Common Weakness Enumeration

CWE-639

Allowed

Authorization Bypass Through User-Controlled Key

Abstraction: Base · Status: Incomplete

API response cwe.mitre.org

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.

2788 vulnerabilities reference this CWE, most recent first.

CVE-2026-109837 (GCVE-0-2026-109837)

Vulnerability from cvelistv5 – Published: 2026-11-05 13:38 – Updated: 2026-11-10 16:24
VLAI
Title
Apache OFBiz: Authorization Bypass Through User-Controlled Key in Order Returns Enables Cross-Party OrderItem Association
Summary
Authorization Bypass Through User-Controlled Key in Order Returns in Apache OFBiz 24.09 before 24.09.08 on all platforms allows an authenticated user with low-privileged Order Manager access to associate another party's OrderItem with a ReturnItem on a ReturnHeader they control, via the createReturnItem service. Users are recommended to upgrade to version 24.09.08, which fixes this issue.
Severity
5.4 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-10 16:24 UTC
CWE
  • CWE-639 - Authorization bypass through User-Controlled key
Assigner
apache CNA
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache OFBiz Affected: 0 , < 24.09.08 (semver)
Create a notification for this product.
Credits
Omar Mousa — Red Team & Security Researcher, LinkedIn: https://www.linkedin.com/in/omar-mousa15
Show details on NVD website
To clipboard 

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CVE-2026-109801 (GCVE-0-2026-109801)

Vulnerability from cvelistv5 – Published: 2026-11-10 00:38 – Updated: 2026-11-10 20:35
VLAI
Title
Security Vulnerabilities SAP NetWeaver Application Server Java (NWDI Cockpit)
Summary
SAP NetWeaver Application Server Java (NWDI Cockpit)� does not perform sufficient authorization checks for certain functionality that retrieves sensitive information. An attacker with low privileges could send a specially crafted request to access sensitive information belonging to other system users. Successful exploitation results in a high impact on confidentiality, with no impact on integrity or availability of the application.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-10 20:35 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
sap CNA
References
Impacted products
Show details on NVD website
To clipboard 

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CVE-2026-109675 (GCVE-0-2026-109675)

Vulnerability from cvelistv5 – Published: 2026-10-12 22:22 – Updated: 2026-10-18 12:23
VLAI
Title
Frappe Suite before commit 2697564 Broken Access Control in Mail Mailbox and Quota APIs
Summary
Frappe Suite before commit 2697564a9c46da6acc614743eaf9915fe5238f4f contains a broken access control vulnerability in the get_mailboxes and get_quota APIs that allows authenticated mail users to access other users' data. Attackers can supply another user's JMAP account ID to read mailbox names, message counts, automation rules with sender addresses, and storage quota usage.
Severity
5.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
4.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-18 12:06 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
VulnCheck CNA
References
Impacted products
Vendor Product Version
frappe suite Affected: 0 , < 2697564a9c46da6acc614743eaf9915fe5238f4f (git)
Unaffected: 2697564a9c46da6acc614743eaf9915fe5238f4f (git)
Create a notification for this product.
Date Public
2026-09-17 00:00
Credits
Darshan060224
Show details on NVD website
To clipboard 

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CVE-2026-109568 (GCVE-0-2026-109568)

Vulnerability from cvelistv5 – Published: 2026-10-12 20:55 – Updated: 2026-10-13 17:47
VLAI
Title
Shaark 1.2.13 through 1.2.44 Missing Authorization via API Update and Delete Routes
Summary
Shaark 1.2.13 through 1.2.44 contains a missing authorization vulnerability in the Link, Story, Chest and Album API controllers that skips ownership checks. Authenticated non-admin users can send PUT or DELETE requests to /api/{link,story,chest,album}/{id} with numeric IDs to overwrite or delete other users' content, including private items.
Severity
7.1 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N
7.1 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 17:47 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
VulnCheck CNA
References
Impacted products
Vendor Product Version
MarceauKa Shaark Affected: 1.2.13 , ≤ 1.2.44 (semver)
Create a notification for this product.
Date Public
2026-05-18 00:00
Credits
ismail özdoğan saaa99999999
Show details on NVD website
To clipboard 

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CVE-2026-109492 (GCVE-0-2026-109492)

Vulnerability from cvelistv5 – Published: 2026-11-10 18:15 – Updated: 2026-11-10 20:50
VLAI
Title
Microsoft MCP Gateway Elevation of Privilege Vulnerability
Summary
Authorization bypass through user-controlled key in Microsoft MCP Gateway allows an authorized attacker to elevate privileges over a network.
Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-10 20:47 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
microsoft CNA
References
Impacted products
Vendor Product Version
Microsoft mcp-gateway Affected: 1.0.0.0 , < 1.0.0 (custom)
    cpe:2.3:a:microsoft:mcp_gateway:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-11-10 16:00
Show details on NVD website
To clipboard 

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CVE-2026-109469 (GCVE-0-2026-109469)

