Cross-user image disclosure via unnormalized path check
Published Jul 22, 2024 · Updated Aug 22, 2024
Path traversal in LibreChat 0.7.4-rc1 and earlier allows remote authenticated users to read other users' uploaded images. The validateImageRequest middleware checks that the raw image path contains the requester's user ID but does not normalize it before authorization. A signed, unexpired session and a known image URL are required; a ../ segment preserves the requester's ID in the check while resolving to another user's file.
Summary
What happened
Path traversal in LibreChat 0.7.4-rc1 and earlier allows remote authenticated users to read other users' uploaded images. The validateImageRequest middleware checks that the raw image path contains the requester's user ID but does not normalize it before authorization. A signed, unexpired session and a known image URL are required; a ../ segment preserves the requester's ID in the check while resolving to another user's file.
The record
- CVE
- CVE-2024-41704
- Published
- Jul 22, 2024
- Updated
- Aug 22, 2024
- Vendor
- Danny Avila
- Product
- LibreChat
- Classifications
- CWE-22, T1190
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jul 22, 2024CVE publishedPublication date reported by the CVE source.
- Aug 22, 2024Record 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=0 <=0.7.4-rc1
What conditions does exploitation require?
What is affected?
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
- REA Group cross-user image traversal reproductionproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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