6.0-rc1 <3.6.0-rc2	3.6.0-rc2
GO-2026-6701	Go	github.com/argoproj/argo-cd	all versions	no fix published
GO-2026-6701	Go	github.com/argoproj/argo-cd/v2	>=2.11.0	no fix published
GO-2026-6701	Go	github.com/argoproj/argo-cd/v3	>=3.0.0 <3.3.15 >=3.4.0 <3.4.10 >=3.5.0 <3.5.4 >=3.6.0-rc1 <3.6.0-rc2	3.3.15, 3.4.10, 3.5.4, 3.6.0-rc2

References

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