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CVE-2026-72904— Firecrawl: Arbitrary file read via JSON Schema $ref expansion

CVSS 9.3 · Critical
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I. Basic Information for CVE-2026-72904

Vulnerability Information
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Vulnerability Title
Firecrawl: Arbitrary file read via JSON Schema $ref expansion
Source: CVE Program / CVE List V5
Vulnerability Description
Firecrawl turns entire websites into LLM-ready markdown or structured data. Prior to 2.11.32, a critical arbitrary file read vulnerability exists in Firecrawl's extraction functionality due to unsafe schema dereferencing of user-supplied JSON schemas in apps/api/src/lib/extract/helpers/dereference-schema.ts. The affected code invokes the json-schema-ref-parser dependency with default resolver settings, allowing external and local file references to be resolved during schema processing. An authenticated attacker can supply a malicious schema containing a $ref within default, const, or enum fields that are not traversed by AJV validation. By triggering a dereference error, file contents from the extract worker filesystem may be included in persisted error messages returned through the extraction API, enabling arbitrary file reads and SSRF against internal or external HTTP endpoints. This issue is fixed in version 2.11.32.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
在命令中使用的特殊元素转义处理不恰当(命令注入)
Source: CVE Program / CVE List V5

Affected Products

VendorProductAffected VersionsCPESubscribe
firecrawlfirecrawl < 2.11.32 -

II. Public POCs for CVE-2026-72904

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium
Qwen3.6-35B-A3B · 6742 chars
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III. Intelligence Information for CVE-2026-72904

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Patches & Fixes for CVE-2026-72904 (1)

Vendor Advisories for CVE-2026-72904 (1)

IV. Related Vulnerabilities

Same product: firecrawl
Same vendor: firecrawl
Same weakness: CWE-77

V. Comments for CVE-2026-72904

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