جزئیات آسیبپذیری
CVE-2026-106446
Handlebars: JavaScript Injection via AST Type Confusion in compile (Program.blockParams)
شرح رسمی (انگلیسی)
Handlebars provides the power necessary to let users build semantic templates. From 4.0.0 until 4.7.10, Handlebars.compile() and Handlebars.precompile() accept pre-parsed AST objects while validating only selected PathExpression, NumberLiteral, and BooleanLiteral values. This issue bypasses the AST validation introduced in version 4.7.9 for CVE-2026-33937. An attacker who can supply an object instead of a template string can place JavaScript expressions in unchecked values such as Program.blockParams.length, a non-PathExpression parameter depth, a non-string StringLiteral.value, or a non-string PathExpression.original. The compiler emits those values into generated JavaScript, causing code execution in the server process when compile output renders or wherever precompile output is loaded. Applications that pass only template strings are not affected. This issue is fixed in version 4.7.10.
امتیازهای CVSS
| امتیاز | نسخه | منبع | بردار |
|---|---|---|---|
| 9.8بحرانی | 3.1 | CVEProject cvelistV5 (CNA) (GitHub_M) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
محصولات آسیبپذیر
| فروشنده | محصول | نسخهها | منبع |
|---|---|---|---|
| handlebars-lang | handlebars.js | >= 4.0.0, < 4.7.10 | CVEProject cvelistV5 (CNA) |
منابع و راهنماها
۴- https://github.com/handlebars-lang/handlebars.js/pull/2185 x_refsource_MISC
- https://github.com/handlebars-lang/handlebars.js/commit/703fdcc5fd6cc8d1cc0c33cc19de40c467c4b8d2 x_refsource_MISC
- https://github.com/handlebars-lang/handlebars.js/releases/tag/v4.7.10 x_refsource_MISC
- https://github.com/handlebars-lang/handlebars.js/security/advisories/GHSA-8r5x-fm3f-whwj x_refsource_CONFIRM
اطلاعات
- تاریخ انتشار
- ۱۴۰۵/۰۷/۱۴
- آخرین بهروزرسانی
- ۱۴۰۵/۰۷/۱۵
- وضعیت
- منتشرشده
- صادرکننده (CNA)
- GitHub_M
پیشبینی بهرهبرداری (EPSS)
ارزیابی SSVC (CISA)
- قابل خودکارسازی
- بله
- وضعیت بهرهبرداری
- اثبات مفهوم
- اثر فنی
- کامل
ضعفها (CWE)
- CWE-94Improper Control of Generation of Code ('Code Injection')
- CWE-843Access of Resource Using Incompatible Type ('Type Confusion')