Vulnerability details

CVE-2026-55760

jknack handlebars.java

handlebars.java FileTemplateLoader Path Traversal

CVSS 3.1

7.5High

Official description

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.

CVSS scores

Score	Version	Source	Vector
7.5High	3.1	CVEProject cvelistV5 (CNA) (GitHub_M)	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`

Affected products

Vendor	Product	Versions	Source
jknack	handlebars.java	< 4.5.2	CVEProject cvelistV5 (CNA)

References and advisories

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

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Details

Published: 2026-07-08
Last updated: 2026-07-09
State: Published
Assigner (CNA): GitHub_M

Exploit prediction (EPSS)

0.53%

Probability of exploitation in 30 days

45%

Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable: Yes
Exploitation: None
Technical impact: Partial

Weaknesses (CWE)

CWE-22
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')