CVE-2026-46640 漏洞深度分析

漏洞概述

CVE 编号: CVE-2026-46640
CVSS 评分: 8.7(HIGH)
CVSS 向量: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CWE 分类: CWE-94
漏洞状态: Received
发布时间: 2026-07-14T22:16:56.840
最后更新: 2026-07-14T22:16:56.840

漏洞描述

Twig is a template language for PHP. From 3.15.0 until 3.26.0, _self.() and import-alias dynamic attribute syntax can concatenate an attacker-controlled string into a MacroReferenceExpression name without identifier validation, causing raw PHP to be emitted into the generated template source and executed at template-load time. This issue is fixed in version 3.26.0.

影响分析

此漏洞的具体影响取决于实际利用场景。"

修复建议

  1. 及时关注厂商发布的安全更新和补丁
  2. 升级受影响组件到最新版本
  3. 如无法立即升级,参考厂商提供的临时缓解措施
  4. 加强网络访问控制和监控

参考链接

  1. https://github.com/twigphp/Twig/commit/324fa60545694fa6abe85ded9befcb82e1066bc2
  2. https://github.com/twigphp/Twig/releases/tag/v3.26.0
  3. https://github.com/twigphp/Twig/security/advisories/GHSA-45vw-wh46-2vx8