CVE-2026-77459

{
  "etk_id": "ETK-2026-896",
  "cve_id": "CVE-2026-77459",
  "display_id": "CVE-2026-77459",
  "ghsa_id": "GHSA-fmxq-cgp8-87wp",
  "euvd_id": "EUVD-2026-98917",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Argo CD delete-hook AppProject authorization bypass",
  "summary": "Argo CD releases from 2.10.0 can create PreDelete and PostDelete hook resources without enforcing the associated AppProject's destination and resource restrictions. A user who can modify an Application's source repository may cause unauthorized cluster or namespace resources to be created when that Application is deleted, within the application-controller's Kubernetes access.",
  "mitigation": "Upgrade github.com/argoproj/argo-cd/v3 to 3.3.15, 3.4.10, 3.5.4, 3.6.0-rc2 or later.",
  "vendor": "go",
  "product": "go:github.com/argoproj/argo-cd/v2",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 2.10.0"
      ],
      "ecosystem": "go",
      "fixed_versions": [],
      "package_name": "github.com/argoproj/argo-cd/v2",
      "purl": "pkg:golang/github.com/argoproj/argo-cd/v2"
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 3.0.0, < 3.3.15",
        ">= 3.4.0, < 3.4.10",
        ">= 3.5.0, < 3.5.4",
        "= 3.6.0-rc1"
      ],
      "ecosystem": "go",
      "fixed_versions": [
        "3.3.15",
        "3.4.10",
        "3.5.4",
        "3.6.0-rc2"
      ],
      "package_name": "github.com/argoproj/argo-cd/v3",
      "purl": "pkg:golang/github.com/argoproj/argo-cd/v3"
    }
  ],
  "cwes": [
    863
  ],
  "cvss_score": 9.9,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
  "epss_score": 0.0072,
  "epss_percentile": 0.5333,
  "epss_asof": "2026-10-21",
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 76.38000676666667,
  "t0_at": "2026-10-13T16:26:47.088000+00:00",
  "signals": {
    "trigger_signal": {
      "at": "2026-10-07T15:58:43+00:00",
      "days": -6.019491759259259,
      "is_lower_bound": false,
      "measured_at": "2026-10-13T16:26:47.088000+00:00",
      "url": "https://github.com/argoproj/argo-cd/security/advisories/GHSA-fmxq-cgp8-87wp"
    }
  }
}