Common Weakness Enumeration
CWE-639
AllowedAuthorization Bypass Through User-Controlled Key
Abstraction: Base · Status: Incomplete
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.
3213 vulnerabilities reference this CWE, most recent first.
CVE-2026-54322 (GCVE-0-2026-54322)
Vulnerability from cvelistv5 – Published: 2026-06-23 18:07 – Updated: 2026-06-23 18:56
VLAI
EPSS
VEX
Title
Daytona: Cross-org IDOR in organization role update/delete — any org owner can rewrite or destroy another org's roles
Summary
Daytona is a secure and elastic infrastructure runtime for AI-generated code execution and agent workflows. Prior to 0.185.0, Daytona's organization role update and delete endpoints authorized the caller as an owner of the organization named in the request path, but resolved and mutated the target role by its identifier alone, without verifying the role belonged to that organization. An authenticated user who owns any organization (organizations are self-service) could therefore modify the permissions of, or delete, a role belonging to a different organization, given that role's identifier. This vulnerability is fixed in 0.185.0.
Severity
7.7 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/daytonaio/daytona/security/adv… | x_refsource_CONFIRM |
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CVE-2026-54184 (GCVE-0-2026-54184)
Vulnerability from cvelistv5 – Published: 2026-06-17 09:51 – Updated: 2026-06-17 12:18
VLAI
EPSS
VEX
Title
WordPress Clean Login plugin <= 1.15 - Insecure Direct Object References (IDOR) vulnerability
Summary
Unauthenticated Insecure Direct Object References (IDOR) in Clean Login <= 1.15 versions.
Severity
8.2 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://patchstack.com/database/wordpress/plugin/… | vdb-entry |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Alberto Hornero | Clean Login |
Affected:
n/a , ≤ 1.15
(custom)
|
Credits
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CVE-2026-54105 (GCVE-0-2026-54105)
Vulnerability from cvelistv5 – Published: 2026-06-18 16:13 – Updated: 2026-06-24 19:54 Exclusively Hosted Service
VLAI
EPSS
VEX
Title
U.S. GAO EPDS and CBCA EDS user information disclosure
Summary
The U.S. Government Accountability Office (GAO) Electronic Protest Docketing System (EPDS) and Civilian Board of Contract Appeals (CBCA) Electronic Docketing System (EDS) expose sensitive account information through the 'update-profile/' API endpoint. A remote, unauthenticated attacker can submit a request containing an arbitrary 'user_id' parameter and receive a JSON response containing account-specific information, including the associated email address.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://raw.githubusercontent.com/cisagov/CSAF/de… | |
| https://www.cve.org/CVERecord?id=CVE-2026-54105 | vdb-entry |
| https://epds.gao.gov/ | product |
| https://www.eds.cbca.gov/login | product |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Government Accountability Office | Electronic Protest Docketing System (EPDS) |
Affected:
0 , < 2026-02-22
(custom)
Unaffected: 2026-02-22 |
|
| Civilian Board of Contract Appeals | Electronic Docketing System (EDS) |
Affected:
0 , < 2026-03-19
(custom)
Unaffected: 2026-03-19 |
Date Public
2026-06-18 00:00
Credits
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CVE-2026-54097 (GCVE-0-2026-54097)
Vulnerability from cvelistv5 – Published: 2026-06-25 17:40 – Updated: 2026-06-26 13:54
VLAI
EPSS
VEX
Title
File Browser: Cross-user unauthorized share-link deletion via unbounded prefix match in DeleteWithPathPrefix
Summary
File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to 2.63.6, a low-privileged authenticated user of filebrowser (with create + delete permissions in their own isolated scope) can silently destroy share-link records belonging to any other user — including the administrator — by performing a legitimate DELETE on a file in their own directory whose logical path happens to be a byte-prefix of another user's stored share.Link.Path. The file contents of the victim are not exposed, but the victim's share links are irrevocably wiped. This vulnerability is fixed in 2.63.6.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/filebrowser/filebrowser/securi… | x_refsource_CONFIRM |
| https://github.com/filebrowser/filebrowser/commit… | x_refsource_MISC |
| https://github.com/filebrowser/filebrowser/releas… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| filebrowser | filebrowser |
Affected:
< 2.63.6
|
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CVE-2026-54052 (GCVE-0-2026-54052)
Vulnerability from cvelistv5 – Published: 2026-07-15 20:34 – Updated: 2026-07-15 20:34
VLAI
EPSS
VEX
Title
n8n-MCP: Cross-tenant access to workflow version backups in multi-tenant HTTP deployments
Summary
n8n-MCP is an MCP server that provides AI assistants access to n8n node documentation, properties, and operations. Prior to 2.56.1, in HTTP mode with multi-tenancy enabled through ENABLE_MULTI_TENANT=true, n8n-mcp's local workflow version history backups were not isolated per tenant, allowing an authenticated tenant to read workflow version snapshots belonging to other tenants and delete or destroy other tenants' stored backups, including full node definitions, credential references, and authorization headers. This issue is fixed in version 2.56.1.
