📄 velocityjs 2.1.5 Prototype Pollution

A proof of concept exploit for velocityjs versions 0.3.1 through 2.1.5 that contain a prototype pollution vulnerability. The exploit abuses an unvalidated set left-hand path to write arbitrary properties into Object.prototype, enabling authorization bypasses and, on Node.js 16 and earlier,...

GHSA-7GFH-X38P-PRH3 Velocity.js: Remote Code Execution via property-read to Function constructor (bypass of GHSA-j658-c2gf-x6pq fix)

Summary Remote Code Execution RCE in velocityjs v2.1.6 via property-read to the Function constructor. This bypasses the fix for GHSA-j658-c2gf-x6pq "Prototype Pollution in set path assignment" — that advisory blocked constructor/proto/prototype only in the set assignment handler set.cjs, but...

@claspo/common (>=5.2.1-theme.13, <=7.5.1), @claspo/components (>=1.1.14, <=1.10.15) +3 more potentially affected by CVE-2026-73649 via velocityjs (>=2.0.6, <=2.1.6)

velocityjs NPM version =2.0.6, =5.2.1-theme.13, =1.1.14, =14.5.0-theme.13, =16.5.0-theme.13, =14.4.1-theme.13, =16.5.1-dsp1 Source cves: CVE-2026-73649 Source advisory: OSV:GHSA-7GFH-X38P-PRH3...

@claspo/common (>=5.2.1-theme.13, <=7.5.1), @claspo/components (>=1.1.14, <=1.10.15) +3 more potentially affected by unknown CVE via velocityjs (>=2.0.6, <=2.1.6)

velocityjs NPM version =2.0.6, =5.2.1-theme.13, =1.1.14, =14.5.0-theme.13, =16.5.0-theme.13, =14.4.1-theme.13, =16.5.1-dsp1 Source cves: unknown CVE Source advisory: SNYK:JS-VELOCITYJS-18319515...

CVE-2026-44966

Velocity.js is a JavaScript implementation of the Apache Velocity template engine. In 2.1.5 and earlier, a prototype pollution vulnerability was discovered in velocityjs. This issue occurs during the processing of set directives in Velocity templates. If an application renders a template controll...

@claspo/common (>=5.2.1-theme.13, <=7.4.0), @claspo/components (>=1.1.14, <=1.10.12) +3 more potentially affected by CVE-2026-44966 via velocityjs (2.0.6)

velocityjs NPM version 2.0.6 is affected by a known vulnerability. The following packages have a transitive dependency on velocityjs and may be impacted: - @claspo/common =5.2.1-theme.13, =1.1.14, =14.5.0-theme.13, =16.5.0-theme.13, =14.4.1-theme.13, =16.4.1 Source cves: CVE-2026-44966 Source...

@claspo/common (>=5.2.1-theme.13, <=7.4.0), @claspo/components (>=1.1.14, <=1.10.12) +3 more potentially affected by CVE-2026-44966 via velocityjs (2.0.6)

velocityjs NPM version 2.0.6 is affected by a known vulnerability. The following packages have a transitive dependency on velocityjs and may be impacted: - @claspo/common =5.2.1-theme.13, =1.1.14, =14.5.0-theme.13, =16.5.0-theme.13, =14.4.1-theme.13, =16.4.1 Source cves: CVE-2026-44966 Source...