CVE-2026-85008— Undici 缓存与重放不安全HTTP方法响应漏洞
一分钟漏洞结论
影响对象
undici undici
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。
undici 的缓存拦截器文档声称只有“安全”的 HTTP 方法会被缓存，但其跳过缓存的逻辑是通过从安全方法集合中减去配置的方法来构建的，导致诸如 POST、PUT 或 DELETE 等“非安全”方法永远不会被列入跳过缓存列表，而是直接落入完整的缓存读取路径。此外，响应存储的门槛也缺乏方法检查，因此针对非安全请求的响应如果被认为是可启发式缓存的，或携带了显式的 指令，也会被存入缓存，并在后续从缓存中重放。由于来自远程源站的响应头是不可信的，源站可以首次返回一个可缓存的状态码，随后客户端对该路径发起的后续会改变状态（
可能的 ATT&CK 技术 1 AI
T1557 · Adversary-in-the-Middle
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一、 漏洞 CVE-2026-85008 基础信息
漏洞信息
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Vulnerability Title
undici vulnerable to caching and replay of unsafe HTTP method responses
来源: CVE Program / CVE List V5
Vulnerability Description
undici's cache interceptor documents that only safe HTTP methods are cached, but its logic to skip caching is built by subtracting the configured methods from the set of safe methods, so an unsafe method such as POST, PUT, or DELETE is never placed in the skip list and instead falls through to the full cache-read path. The response-storage gate also lacked a method check, so a response to an unsafe request that is heuristically cacheable or carries an explicit Cache-Control directive is stored and later replayed from cache. Because response headers from a remote origin are untrusted, an origin can answer once with a cacheable status and then have the client's own subsequent state-changing requests to that path served from the stale cache entry without ever reaching the origin, an integrity failure that occurs under the interceptor's default configuration. This affects undici versions from 7.0.0 up to 7.29.1 and from 8.0.0 up to 8.10.2. Users should upgrade to undici 7.29.1 or 8.10.2.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
来源: CVE Program / CVE List V5
Vulnerability Type
对数据真实性的验证不充分
来源: CVE Program / CVE List V5
受影响产品
二、漏洞 CVE-2026-85008 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2026-85008 厂商安全公告 (1)
同批安全公告 · undici · 2026-09-04 · 共 11 条
| CVE-2026-19534 | 7.5 HIGH | undici WebSocket拒绝服务漏洞 |
| CVE-2026-85152 | 7.4 HIGH | Undici 拦截器跨域缓存投毒漏洞 |
| CVE-2026-84961 | 7.4 HIGH | Undici 1.4.3 证书验证绕过漏洞 |
| CVE-2026-84933 | 6.5 MEDIUM | Undici 跨用户Cookie信息泄露漏洞 |
| CVE-2026-85024 | 5.9 MEDIUM | Undici WebSocket 消息膨胀导致拒绝服务漏洞 |
| CVE-2026-85014 | 5.9 MEDIUM | undici WebSocket流异常关闭拒绝服务漏洞 |
| CVE-2026-18149 | 5.9 MEDIUM | undici 拒绝服务漏洞 |
| CVE-2026-84890 | 5.9 MEDIUM | undici 压缩响应无限解压缩拒绝服务漏洞 |
| CVE-2026-84947 | 3.7 LOW | Undici 超大分块响应导致响应截断漏洞 |
| CVE-2026-18540 | 3.7 LOW | Undici 响应拆分歧义漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2026-85008
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