CVE-2026-55760— handlebars.java FileTemplateLoader Path Traversal
Quick assessment
Affected
jknack handlebars.java
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Edgar Espina Handlebars.java是Edgar Espina个人开发者开源的一款Java模板引擎。 Edgar Espina Handlebars.java 4.5.2之前版本存在路径遍历漏洞，该漏洞源于在使用FileTemplateLoader或ClassPathTemplateLoader时对用户可控输入验证不足，可能导致路径遍历攻击，通过URL路径参数、请求参数或其他用户可控源派生模板名称实现任意文件读取。
Affected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| jknack | handlebars.java | < 4.5.2 |
affected |
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I. Basic Information for CVE-2026-55760
Vulnerability Information
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Vulnerability Title
handlebars.java FileTemplateLoader Path Traversal
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
Edgar Espina Handlebars.java 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Edgar Espina Handlebars.java是Edgar Espina个人开发者开源的一款Java模板引擎。 Edgar Espina Handlebars.java 4.5.2之前版本存在路径遍历漏洞，该漏洞源于在使用FileTemplateLoader或ClassPathTemplateLoader时对用户可控输入验证不足，可能导致路径遍历攻击，通过URL路径参数、请求参数或其他用户可控源派生模板名称实现任意文件读取。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| jknack | handlebars.java | < 4.5.2 | - |
|
II. Public POCs for CVE-2026-55760
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
Premium
Qwen3.6-35B-A3B
· 11047 chars
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III. Intelligence Information for CVE-2026-55760
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Patches & Fixes for CVE-2026-55760 (1)
Vendor Advisories for CVE-2026-55760 (1)
Vendor Pages for CVE-2026-55760 (1)
-
🔗 Release handlebars.java 4.5.2 · jknack/handlebars.java · GitHub x_refsource_MISC
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V. Comments for CVE-2026-55760
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