Vulnerability from cvelistv5 – Published: 2026-11-06 23:06 – Updated: 2026-11-06 23:06 Exclusively Hosted Service
VLAI
Title
Entra Device Registration Elevation of Privilege Vulnerability
Summary
Authorization bypass through user-controlled key in Entra Device Registration allows an unauthorized attacker to elevate privileges over a network.
Severity
10 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
microsoft CNA
References
Impacted products
Vendor Product Version
Microsoft Entra Device Registration Affected: -
    cpe:2.3:a:microsoft:entra_device_registration:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-11-05 16:00
Show details on NVD website
To clipboard 

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CVE-2026-109431 (GCVE-0-2026-109431)

Vulnerability from cvelistv5 – Published: 2026-10-19 15:06 – Updated: 2026-10-27 16:16
VLAI
Title
Camunda Missing Authorization in Task Sub-Resources
Summary
Camunda 7.24.0 before 7.24.14 and 7.23.0 before 7.23.17 contains a missing authorization check vulnerability in engine-rest task sub-resources that allows authenticated attackers with no permission grants to access task comments and attachments by calling singular read and delete endpoints that lack the authorization-filtered checks enforced on their corresponding list endpoints. Using only a known object ID, attackers can exploit TaskAttachmentResourceImpl and TaskCommentResourceImpl methods such as getAttachment, getAttachmentData, deleteAttachment, and getComment to read or download task attachments and comments and to permanently delete task attachments.
Severity
8.6 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
8.1 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-19 17:41 UTC
CWE
  • CWE-862 - Missing Authorization
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
VulnCheck CNA
References
Impacted products
Vendor Product Version
Camunda Camunda 7 Affected: 7.24.0 , < 7.24.14 (semver)
Affected: 7.23.0 , < 7.23.17 (semver)
Create a notification for this product.
Date Public
2026-08-31 00:00
Credits
CodeAnt AI Security Research Team
Show details on NVD website
To clipboard 

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CVE-2026-109427 (GCVE-0-2026-109427)

Vulnerability from cvelistv5 – Published: 2026-10-12 20:35 – Updated: 2026-10-26 20:33 X_Open Source
VLAI
Title
Telegram-Stremio 5.1.0 Broken Object Authorization via Stream IDs
Summary
Telegram-Stremio through 5.1.0 contains a broken object-level authorization vulnerability that allows authenticated token holders to access arbitrary chat messages by forging unsigned, unauthenticated stream IDs decoded via encode_string/decode_string functions. Attackers can craft or enumerate sequential msg_id values and set a global flag in the stream_handler endpoint to route requests through the operator's personal Userbot account, exposing private channels, groups, and Saved Messages, while the unauthenticated thumb_handler endpoint further discloses thumbnails from those same chats without any token validation.
Severity
7.1 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-26 20:33 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
  • CWE-862 - Missing Authorization
Assigner
VulnCheck CNA
References
Impacted products
Vendor Product Version
weebzone Telegram-Stremio Affected: 0 , ≤ 5.1.0 (semver)
Create a notification for this product.
Date Public
2026-10-02 00:00
Credits
Mansurzhan Mavlankulov
Show details on NVD website
To clipboard 

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CVE-2026-109394 (GCVE-0-2026-109394)

Vulnerability from cvelistv5 – Published: 2026-10-12 15:16 – Updated: 2026-10-15 02:25
VLAI
Title
Thirty bees through 1.7.0 Account Takeover via PasswordController Guest Checkout
Summary
Thirty bees through 1.7.0 contains an authentication bypass vulnerability in PasswordController::resolveCustomer() that allows unauthenticated attackers to reset registered customers' passwords using guest account tokens. Attackers can place a guest order with the victim's email, then use the guest secure key to reset and take over the victim's account when guest checkout is enabled.
Severity
9.1 (Critical)
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
7.4 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-15 02:25 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
VulnCheck CNA
References
Impacted products
Vendor Product Version
thirty bees thirty bees Affected: 0 , ≤ 1.7.0 (semver)
    cpe:2.3:a:thirtybees:thirty_bees:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-09-09 06:52
Credits
leediay153 from Viettel Post
Show details on NVD website
To clipboard 

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CVE-2026-109393 (GCVE-0-2026-109393)

Vulnerability from cvelistv5 – Published: 2026-10-12 15:16 – Updated: 2026-10-18 12:03
VLAI
Title
QloApps through 1.7.0 Insecure Direct Object Reference in Back-Office AJAX Handlers
Summary
QloApps through 1.7.0 contains an insecure direct object reference vulnerability in back-office AJAX handlers of AdminOrdersController, AdminBookingDocumentController, AdminProductsController and AdminAddHotelController that skip htl_access hotel checks. Hotel-restricted employees can supply other hotels' sequential identifiers to read, upload and delete booking documents and delete rooms, room images and hotel images.
Severity
5.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
6.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-18 11:46 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
VulnCheck CNA
References
Impacted products
Vendor Product Version
Webkul QloApps Affected: 0 , ≤ 1.7.0 (semver)
    cpe:2.3:a:webkul:qloapps:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-10-07 11:18
Credits
leediay153 from Viettel Post
Show details on NVD website
To clipboard 

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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.

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