CVE-2026-72904
CriticalCVSS 9.3Exploitation Probability (EPSS)
Low risk22th percentile - higher than 22% of all known CVEs
Summary
Firecrawl prior to version 2.11.32 contains a critical arbitrary file read vulnerability in its extraction functionality due to unsafe dereferencing of user-supplied JSON schemas. An authenticated attacker can supply a malicious schema with a $ref, allowing file reads from the extract worker filesystem and SSRF against internal or external HTTP endpoints.
Risk Assessment
Risk of leaking sensitive files from the server and using the server as a proxy for attacks on other systems (SSRF).
Recommendation
Update Firecrawl to version 2.11.32 or later. Restrict access to the extraction API and validate JSON schemas before processing.
Other vulnerabilities in Firecrawl
See all- CVE-2026-116066Medium
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.
- CVE-2026-32857High
Firecrawl version 2.8.0 and prior contain a server-side request forgery (SSRF) protection bypass vulnerability in the Playwright scraping service where network policy validation is applied only to the initial user-supplied URL and not to subsequent redirect destinations. Attackers can supply an externally valid URL that passes validation and returns an HTTP redirect to an internal or restricted resource, allowing the browser to follow the redirect and fetch the final destination without revalidation.
Original NVD description (English source)
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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS