GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration
Common Weakness Enumeration

CWE-863

Allowed-with-Review

Incorrect Authorization

Abstraction: Class · Status: Incomplete

API response cwe.mitre.org

The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.

6543 vulnerabilities reference this CWE, most recent first.

CVE-2026-88005 (GCVE-0-2026-88005)

Vulnerability from cvelistv5 – Published: 2026-09-10 14:38 – Updated: 2026-09-10 14:38
VLAI
Title
Open WebUI: Users denied by the OAuth domain allowlist or role policy can still sign in via token exchange
Summary
Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.8.0 until 0.9.0, Open WebUI's OAuth token exchange endpoint issues a session for a provider access token without applying the email domain allowlist that the normal OAuth login callback enforces. An account whose email domain the login callback would refuse could still obtain a working session through this endpoint. This issue is fixed in version 0.9.0.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
CWE
  • CWE-863 - Incorrect Authorization
Assigner
References
Impacted products
Vendor Product Version
open-webui open-webui Affected: >= 0.8.0, < 0.9.0
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-87998 (GCVE-0-2026-87998)

Vulnerability from cvelistv5 – Published: 2026-09-09 21:31 – Updated: 2026-09-10 17:48
VLAI
Title
Open WebUI: Non-admin users can delete admin-owned external knowledge connections via knowledge base deletion
Summary
Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.10.0 until 0.11.1, DELETE /api/v1/knowledge/{id}/delete in backend/open_webui/routers/knowledge.py authorized deletion against the knowledge base but then removed its administrator-owned external connection without a separate administrator check or a check for other dependent knowledge bases. A non-administrator with write access to one external knowledge base could delete shared instance configuration and make every other knowledge base using that connection unavailable. This issue is fixed in version 0.11.1.
Severity
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 2026-09-10 17:28 UTC
CWE
  • CWE-269 - Improper Privilege Management
  • CWE-863 - Incorrect Authorization
Assigner
References
Impacted products
Vendor Product Version
open-webui open-webui Affected: >= 0.10.0, < 0.11.1
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-87107 (GCVE-0-2026-87107)

Vulnerability from cvelistv5 – Published: 2026-09-10 18:57 – Updated: 2026-09-10 19:22
VLAI
Title
Consul vulnerable to an authorization bypass in the catalog deregistration path
Summary
Consul and Consul Enterprise are vulnerable to an authorization bypass in the catalog deregistration path that may allow a local ACL token to delete peer-imported catalog objects. A caller with {{service:write}} or {{node:write}} permission may exploit this issue to remove services, checks, or nodes imported from a peered cluster without holding authority over the peer origin. This vulnerability (CVE-2026-87107) is fixed in Consul 2.0.4 and Consul Enterprise 1.21.18, 1.22.12 and 2.0.4.
Severity
5.4 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-10 19:21 UTC
CWE
  • CWE-863 - Incorrect Authorization
Assigner
References
Impacted products
Vendor Product Version
HashiCorp Consul Affected: 1.21.0 , < 2.0.4 (semver)
Create a notification for this product.
HashiCorp Consul Enterprise Affected: 1.21.0 , < 2.0.4 (semver)
Create a notification for this product.
Credits
This issue was reported to HashiCorp by Yazdan Soltani.
Show details on NVD website
To clipboard 

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CVE-2026-87090 (GCVE-0-2026-87090)

Vulnerability from cvelistv5 – Published: 2026-09-10 18:54 – Updated: 2026-09-10 19:02
VLAI
Title
Consul vulnerable to an authorization bypass in the catalog node-write path
Summary
Consul and Consul Enterprise are vulnerable to an authorization bypass in the catalog node-write path that may allow an authenticated attacker to delete another node's catalog registration and take over its node identity. An attacker with a token granting node-write permission on any single node name may exploit this issue if they can obtain the node ID of a node they do not control. This vulnerability (CVE-2026-87090) is fixed in Consul 2.0.4 and Consul Enterprise 1.21.18, 1.22.12 and 2.0.4.
Severity
8.3 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-10 19:02 UTC
CWE
  • CWE-863 - Incorrect Authorization
Assigner
References
Impacted products
Vendor Product Version
HashiCorp Consul Affected: 0.1.0 , < 2.0.4 (semver)
Create a notification for this product.
HashiCorp Consul Enterprise Affected: 0.1.0 , < 2.0.4 (semver)
Create a notification for this product.
Credits
This issue was reported to HashiCorp by Raphael Zanarelli.
Show details on NVD website
To clipboard 

