Medium severity · published Oct 25, 2026
CVE-2026-116066
Firecrawl before 2.11.586 SSRF Protection Bypass via DNS Rebinding in Playwright Service
New
6.8
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 20% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FI
Firecrawl · Firecrawl
before 2.11.586 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-116066
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-116066
github.com
https://github.com/firecrawl/firecrawl
github.com
https://github.com/firecrawl/firecrawl/blob/5c198a7d9376fef21a7f6d74313fc957842744ad/apps/playwright-service-ts/api.ts#L47-L117
github.com
https://github.com/firecrawl/firecrawl/commit/5e74ff37b41ac650d6bccff170a9be0a6decb946
github.com
https://github.com/firecrawl/firecrawl/issues/5256
www.vulncheck.com
https://www.vulncheck.com/advisories/firecrawl-before-2.11.586-ssrf-protection-bypass-via-dns-rebinding-in-playwright-service
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