CVE-2026-59098Public exploitNetwork attack vector

Cross-user document disclosure via unscoped semantic search

Published Jul 2, 2026 · Updated Jul 2, 2026

Broken access control in LobeHub 2.2.9 and earlier allows remote authenticated users to read other users' RAG document data. The ChunkModel semanticSearch methods omit the caller's user identifier from chunk and embedding queries, while the chat path resolves supplied knowledge-base identifiers without ownership scoping. Any account on a shared server can retrieve another user's chunk text, file names, and metadata, and omitting file identifiers searches the instance-wide corpus.

CVSS severity7.1
High
EPSS probability0.41%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Broken access control in LobeHub 2.2.9 and earlier allows remote authenticated users to read other users' RAG document data. The ChunkModel semanticSearch methods omit the caller's user identifier from chunk and embedding queries, while the chat path resolves supplied knowledge-base identifiers without ownership scoping. Any account on a shared server can retrieve another user's chunk text, file names, and metadata, and omitting file identifiers searches the instance-wide corpus.

The record

CVE
CVE-2026-59098
Published
Jul 2, 2026
Updated
Jul 2, 2026
Vendor
LobeHub
Product
LobeHub
Classifications
CWE-639, T1213
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 2, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 2, 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.

  1. Affected versionversion=0 <=2.2.9

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

LobeHub · LobeHubversion=0 <=2.2.9

Published CVSS scores

7.1VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
6.5VulnCheckCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-639Authorization Bypass Through User-Controlled Key
T1213Data from Information Repositories

Public exploit references

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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