CVE-2026-116066

Medium

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.

SeverityMedium

CVSS6.8

Exploit probability—

ProductFirecrawl

PublishedOct 25, 2026

First seenOct 25, 2026

Weakness typeCWE-918Server-side request forgery (SSRF)

How to fix

Update

Firecrawl Firecrawl2.11.586 or later

Patches

github.com/firecrawl/firecrawl/commit/5e74ff37b41ac650d6bccff170a9be0a6decb946

Affected products

Product	Affected versions	Fixed in
Firecrawl Firecrawl	v < 2.11.586	2.11.586

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