Trending
CVE-2026-41949

CVE detail

CVE-2026-41949

Dify before version 1.14.2 contains an authorization bypass vulnerability in the file preview endpoint that allows any authenticated user to read up to 3,000 characters of any uploaded document across all tenants and workspaces using only the file's UUID. Attackers can access the /console/api/files/{file_id}/preview endpoint with an intercepted file UUID to extract sensitive content from documents without ownership or workspace permission verification. NOTE: Dify Cloud allows unauthenticated free self-registration, making account creation trivially accessible to any attacker.

CVSS 8.2 · HighBuzz score 38.0

Buzz score

Why this CVE is surfacing

Buzz score total 38.0

This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.

Buzz score components · mention 22.0 · diversity 16.0 · KEV 0.0 · OTX 0.0 · PoC 0.0

Mention score

22.0

8 evidence mentions in the snapshot

Diversity score

16.0

6 sources across 2 categories

KEV score

0.0

No KEV entry observed

OTX score

0.0

0 OTX pulses

PoC score

0.0

0 repos · best confidence N/A

Best PoC traction

Maximum stars on a matched PoC repo

Why it matters now

Mention timeline

Total mentions: 0; within the 30d window
Peak daily: 0; highest bucket

Evidence

Source links by recency

Newest mentions first

8 source links · newest first

DifyTap: Four Bugs Put over 1 million AI Apps at RiskSecurity Affairs
Four flaws in Dify exposed cross-tenant data, documents and AI conversations. Two critical bugs enabled unauthenticated access and data theft. Zafran Labs researchers disclosed four vulnerabilities in Dify, the open-source AI platform used by major companies like Volvo and Maersk to run over a million applications across over 60 industries. Two vulnerabilities are of critical […]
newssecurityaffairs.comJun 23, 2026, 5:01 PM
Data Exposure Flaws Threaten Dify AI Platform Used by 1 Million AppsSecurityWeek
Attackers could abuse Dify’s multi-tenant cloud service to read private chats, preview other tenants’ documents, and reach internal APIs.
newswww.securityweek.comJun 23, 2026, 3:36 PM
https://www.zafran.io/resources/difytap-zafran-discovers-how-attackers-can-silently-wiretap-ai-data-across-tenants-on-a-platform-powering-1m-appswww.zafran.io
No excerpt available.
Exploitwww.zafran.ioMay 18, 2026, 3:16 PM
https://www.vulncheck.com/advisories/dify-authorization-bypass-via-file-preview-endpointwww.vulncheck.com
No excerpt available.
Exploitwww.vulncheck.comMay 18, 2026, 3:16 PM
https://huntr.com/bounties/d50a0240-7951-4939-b989-9bded66c7682huntr.com
No excerpt available.
Exploithuntr.comMay 18, 2026, 3:16 PM
https://github.com/langgenius/dify/releases/tag/1.14.2github.com
No excerpt available.
Exploitgithub.comMay 18, 2026, 3:16 PM
https://github.com/langgenius/dify/pull/35797github.com
No excerpt available.
Exploitgithub.comMay 18, 2026, 3:16 PM
https://github.com/langgenius/dify/commit/432a6412a3fdb30ce48003d699b90cc7d890df20github.com
No excerpt available.
Exploitgithub.comMay 18, 2026, 3:16 PM

Exploit code

Public exploit repository references

Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.

0 repository references · best confidence N/A · max 0 stars

No public PoC repositories have been matched yet.

Related records

Similar CVEs

6 related CVEs with shared weakness or product evidence

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CVE-2026-19838
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CVE-2026-19836
A security flaw has been discovered in Webkul Bagisto up to 2.4.4. Affected by this issue is some unknown functionality of the file /admin/customers/view of the component Backend…
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CVE-2026-19834
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External lookup

Potential internet exposure

Potential exposure only — not proof of vulnerability.Shodan results indicate potentially internet-exposed products, not confirmed vulnerable systems. They do not confirm that any returned system is vulnerable to CVE-2026-41949.

Product-level CPE searches intentionally omit version fields and NVD version-range or configuration certainty. Verify the exact product version and configuration independently.

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Product CPE queries

Derived from this CVE's existing NVD CPE 2.3 records; the application, operating-system, or hardware part is retained.

cpe:2.3:a:dify:difySearch this product on Shodan

Exact CVE query

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vuln:CVE-2026-41949Search this CVE on Shodan

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Metadata

Canonical fields

NVD status

Modified

Published

May 18, 2026

Modified

Jun 22, 2026

Official record

Authoritative NVD record

CVSS vector

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

CWE IDs

Vendor classifications

How this vector reads

CVSS 4.0 base metrics decoded below. This explanation does not recalculate or change the NVD score.

Attack Vector (AV): Network. The vulnerable system can be reached across network boundaries.
Attack Complexity (AC): High. Successful exploitation depends on conditions outside the attacker's control.
Attack Requirements (AT): None. No prerequisite deployment or execution condition is required.
Privileges Required (PR): None. The attacker needs no privileges on the vulnerable system.
User Interaction (UI): None. Exploitation does not require a targeted user to act.
Vulnerable System Confidentiality (VC): High. There is a total or serious impact to this security property.
Vulnerable System Integrity (VI): None. There is no direct impact to this security property.
Vulnerable System Availability (VA): None. There is no direct impact to this security property.
Subsequent System Confidentiality (SC): None. There is no direct impact to this security property.
Subsequent System Integrity (SI): None. There is no direct impact to this security property.
Subsequent System Availability (SA): None. There is no direct impact to this security property.

Optional CVSS v4 metrics remain in the raw vector; only base metrics are expanded here.

Signals

Exploitation indicators

0 stored signals · no KEV · 0 OTX pulses