Security advisory

{
  "id": "291d3e743304a33fee0631311ab37cc63c81533c4bddabf110452c5ca8be2977",
  "url": "https://osv.dev/vulnerability/CVE-2021-21277",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-21277",
    "summary": "angular-expressions is \"angular's nicest part extracted as a standalone module for the browser and node\". In angular-expressions before version 1.1.2 there is a vulnerability which allows Remote Code Execution if you call \"expressions.compile(userControlledInput)\" where \"userControlledInput\" is text that comes from user input. The security of the package could be bypassed by using a more complex payload, using a \".constructor.constructor\" technique. In terms of impact: If running angular-expressions in the browser, an attacker could run any browser script when the application code calls expressions.compile(userControlledInput). If running angular-expressions on the server, an attacker could run any Javascript expression, thus gaining Remote Code Execution. This is fixed in version 1.1.2 of angular-expressions A temporary workaround might be either to disable user-controlled input that will be fed into angular-expressions in your application or allow only following characters in the userControlledInput.",
    "evidence": "osv:CVE-2021-21277",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2021-21277",
      "aliases": [
        "CVE-2021-21277",
        "GHSA-j6px-jwvv-vpwq"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/peerigon/angular-expressions",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "3e4f0b437c33f57ba8f13e4197242740ff555aa0"
                },
                {
                  "fixed": "07edb62902b1f6127b3dcc013da61c6316dd0bf1"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:peerigon:angular-expressions:*:*:*:*:*:node.js:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.1.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "07edb62902b1f6127b3dcc013da61c6316dd0bf1"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.1.1",
            "v1.1.0",
            "v1.0.1",
            "v1.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-21277.json"
          }
        }
      ],
      "modified": "2026-10-20T10:54:27.868618406Z",
      "provider": "osv",
      "references": [
        "https://www.npmjs.com/package/angular-expressions",
        "https://github.com/peerigon/angular-expressions/security/advisories/GHSA-j6px-jwvv-vpwq",
        "https://github.com/peerigon/angular-expressions/commit/07edb62902b1f6127b3dcc013da61c6316dd0bf1"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-21277",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 385387,
  "published_at": "2021-02-01T15:15:13.34+00:00"
}