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CVE-2026-116066— Firecrawl before 2.11.586 SSRF Protection Bypass via DNS Rebinding in Playwright Service

Quick assessment

Affected
Firecrawl Firecrawl
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Firecrawl 2.11.586 之前的版本在 Playwright 服务的 SSRF 代理中存在服务端请求伪造（SSRF）漏洞。攻击者可通过 DNS 重绑定（DNS rebinding）绕过 检查。若攻击者能够控制目标网站的 DNS 解析，可在验证阶段返回公网地址，而在建立连接时返回内网地址，从而通过爬虫 API 窃取云元数据及内部资源。

CVSS 6.8 · Medium
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I. Basic Information for CVE-2026-116066

Vulnerability Information
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Vulnerability Title
Firecrawl before 2.11.586 SSRF Protection Bypass via DNS Rebinding in Playwright Service
Source: CVE Program / CVE List V5
Vulnerability Description
Firecrawl before 2.11.586 contains a server-side request forgery vulnerability in the Playwright service SSRF proxy that allows attackers to bypass isInternalHost checks via DNS rebinding. Attackers controlling DNS for a scrape target can return a public address during validation and a private address at connect time, retrieving cloud metadata and internal resources through the scrape API.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Firecrawl Firecrawl 0 ~ 2.11.586 -

II. Public POCs for CVE-2026-116066

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-116066

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Patches & Fixes for CVE-2026-116066 (1)

Vendor Advisories for CVE-2026-116066 (1)

Other References for CVE-2026-116066 (1)

IV. Related Vulnerabilities

Same product: Firecrawl
Same vendor: Firecrawl
Same weakness: CWE-918