CVE-2026-41947

CRITICAL EPSS 36.1%
Published May 18, 20261mo ago · Modified Jun 22, 20261w ago
9.3 CVSS 4.0
Critical
Find Similar
Published May 18, 2026 1mo ago
Last Modified Jun 22, 2026 1w ago

Description

Dify before version 1.14.2 contains an authorization bypass vulnerability that allows authenticated editor users to set and enable trace configurations for any application regardless of tenant ownership. Attackers can exploit missing tenant ownership checks in the trace configuration endpoints to redirect all messages and responses from victim applications to attacker-controlled LLM trace providers. NOTE: Dify Cloud allows unauthenticated free self-registration, making account creation trivially accessible to any attacker.

CVSS Details

Base Score
9.3
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
36.1% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 1

CWE-639

Affected Products 1

VendorProductVersionRange
difydify* ≤1.14.1

References 6

  • github.com https://github.com/langgenius/dify/commit/55d05fe52de880cd8497df8cea052351c594fad8
  • github.com https://github.com/langgenius/dify/pull/35793
    Issue TrackingMitigationPatch
  • github.com https://github.com/langgenius/dify/releases/tag/1.14.2
  • huntr.com https://huntr.com/bounties/a43076b2-fbc8-4750-9647-89a036b52f52
    ExploitThird Party Advisory
  • vulncheck.com https://www.vulncheck.com/advisories/dify-authorization-bypass-via-trace-configuration-endpoints
    Third Party Advisory
  • zafran.io https://www.zafran.io/resources/difytap-zafran-discovers-how-attackers-can-silently-wiretap-ai-data-across-tenants-on-a-platform-powering-1m-apps

Remediation

  • github.com https://github.com/langgenius/dify/pull/35793
    Issue TrackingMitigationPatch