Authenticated file disclosure via external schema references
Published Aug 10, 2026 · Updated Aug 10, 2026
Arbitrary file read in Firecrawl before 2.11.32 allows remote authenticated users to expose worker files through the extraction API. The extraction helper passes user-supplied schemas to json-schema-ref-parser with file and HTTP resolvers enabled, including references hidden in default, const, or enum fields. Any API account, including a free-tier account, can trigger an error that persists and returns readable file contents or causes requests to internal and external endpoints.
Summary
What happened
Arbitrary file read in Firecrawl before 2.11.32 allows remote authenticated users to expose worker files through the extraction API. The extraction helper passes user-supplied schemas to json-schema-ref-parser with file and HTTP resolvers enabled, including references hidden in default, const, or enum fields. Any API account, including a free-tier account, can trigger an error that persists and returns readable file contents or causes requests to internal and external endpoints.
The record
- CVE
- CVE-2026-72904
- Published
- Aug 10, 2026
- Updated
- Aug 10, 2026
- Vendor
- Firecrawl
- Product
- Firecrawl
- Classifications
- CWE-95, CWE-78, CWE-94, CWE-77, T1190
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Aug 10, 2026CVE publishedPublication date reported by the CVE source.
- Aug 10, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=< 2.11.32
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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