CVE-2026-118514— Symfony 安全访问控制规则 HEAD 请求绕过漏洞
一分钟漏洞结论
影响对象
symfony symfony
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
在 Symfony 组件的以下版本之前（5.4.56 之前、6.4.50 之前、7.4.23 之前以及 8.1.11 之前）， 以及自 6.2.x 版本起替代它的 ，在将请求与 HTTP 方法列表进行匹配时，会逐字（verbatim）比较请求方法与列表中的方法。然而，根据 HTTP 语义规范，路由器在处理 请求时，会调用 请求的处理程序（handler）。 此漏洞是此前对 CVE-2026-45075（参考链接：https://github.com/advisories/GHSA-6439-2f28-8p8q）修复
获取后续新漏洞提醒
登录后订阅
一、 漏洞 CVE-2026-118514 基础信息
漏洞信息
对漏洞内容有疑问？看看神龙的深度分析是否有帮助！
查看神龙十问 ↗
尽管我们使用了先进的大模型技术，但其输出仍可能包含不准确或过时的信息。神龙努力确保数据的准确性，但请您根据实际情况进行核实和判断。
Vulnerability Title
Symfony: HEAD Requests Bypass the methods Option of security.access_control Rules and Firewalls
来源: CVE Program / CVE List V5
Vulnerability Description
In Symfony http-foundation prior to versions 5.4.56, 6.4.50, 7.4.23, and 8.1.11, Symfony\Component\HttpFoundation\RequestMatcher, and RequestMatcher\MethodRequestMatcher which replaces it from 6.2.x on, matches a request against a list of HTTP methods. These compared the request method to the list verbatim, while the router serves a HEAD request with the GET handler, as HTTP semantics require.
This came after the incomplete fix of CVE-2026-45075 https://github.com/advisories/GHSA-6439-2f28-8p8q , which addressed the same gap in the #[IsGranted], #[IsSignatureValid] and #[IsCsrfTokenValid] attributes only.
Security rules configured to apply only to GET requests could therefore be bypassed by sending a HEAD request to the same URL. Although HEAD responses contain no body, attackers could still access response headers and trigger the controller's execution, including any side effects.
This issue also affects firewalls configured with methods: [GET]. A HEAD request would not match that firewall and could instead be handled by another matching firewall or no firewall at all. Applications using these vulnerable request matchers directly, including through a custom firewall request_matcher, could also be affected.
The issue affects symfony/http-foundation through v5.4.55, v6.x through 6.4.49, v7.x through v7.4.22, and v8.x through v8.1.10.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
来源: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
来源: CVE Program / CVE List V5
受影响产品
二、漏洞 CVE-2026-118514 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
AI 生成 POC
高级
未找到公开 POC。
登录以生成 AI POC三、漏洞 CVE-2026-118514 的情报信息
请登录查看更多情报信息。