LobeChat is an open source chat application platform. Prior to version 2.0.0-next.193, knowledgeBase.removeFilesFromKnowledgeBase tRPC ep allows authenticated users to delete files from any knowledge base without verifying ownership. userId filter in the database query is commented out, so it's enabling attackers to delete other users' KB files if they know the knowledge base ID and file ID. While the vulnerability is confirmed, practical exploitation requires knowing target's KB ID and target's file ID. These IDs are random and not easily enumerable. However, IDs may leak through shared links, logs, referrer headers and so on. Missing authorization check is a critical security flaw regardless. Users should upgrade to version 2.0.0-next.193 to receive a patch.
CVE-2026-23522
Score 3.7 from GitHub Security Advisory (severity: LOW) published 2026-01-20. NVD baseline CVSS 3.7; sources differ by 0.0.
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 3.7
- EG Score
- 3.7(medium)
- EPSS
- 9.3%
- KEV
- Not listed
Published
January 19, 2026
Last Modified
April 15, 2026
References (2)
- security-advisories@githubhttps://github.com/lobehub/lobe-chat/commit/2c1762b85acb84467ed5e799afe1499cd2f912e6
- security-advisories@githubhttps://github.com/lobehub/lobe-chat/security/advisories/GHSA-j7xp-4mg9-x28r
Patch Availability(1)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| npm | @lobehub/chat | — | ghsa |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(1 across 1 ecosystem)
npm(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| @lobehub/chat | — | — | — |
Weakness Classification(4)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 15× in last 7d / 51× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 120 total refreshes for this CVE.
- 2026-07-21 15:24 UTCEPSS rescore
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- 2026-07-20 17:08 UTCEPSS rescore
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- 2026-07-09 20:15 UTCOSV refresh
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- 2026-07-07 13:46 UTCEPSS rescore
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- 2026-06-21 14:56 UTCEPSS rescore
- 2026-06-21 05:41 UTCOSV refresh
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- 2026-06-06 13:47 UTCEPSS rescore
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- 2026-06-02 20:13 UTCEPSS rescore
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- 2026-06-01 18:27 UTCOSV refresh
- 2026-06-01 13:51 UTCEPSS rescore
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Related CVEs(same product + same CWE)
Same CWE
10 shownCWE-862 · CWE-284
Frequently asked(5)
What is CVE-2026-23522?
When was CVE-2026-23522 disclosed?
Is CVE-2026-23522 actively exploited?
What is the CVSS score of CVE-2026-23522?
How do I remediate CVE-2026-23522?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-23522
Is Your Infrastructure Affected by CVE-2026-23522?
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