Security advisory

{
  "id": "1c8f57dae01cd3c7218725e57197337f73b718b51e1de59cf63624a7db70f520",
  "url": "https://osv.dev/vulnerability/CVE-2021-30503",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-30503",
    "summary": "The unofficial GLSL Linting extension before 1.4.0 for Visual Studio Code allows remote code execution via a crafted glslangValidatorPath in the workspace configuration.",
    "evidence": "osv:CVE-2021-30503",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2021-30503",
      "aliases": [
        "CVE-2021-30503"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/hsimpson/vscode-glsllint",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "da03700894d9ec85d7b957ef0d7de07660c660dc"
                },
                {
                  "fixed": "3effba525bdff7d4257e66a6815ff956d2bce8ac"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:glsl_linting_project:glsl_linting:*:*:*:*:*:visual_studio_code:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.4.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "3effba525bdff7d4257e66a6815ff956d2bce8ac"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.3.0",
            "1.2.0",
            "1.1.1",
            "1.1.0",
            "1.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-30503.json"
          }
        }
      ],
      "modified": "2026-10-20T10:53:45.336948728Z",
      "provider": "osv",
      "references": [
        "https://marketplace.visualstudio.com/items/CADENAS.vscode-glsllint/changelog#:~:text=1.4.x",
        "https://vuln.ryotak.me/advisories/27",
        "https://github.com/hsimpson/vscode-glsllint/commit/3effba525bdff7d4257e66a6815ff956d2bce8ac"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-30503",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 384581,
  "published_at": "2021-04-13T02:15:13.48+00:00"
}