CVE-2026-73649 - Velocity.js: Remote Code Execution via property-read to Function constructor (bypass of CVE-2026-44966 fix)

CVE-2026-73649 - Velocity.js: Remote Code Execution via property-read to Function constructor (bypass of CVE-2026-44966 fix)

https://cvefeed.io/rssfeed/latest.atom / Thu, 08/13/2026 - 22:26
CVE ID :CVE-2026-73649
Published : Aug. 13, 2026, 6:18 p.m. | 1 hour, 10 minutes ago
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.
Severity: 9.8 | CRITICAL
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