CVE-2026-55760

Handlebars.java provides logic-less and semantic Mustache templates with Java. Prior to 4.5.2, applications that pass user-controlled input to Handlebars.compile() using FileTemplateLoader or ClassPathTemplateLoader are vulnerable to path traversal, allowing arbitrary file read through template names derived from URL path parameters, request parameters, or other user-controlled sources. This issue is fixed in version 4.5.2.

Score

CVSS 3.1 7.5 High

Status

Awaiting Analysis - security-advisories@github.com

Published

2026-07-08

Last modified

2026-10-25

Weaknesses

CWE-22

Affected products

• Handlebars.java (Jknack)

References

• https://github.com/jknack/handlebars.java/security/advisories/GHSA-r4gv-qr8j-p3pg
• https://github.com/jknack/handlebars.java/commit/d177cdee8b750385ca7a0d0f89f2d4be73e28f4e
• https://github.com/jknack/handlebars.java/releases/tag/v4.5.2