CVE-2026-41947Public exploitNetwork attack vector

Cross-tenant message exfiltration via unscoped trace configuration

Published May 18, 2026 · Updated May 18, 2026

Authorization bypass in LangGenius Dify before 1.14.2 allows remote authenticated users to redirect victim application traces. The trace configuration handlers accept an application ID and update tracing settings without resolving the application within the account's tenant. An editor account and victim application ID are required; exploitation persistently sends application messages and model responses to an attacker-controlled trace provider.

CVSS severity9.3
Critical
EPSS probability5.97%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authorization bypass in LangGenius Dify before 1.14.2 allows remote authenticated users to redirect victim application traces. The trace configuration handlers accept an application ID and update tracing settings without resolving the application within the account's tenant. An editor account and victim application ID are required; exploitation persistently sends application messages and model responses to an attacker-controlled trace provider.

The record

CVE
CVE-2026-41947
Published
May 18, 2026
Updated
May 18, 2026
Vendor
LangGenius
Product
Dify
Classifications
CWE-639, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 18, 2026CVE publishedPublication date reported by the CVE source.
  2. May 18, 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 <=1.14.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

LangGenius · Difyversion=0 <=1.14.1

Published CVSS scores

9.1VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
9.3VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA: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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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
T1190Exploit Public-Facing Application

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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