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CVE-2026-113709BIT-argo-cd-2026-55797CVE-2026-55797GHSA-fw5c-w8rc-j7fxGHSA-j6cw-g6p4-7hchGO-2026-6701

argo-cd: Argo CD: A Kustomize Helm config home can run commands in the repo-server

argoproj argo-cdGoLibraries & packages
Open in ThreatlineRecord JSON
CVSS
9.9Critical
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.42%Chance of exploitation activity in the next 30 days, higher than 35% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in3.3.15Also 3.4.10, 3.5.4 and 1 moreGitHub
Published20 Oct 2026Updated 21 Oct 2026CVE List

What fixes it

  • 3.3.15github.com/argoproj/argo-cd/v3, goGitHubgo get github.com/argoproj/argo-cd/v3@v3.3.15
  • 3.4.10github.com/argoproj/argo-cd/v3, goGitHubgo get github.com/argoproj/argo-cd/v3@v3.4.10
  • 3.5.4github.com/argoproj/argo-cd/v3, goGitHubgo get github.com/argoproj/argo-cd/v3@v3.5.4
  • 3.6.0-rc2github.com/argoproj/argo-cd/v3, goGitHubgo get github.com/argoproj/argo-cd/v3@v3.6.0-rc2
  • 3.3.15github.com/argoproj/argo-cd/v3, GoOSVgo get github.com/argoproj/argo-cd/v3@v3.3.15
  • 3.4.10github.com/argoproj/argo-cd/v3, GoOSVgo get github.com/argoproj/argo-cd/v3@v3.4.10
Show all 8 fixed versions
  • 3.5.4github.com/argoproj/argo-cd/v3, GoOSVgo get github.com/argoproj/argo-cd/v3@v3.5.4
  • 3.6.0-rc2github.com/argoproj/argo-cd/v3, GoOSVgo get github.com/argoproj/argo-cd/v3@v3.6.0-rc2

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Description

Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. From 2.1.0 until 3.3.15, 3.4.10, 3.5.4, and 3.6.0-rc2, when an operator has enabled --enable-helm for kustomize build, helmGlobals.configHome can point Helm's config and data directories at a repository-controlled location. Helm automatically loads a downloader plugin from <configHome>/.data/plugins without a separate plugin-install step and executes its program inside argocd-repo-server when a helmCharts repository URL uses the plugin's protocol. The command runs as the repo-server user and can read repository credentials and other process-accessible data. An attacker can commit the Kustomization and plugin to a Git repository that an Application builds or upload the files through POST /api/v1/applications/manifestsWithFiles, also exposed by argocd app diff --local --server-side-generate. The upload path requires only Application get permission on an existing Application, without Application update or sync permission or repository write access. Both delivery paths require prior operator enablement of --enable-helm; deployments that do not enable it are not affected. Kustomize 4.1.0 first passed helmGlobals.configHome through to Helm. This issue is fixed in versions 3.3.15, 3.4.10, 3.5.4, and 3.6.0-rc2.

Text from CVE List

Affected versions 12

  • argo-cdaffected: >= 2.1.0, < 3.3.15CVE List
  • argo-cdaffected: >= 3.4.0-rc1, < 3.4.10CVE List
  • argo-cdaffected: >= 3.5.0-rc1, < 3.5.4CVE List
  • argo-cdaffected: >= 3.6.0-rc1, < 3.6.0-rc2CVE List
  • github.com/argoproj/argo-cd/v2, go>= 2.1.0GitHub
  • github.com/argoproj/argo-cd/v3, go>= 3.0.0, < 3.3.15 || >= 3.4.0, < 3.4.10 || >= 3.5.0, < 3.5.4 || = 3.6.0-rc1GitHub
  • github.com/argoproj/argo-cd/v2, Gofrom 2.11.0, through 2.14.21OSV
  • github.com/argoproj/argo-cd/v3, Gofrom 3.0.0, fixed in 3.3.15OSV
  • github.com/argoproj/argo-cd/v3, Gofrom 3.4.0, fixed in 3.4.10OSV
  • github.com/argoproj/argo-cd/v3, Gofrom 3.5.0, fixed in 3.5.4OSV
  • github.com/argoproj/argo-cd/v3, Gofrom 3.6.0-rc1, fixed in 3.6.0-rc2OSV
  • github.com/argoproj/argo-cd/v3, Go3.6.0-rc1OSV

References 10