Cross-tenant file deletion via omitted ownership filter
Published Jan 19, 2026 · Updated Jan 19, 2026
Authorization bypass in LobeHub before 2.0.0-next.193 allows remote authenticated users to delete another user's knowledge-base files. The knowledgeBase.removeFilesFromKnowledgeBase tRPC endpoint deletes rows matching attacker-supplied knowledge-base and file IDs without constraining the query by the session user ID. Exploitation requires valid access plus both random target IDs, and deletion disrupts the target's retrieval-augmented workflows without exposing file contents.
Summary
What happened
Authorization bypass in LobeHub before 2.0.0-next.193 allows remote authenticated users to delete another user's knowledge-base files. The knowledgeBase.removeFilesFromKnowledgeBase tRPC endpoint deletes rows matching attacker-supplied knowledge-base and file IDs without constraining the query by the session user ID. Exploitation requires valid access plus both random target IDs, and deletion disrupts the target's retrieval-augmented workflows without exposing file contents.
The record
- CVE
- CVE-2026-23522
- Published
- Jan 19, 2026
- Updated
- Jan 19, 2026
- Vendor
- LobeHub
- Product
- LobeHub
- Classifications
- CWE-639, CWE-284, CWE-915, CWE-862, T1485
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jan 19, 2026CVE publishedPublication date reported by the CVE source.
- Jan 19, 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=< 2.0.0-next.193
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
- GHSA-j7xp-4mg9-x28r authenticated deletion proof of conceptproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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