CWE-639
Authorization Bypass Through User-Controlled Key
The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.
CVE-2026-41947 (GCVE-0-2026-41947)
Vulnerability from cvelistv5 – Published: 2026-05-18 13:48 – Updated: 2026-05-26 16:01 X_Open Source
VLAI
Title
Dify < 1.14.2 Authorization Bypass via Trace Configuration Endpoints
Summary
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.
Severity
9.1 (Critical)
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://huntr.com/bounties/a43076b2-fbc8-4750-964… | technical-descriptionexploit |
| https://github.com/langgenius/dify/releases/tag/1.14.2 | release-notes |
| https://github.com/langgenius/dify/pull/35793 | issue-tracking |
| https://github.com/langgenius/dify/commit/55d05fe… | patch |
| https://www.vulncheck.com/advisories/dify-authori… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| langgenius | dify |
Affected:
0 , < 1.14.2
(semver)
|
Date Public
2026-03-30 00:00
Credits
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CVE-2026-41949 (GCVE-0-2026-41949)
Vulnerability from cvelistv5 – Published: 2026-05-18 13:52 – Updated: 2026-05-26 16:06 X_Open Source
VLAI
Title
Dify < 1.14.2 Authorization Bypass via File Preview Endpoint
Summary
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.
Severity
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://huntr.com/bounties/d50a0240-7951-4939-b98… | technical-descriptionexploit |
| https://github.com/langgenius/dify/releases/tag/1.14.2 | release-notes |
| https://github.com/langgenius/dify/pull/35797 | issue-tracking |
| https://github.com/langgenius/dify/commit/432a641… | patch |
| https://www.vulncheck.com/advisories/dify-authori… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| langgenius | dify |
Affected:
0 , < 1.14.2
(semver)
|
Date Public
2026-03-30 00:00
Credits
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CVE-2026-41950 (GCVE-0-2026-41950)
Vulnerability from cvelistv5 – Published: 2026-05-05 20:35 – Updated: 2026-05-06 12:52 X_Open Source
VLAI
Title
Dify < 1.14.0 Authorization Bypass via File UUID
Summary
Dify before version 1.14.0 contains an authorization bypass vulnerability that allows authenticated users to read the full contents of files uploaded by other users within the same tenant by supplying an arbitrary file UUID in the files array of a chat-messages request. Attackers can exploit insufficient permission verification in the chat-messages endpoints to access files without ownership validation, bypassing workspace separation and signed URL protections to retrieve sensitive file contents through workflow processing.
Severity
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/langgenius/dify/releases/tag/1.14.0 | release-notespatch |
| https://huntr.com/bounties/181136ec-d957-4b75-8ea… | technical-descriptionexploit |
| https://www.vulncheck.com/advisories/dify-authori… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| langgenius | dify |
Affected:
0 , < 1.14.0
(semver)
|
Date Public
2026-03-30 00:00
Credits
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CVE-2026-4208 (GCVE-0-2026-4208)
Vulnerability from cvelistv5 – Published: 2026-03-17 08:34 – Updated: 2026-03-24 17:20
VLAI
Title
Authentication Bypass in extension "E-Mail MFA Provider" (mfa_email)
Summary
The extension fails to properly reset the generated MFA code after successful authentication. This leads to a possible MFA bypass for future login attempts by providing an empty string as MFA code to the extensions MFA provider.
Severity
CWE
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| TYPO3 | Extension "E-Mail MFA Provider" |
Affected:
0 , ≤ 1.0.5
(semver)
Affected: 2.0.0 (semver) |
Date Public
2026-03-17 09:00
Credits
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CVE-2026-42097 (GCVE-0-2026-42097)
Vulnerability from cvelistv5 – Published: 2026-05-19 12:59 – Updated: 2026-05-19 15:28
VLAI
Title
Authentication Bypass in Sparx Pro Cloud Server
Summary
Sparx Pro Cloud Server requires authentication based on requested URL. An attacker can omit the "model" query parameter and send the model name only in the binary blob in POST request allowing SQL query execution without authentication.
The vendor was notified early about this vulnerability, but didn't respond with the details of vulnerability or vulnerable version range. Only version 6.1 (build 167) and below were tested and confirmed as vulnerable, other versions were not tested and might also be vulnerable.
Severity
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://cert.pl/en/posts/2026/05/CVE-2026-42096 | third-party-advisory |
| https://sparxsystems.com/products/procloudserver/ | product |
| https://sploit.tech/2026/05/19/Sparx-Enterprise-A… | technical-description |
| https://efigo.pl/blog/CVE-2026-42096/ | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Sparx Systems | Pro Cloud Server |
Affected:
0 , ≤ 6.1
(semver)
|
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CVE-2026-42205 (GCVE-0-2026-42205)
Vulnerability from cvelistv5 – Published: 2026-05-08 21:26 – Updated: 2026-05-12 18:31
VLAI
Title
Avo: Broken Access Control: Unauthorized Execution of Arbitrary Action Classes Across Resources
Summary
Avo is a framework to create admin panels for Ruby on Rails apps. Prior to version 3.31.2, a broken access control vulnerability was identified in the ActionsController of the Avo framework. Due to insecure action lookup logic, an authenticated user can execute any Action class (descendants of Avo::BaseAction) on any resource, even if the action is not registered for that specific resource. This leads to Privilege Escalation and unauthorized data manipulation across the entire application. This issue has been patched in version 3.31.2.
