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

> CVE-2026-116066: Firecrawl before 2.11.586 SSRF Protection Bypass via DNS Rebinding in Playwright Service. CVSS 6.8 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-116066
Last updated: 2026-10-29T20:17:26Z

- Published: 2026-10-25 11:50 UTC · Updated: 2026-10-29 20:17 UTC · Assigner: VulnCheck
- CVSS: 6.8 (CVSS 3.1) · Severity: Medium · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N
- EPSS: 0.28%, 20th percentile (scored 2026-11-04)
- CISA KEV: no
- CWE: CWE-918

## 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.

## Affected vendors and products

- Firecrawl: Firecrawl

## Tracked companies

- [Firecrawl](https://rewindex.com/company/firecrawl.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-116066)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-116066)
- [https://github.com/firecrawl/firecrawl](https://github.com/firecrawl/firecrawl)
- [https://github.com/firecrawl/firecrawl/blob/5c198a7d9376fef21a7f6d74313fc957842744ad/apps/playwright-service-ts/api.ts\#L47-L117](https://github.com/firecrawl/firecrawl/blob/5c198a7d9376fef21a7f6d74313fc957842744ad/apps/playwright-service-ts/api.ts#L47-L117)
- [https://github.com/firecrawl/firecrawl/commit/5e74ff37b41ac650d6bccff170a9be0a6decb946](https://github.com/firecrawl/firecrawl/commit/5e74ff37b41ac650d6bccff170a9be0a6decb946)
- [https://github.com/firecrawl/firecrawl/issues/5256](https://github.com/firecrawl/firecrawl/issues/5256)
- [https://www.vulncheck.com/advisories/firecrawl-before-2.11.586-ssrf-protection-bypass-via-dns-rebinding-in-playwright-service](https://www.vulncheck.com/advisories/firecrawl-before-2.11.586-ssrf-protection-bypass-via-dns-rebinding-in-playwright-service)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-116066 · Markdown: https://rewindex.com/cve/CVE-2026-116066.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-116066 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-04T16:33:29.341Z