Medium 6.8Published Oct 25, 2026

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

Updated under an hour ago (Oct 28, 2026, 5:00 AM ET)

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Exploited in the last 30 days

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.

CVSS: 6.8 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N
Weakness (CWE): CWE-918
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Deferred
Record last updated: Oct 25, 2026
First seen by InfoSec Signals: Oct 25, 2026

Affected products

Affected products

Firecrawl Firecrawl firecrawl:firecrawl (from the name)	before 2.11.586	CNA record

References

References

https://github.com/firecrawl/firecrawl/issues/5256	issue-tracking
https://github.com/firecrawl/firecrawl	product
https://github.com/firecrawl/firecrawl/blob/5c198a7d9376fef21a7f6d74313fc957842744ad/apps/playwright-service-ts/api.ts#L47-L117	technical-description
https://github.com/firecrawl/firecrawl/commit/5e74ff37b41ac650d6bccff170a9be0a6decb946	patch
https://www.vulncheck.com/advisories/firecrawl-before-2.11.586-ssrf-protection-bypass-via-dns-rebinding-in-playwright-service	third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.