CVE-2026-47767 漏洞深度分析

漏洞概述

CVE 编号: CVE-2026-47767
CVSS 评分: 8.3(HIGH)
CVSS 向量: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/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-436
漏洞状态: Undergoing Analysis
发布时间: 2026-07-14T19:17:09.237
最后更新: 2026-07-14T20:25:54.190

漏洞描述

Symfony is a PHP framework for web and console applications and a set of reusable PHP components. From 5.4.46 until 5.4.52, 6.4.40, 7.4.12, and 8.0.12, the CVE-2024-50340 fix gated runtime argv parsing on empty($_GET), but parse_str() and the web SAPI can disagree, allowing a crafted query string to leave $_GET empty while $_SERVER['argv'] still carries attacker-controlled --env or --no-debug flags that change APP_ENV or APP_DEBUG. This issue is fixed in versions 5.4.52, 6.4.40, 7.4.12, and 8.0.12.

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/symfony/symfony/commit/3228c3806ee511008bea19a95084d460b17e5d25
  2. https://github.com/symfony/symfony/releases/tag/v5.4.52
  3. https://github.com/symfony/symfony/releases/tag/v6.4.40
  4. https://github.com/symfony/symfony/releases/tag/v7.4.12
  5. https://github.com/symfony/symfony/releases/tag/v8.0.12