Severity
8.8 (High)
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/avo-hq/avo/security/advisories… | x_refsource_CONFIRM |
| https://github.com/avo-hq/avo/releases/tag/v3.31.2 | x_refsource_MISC |
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CVE-2026-42227 (GCVE-0-2026-42227)
Vulnerability from cvelistv5 – Published: 2026-05-04 18:26 – Updated: 2026-05-05 14:14
VLAI
Title
n8n: Public API Variables IDOR Allows Cross-Project Secret Disclosure
Summary
n8n is an open source workflow automation platform. Prior to versions 1.123.32, 2.17.4, and 2.18.1, an authenticated user with a valid API key scoped to variable:list could read variables from projects they are not a member of by supplying an arbitrary projectId query parameter to the public API variables endpoint. The handler queried the variables repository directly without enforcing project membership checks, bypassing the authorization-aware service layer used by the internal enterprise controller. If variables were misused to store sensitive information such as credentials or tokens, they should be rotated immediately. This issue only affects licensed enterprise or team deployments with multiple projects and the variables feature enabled. This issue has been patched in versions 1.123.32, 2.17.4, and 2.18.1.
Severity
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/n8n-io/n8n/security/advisories… | x_refsource_CONFIRM |
Impacted products
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CVE-2026-42276 (GCVE-0-2026-42276)
Vulnerability from cvelistv5 – Published: 2026-05-08 03:49 – Updated: 2026-05-08 12:57
VLAI
Title
Onyx: IDOR in /chat/stop-chat-session allows any authenticated user to interrupt other users chat sessions
Summary
Onyx is an open-source AI platform. Prior to versions 3.0.9, 3.1.6, and 3.2.6, the POST /chat/stop-chat-session/{chat_session_id} endpoint lets any authenticated user stop any other user's active chat session. The endpoint checks authentication but never verifies the session belongs to the caller. An attacker who knows a chat session UUID can kill another user's LLM generation mid-stream. This issue has been patched in versions 3.0.9, 3.1.6, and 3.2.6.
Severity
4.3 (Medium)
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/onyx-dot-app/onyx/security/adv… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| onyx-dot-app | onyx |
Affected:
< 3.0.9
Affected: >= 3.1.0, < 3.1.6 Affected: >= 3.2.0, < 3.2.6 |
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CVE-2026-42277 (GCVE-0-2026-42277)
Vulnerability from cvelistv5 – Published: 2026-05-08 03:51 – Updated: 2026-05-08 21:28
VLAI
Title
Onyx: IDOR in /chat/file/{file_id} allows any authenticated user to download other users files
Summary
Onyx is an open-source AI platform. Prior to versions 3.0.9, 3.1.6, and 3.2.6, the GET /chat/file/{file_id} endpoint allows any authenticated user to download any other user's uploaded files by providing the file UUID. The endpoint verifies the caller is authenticated but never checks that the file belongs to them. An attacker who knows or obtains a file UUID can access confidential documents, chat attachments, and other files uploaded by any user in the system. This issue has been patched in versions 3.0.9, 3.1.6, and 3.2.6.
Severity
6.5 (Medium)
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/onyx-dot-app/onyx/security/adv… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| onyx-dot-app | onyx |
Affected:
< 3.0.9
Affected: >= 3.1.0, < 3.1.6 Affected: >= 3.2.0, < 3.2.6 |
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CVE-2026-42278 (GCVE-0-2026-42278)
Vulnerability from cvelistv5 – Published: 2026-05-08 03:55 – Updated: 2026-05-08 23:16
VLAI
Title
UltraDAG: Smart Account Spending Policy Bypass via Pockets
Summary
UltraDAG is a minimal DAG-BFT blockchain in Rust. Prior to commit fb6ef59, the UltraDAG StateEngine implementation of SmartTransferTx contains a critical logic flaw in its policy enforcement pipeline. When a transaction originates from a "Pocket" (a derived sub-address documented in the protocol as a way to organize funds), the engine fails to resolve the pocket's parent account before checking the spending policy. Because pockets are "virtual" addresses that exist only as entries in the pocket_to_parent map and do not have their own SmartAccountConfig entries, the check_spending_policy method defaults to an "authorized/no policy" result. This allow any user (or attacker in possession of a parent key) to instantly drain every pocket on an account, even if the parent account has a strict 24-hour vault delay or a 1 UDAG daily limit. This issue has been patched via commit fb6ef59.
Severity
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/UltraDAGcom/core/security/advi… | x_refsource_CONFIRM |
| https://github.com/UltraDAGcom/core/commit/fb6ef5… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| UltraDAGcom | core |
Affected:
< fb6ef59d6c1385400e7acea7ae31fc6a473c3051
|
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Mitigation
Phase: Architecture and Design
Description:
- For each and every data access, ensure that the user has sufficient privilege to access the record that is being requested.
Mitigation
Phases: Architecture and Design, Implementation
Description:
- Make sure that the key that is used in the lookup of a specific user's record is not controllable externally by the user or that any tampering can be detected.
Mitigation
Phase: Architecture and Design
Description:
- Use encryption in order to make it more difficult to guess other legitimate values of the key or associate a digital signature with the key so that the server can verify that there has been no tampering.
No CAPEC attack patterns related to this CWE.