Which versions of Dify are affected by EUVD-2026-30771?

Dify versions 0-1.14.1 contain a critical vulnerability (CVE-2026-41948, CVSS 9.2) enabling authenticated users to escape tenant isolation and access other organizations' confidential data and…

Is there a public PoC exploit available for EUVD-2026-30771?

Yes, a public proof-of-concept exploit is available for EUVD-2026-30771. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate EUVD-2026-30771?

Within 24 hours: Determine if your organization uses Dify (self-hosted or cloud); if yes, document all connected data sources and dependent systems. Within 7 days: For self-hosted deployments, disable free registration, restrict Plugin Daemon network access to trusted internal networks only, and audit existing accounts for unauthorized cross-tenant access. Within 30 days: Monitor Dify security advisories for a patch targeting version 1.14.2 or later; when available, deploy immediately; if no patch is released within 60 days, initiate migration planning to alternative platforms.

Dify EUVD-2026-30771

Q: What is the CVSS score of EUVD-2026-30771?

EUVD-2026-30771 has a CVSS 4.0 base score of 9.3 (Critical). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/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. EPSS exploitation probability: 0.1%.

| CVE-2026-41948 CRITICAL

Relative Path Traversal (CWE-23)

2026-05-18 VulnCheck

GHSA-h666-98mq-949j

Path Traversal Dify

9.3

CVSS 4.0 · Vendor: VulnCheck

Severity by source

Vendor (VulnCheck) PRIMARY

9.3 CRITICAL

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/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

Primary rating from Vendor (VulnCheck) · only source for this CVE.

CVSS VectorVendor: VulnCheck

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/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

Lifecycle Timeline

CVSS changed

May 26, 2026 - 17:22 NVD

9.2 (CRITICAL) 9.3 (CRITICAL)

Analysis Updated

May 18, 2026 - 15:28 vuln.today

v2 (cvss_changed)

Re-analysis Queued

May 18, 2026 - 15:22 vuln.today

cvss_changed

Severity Changed

May 18, 2026 - 15:22 NVD

HIGH CRITICAL

CVSS changed

May 18, 2026 - 15:22 NVD

7.7 (HIGH) 9.2 (CRITICAL)

Source Code Evidence Fetched

May 18, 2026 - 15:00 vuln.today

Analysis Generated

May 18, 2026 - 15:00 vuln.today

DescriptionCVE.org

Dify version 1.14.1 and prior contain a path traversal vulnerability that allows authenticated users to manipulate requests forwarded to the Plugin Daemon's internal REST API by exploiting insufficient URL path sanitization. Attackers can traverse out of their authorized tenant path using unencoded dot sequences in task identifiers or manipulated filename parameters to access internal endpoints such as debug interfaces, requiring only knowledge of the victim tenant's UUID. NOTE: Dify Cloud allows unauthenticated free self-registration, making account creation trivially accessible to any attacker.

AnalysisAI

Path traversal in Dify versions 0 through 1.14.1 allows authenticated tenants to escape their authorized tenant path and reach the Plugin Daemon's internal REST API, including debug interfaces, by smuggling unencoded dot sequences through task identifiers or filename parameters. Because Dify Cloud permits unauthenticated free self-registration, the authentication barrier collapses to trivial account creation, and publicly available exploit code exists; the attacker only needs the victim tenant's UUID to pivot. CVSS 4.0 is rated 9.2 with high confidentiality and integrity impact.