Severity
9.9 (Critical)
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/czlonkowski/n8n-mcp/security/a… | x_refsource_CONFIRM |
| https://github.com/czlonkowski/n8n-mcp/releases/t… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| czlonkowski | n8n-mcp |
Affected:
< 2.56.1
|
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CVE-2026-54016 (GCVE-0-2026-54016)
Vulnerability from cvelistv5 – Published: 2026-06-23 16:43 – Updated: 2026-06-23 17:39
VLAI
EPSS
VEX
Title
Open WebUI: Open WebUI BOLA: `search_knowledge_files` Allows Unauthorized Knowledge Base File Enumeration
Summary
Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.6, Open WebUI has a Broken Object Level Authorization (BOLA) vulnerability in the builtin search_knowledge_files tool. When native function calling is enabled and the selected model has no attached knowledge bases, an authenticated user can call search_knowledge_files with an arbitrary knowledge_id. The function then returns file metadata from that knowledge base without checking whether the user has read access. This allows unauthorized enumeration of private or restricted knowledge base files. This vulnerability is fixed in 0.9.6.
Severity
4.3 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/open-webui/open-webui/security… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| open-webui | open-webui |
Affected:
< 0.9.6
|
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CVE-2026-54015 (GCVE-0-2026-54015)
Vulnerability from cvelistv5 – Published: 2026-06-23 16:44 – Updated: 2026-06-24 14:20
VLAI
EPSS
VEX
Title
Open WebUI: Prompt history IDOR: unbound history_id allows cross-prompt read and deletion
Summary
Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.6, Open WebUI's prompt version-history endpoints authorize the prompt_id in the URL but then act on caller-supplied history IDs without verifying that the history row belongs to that prompt (history_entry.prompt_id == prompt.id). This affects /api/v1/prompts/id/{prompt_id}/history/diff, /api/v1/prompts/id/{prompt_id}/update/version, and /api/v1/prompts/id/{prompt_id}/history/{history_id}. An authenticated user with access to any prompt they control, plus a victim prompt_history.id, can read or delete another user's private prompt history. This vulnerability is fixed in 0.9.6.
Severity
6.4 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/open-webui/open-webui/security… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| open-webui | open-webui |
Affected:
< 0.9.6
|
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CVE-2026-54010 (GCVE-0-2026-54010)
Vulnerability from cvelistv5 – Published: 2026-06-23 16:48 – Updated: 2026-06-24 03:56
VLAI
EPSS
VEX
Title
Open WebUI: Forged chat-file link allows cross-user file read and deletion
Summary
Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.6, Open WebUI lets an authenticated user attach arbitrary file_id values to their own chat message without checking whether they own or can read those files. If the attacker then shares that chat and grants themselves read access, has_access_to_file() treats the victim file as accessible through the shared chat, and the file endpoints read or delete the victim file. This vulnerability is fixed in 0.9.6.
Severity
8.3 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/open-webui/open-webui/security… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| open-webui | open-webui |
Affected:
< 0.9.6
|
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CVE-2026-54009 (GCVE-0-2026-54009)
Vulnerability from cvelistv5 – Published: 2026-06-23 16:49 – Updated: 2026-06-24 14:22
VLAI
EPSS
VEX
Title
Open WebUI: Cross-user file disclosure via /api/chat/completions image_url field
Summary
Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.6, POST /api/chat/completions accepts an image_url.url value that, when it does NOT start with http://, https://, or data:image/, is interpreted as a file id and resolved against the global file table with no ownership check. an authenticated user can therefore set image_url.url to another user's file id, the server reads that file from disk, base64-encodes it, and injects the data URI into the LLM request. the user then prompts the LLM to describe / OCR the file and reads the content back. This vulnerability is fixed in 0.9.6.
Severity
6.5 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/open-webui/open-webui/security… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| open-webui | open-webui |
Affected:
< 0.9.6
|
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"title": "Open WebUI: Cross-user file disclosure via /api/chat/completions image_url field"
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CVE-2026-54006 (GCVE-0-2026-54006)
Vulnerability from cvelistv5 – Published: 2026-06-23 16:50 – Updated: 2026-06-23 17:52
VLAI
EPSS
VEX
Title
Open WebUI: Calendar event re-parenting allows writing events into another user's calendar
Summary
Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.6, POST /api/v1/calendars/events/{event_id}/update validates that the caller has write access to the calendar the event currently belongs to, but does not validate the destination calendar_id supplied in the request body. The model layer then persists the new calendar_id unconditionally. A regular user-role account can therefore create an event in their own calendar and immediately move it into any other user's calendar whose ID they know — bypassing the authorization check that create_event correctly performs. This vulnerability is fixed in 0.9.6.
Severity
4.3 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/open-webui/open-webui/security… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| open-webui | open-webui |
Affected:
< 0.9.6
|
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"metrics": [
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Mitigation
Architecture and Design
For each and every data access, ensure that the user has sufficient privilege to access the record that is being requested.
Mitigation
Architecture and Design
Implementation
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
Architecture and Design
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.