{"id":"CVE-2026-73649","revision":"83cd5a0033b04eef9f47213b89ef2d3e","records":[{"revision":"83cd5a0033b04eef9f47213b89ef2d3e","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-73649","aliases":[],"title":"Velocity.js: Remote Code Execution via property-read to Function constructor (bypass of CVE-2026-44966 fix)","description":"Velocity.js is a JavaScript implementation of the Apache Velocity template engine. Prior to 2.1.7, the earlier fix for CVE-2026-44966 filtered constructor, __proto__, and prototype only in the #set assignment handler in src/compile/set.ts, while property-read expressions in src/compile/references.ts remained unfiltered. The getReferences() flow called getAttributes(), whose property access allowed an attacker-controlled template to traverse constructor.constructor to the JavaScript Function constructor. The #set handler validated only the assignment target and did not inspect the right-hand property-read expression, allowing arbitrary shell commands, environment-variable access, cloud-credential access, and internal-network access in the server process. This issue is fixed in version 2.1.7.","state":0,"publishedAt":"2026-08-13T18:05:31.929+00:00","modifiedAt":"2026-08-14T16:42:31.371+00:00","affected":[{"ecosystem":"Vendor product","name":"velocity.js","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"shepherdwind\",\n                    \"product\": \"velocity.js\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 2.1.7\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8,"severity":"CRITICAL"}],"references":["https://github.com/shepherdwind/velocity.js/security/advisories/GHSA-7gfh-x38p-prh3","https://github.com/shepherdwind/velocity.js/pull/192","https://github.com/shepherdwind/velocity.js/commit/f8e47a6c4607249b9c967d3a1ced959b4dd64dba","https://github.com/shepherdwind/velocity.js/releases/tag/v2.1.7"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-73649","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-73649","identifiers":["CVE-2026-73649"]},"retained":false,"historicalAffected":[]}],"coverage":[]}