Security advisory

{
  "id": "3348b19869fc8dcc2bcf3c82c963ecf61c47588f504f75d6b497d48961069bdc",
  "url": "https://osv.dev/vulnerability/CVE-2021-26924",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-26924",
    "summary": "An issue was discovered in Argo CD before 1.8.4. Browser XSS protection is not activated due to the missing XSS protection header.",
    "evidence": "osv:CVE-2021-26924",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2021-26924",
      "aliases": [
        "CVE-2021-26924",
        "GHSA-pg99-h5gc-446r"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/argoproj/argo-cd",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "602df423e0d1be0e71eb204293d91969dfb77c8a"
                },
                {
                  "introduced": "30348417a9603ec1c0e40b335cdf0fd83192bad0"
                },
                {
                  "fixed": "28aea3dfdede00443b52cc584814d80e8f896200"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:argoproj:argo_cd:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.7.12"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:argoproj:argo_cd:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.8.0"
                      },
                      {
                        "fixed": "1.8.4"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.8.3",
            "v1.8.2",
            "v1.7.11",
            "v1.8.1",
            "v1.8.0",
            "v1.7.10",
            "v1.7.9",
            "v1.7.8",
            "v1.7.7",
            "v1.7.6",
            "v1.7.5",
            "v1.7.4",
            "v1.7.3",
            "v1.7.2",
            "v1.7.1",
            "v1.7.0",
            "v1.7.0-rc1",
            "v0.8.0",
            "v0.7.1",
            "v0.7.0",
            "v0.6.1",
            "v0.6.0",
            "v0.5.2",
            "v0.5.1",
            "v0.5.0",
            "v0.4.5",
            "v0.4.4",
            "v0.4.3",
            "v0.4.2",
            "v0.4.1",
            "v0.4.0",
            "v0.4.0-alpha1",
            "v0.3.3",
            "v0.3.2",
            "v0.3.1",
            "v0.3.0",
            "v0.2.0",
            "v0.1.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-26924.json"
          }
        }
      ],
      "modified": "2026-10-20T10:54:34.922756511Z",
      "provider": "osv",
      "references": [
        "https://github.com/argoproj/argo-cd/security/advisories/GHSA-pg99-h5gc-446r",
        "https://github.com/argoproj/argo-cd/compare/v1.8.3...v1.8.4"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-26924",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 385648,
  "published_at": "2021-03-15T15:15:14.727+00:00"
}