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CVE-2026-87075 (GCVE-0-2026-87075)

Vulnerability from cvelistv5 – Published: 2026-09-09 02:06 – Updated: 2026-09-09 16:10
VLAI
Title
Tanium addressed an improper access controls vulnerability in Comply.
Summary
Tanium addressed an improper access controls vulnerability in Comply.
Severity
8.1 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-09 16:01 UTC
CWE
  • CWE-863 - Incorrect Authorization
Assigner
References
Impacted products
Vendor Product Version
Tanium Comply Affected: 2.32 , < 2.32.252 (custom)
Affected: 2.35 , < 2.35.306 (custom)
Affected: 2.37 , < 2.37.308 (custom)
Create a notification for this product.
Date Public
2026-09-09 02:04
Show details on NVD website
To clipboard 

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CVE-2026-87046 (GCVE-0-2026-87046)

Vulnerability from cvelistv5 – Published: 2026-09-09 02:07 – Updated: 2026-09-09 16:10
VLAI
Title
Tanium addressed an improper access controls vulnerability in Comply.
Summary
Tanium addressed an improper access controls vulnerability in Comply.
Severity
4.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-09 16:00 UTC
CWE
  • CWE-863 - Incorrect Authorization
Assigner
References
Impacted products
Vendor Product Version
Tanium Comply Affected: 2.32 , < 2.32.252 (custom)
Affected: 2.35 , < 2.35.306 (custom)
Affected: 2.37 , < 2.37.308 (custom)
Create a notification for this product.
Date Public
2026-09-09 02:04
Show details on NVD website
To clipboard 

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CVE-2026-87017 (GCVE-0-2026-87017)

Vulnerability from cvelistv5 – Published: 2026-09-09 21:23 – Updated: 2026-09-10 17:48
VLAI
Title
Open WebUI: Inaccessible knowledge bases are exposed through the built-in knowledge tool on most vector backends
Summary
Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.7.0 until 0.11.1, the built-in knowledge search tool passed the caller's readable knowledge identifiers through a metadata filter, but the search methods in eleven shipped vector backends ignored that filter. An authenticated user on an affected backend could enumerate the identifiers, names, and descriptions of inaccessible knowledge bases from the shared collection, although the associated document text remained in separate collections. This issue is fixed in version 0.11.1.
Severity
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 2026-09-10 17:28 UTC
CWE
  • CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
  • CWE-863 - Incorrect Authorization
Assigner
References
Impacted products
Vendor Product Version
open-webui open-webui Affected: >= 0.7.0, < 0.11.1
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-87014 (GCVE-0-2026-87014)

Vulnerability from cvelistv5 – Published: 2026-09-09 21:01 – Updated: 2026-09-10 17:57
VLAI
Title
Open WebUI: Admin demoted through SSO role sync keeps read and write access to all users' notes
Summary
Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.0 until 0.11.1, role synchronization in backend/open_webui/routers/auths.py and backend/open_webui/utils/oauth.py updated an administrator's database role without invalidating the user record cached by backend/open_webui/socket/main.py. An administrator demoted through a trusted role header or OAuth role mapping could keep an already-open Socket.IO connection and continue reading or editing every user's collaborative notes until that connection closed. This issue is fixed in version 0.11.1.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:H/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 2026-09-10 17:56 UTC
CWE
  • CWE-613 - Insufficient Session Expiration
  • CWE-863 - Incorrect Authorization
Assigner
References
Impacted products
Vendor Product Version
open-webui open-webui Affected: >= 0.9.0, < 0.11.1
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-86773 (GCVE-0-2026-86773)

Vulnerability from cvelistv5 – Published: 2026-09-09 13:32 – Updated: 2026-09-09 14:32
VLAI
Title
Snipe-IT 8.6.3 Broken Access Control via Kit Update Endpoints
Summary
Snipe-IT through version 8.6.3 fails to perform object-level authorization in the updateLicense, updateConsumable, updateAccessory, and updateModel endpoints and in the storeModel endpoint for Predefined Kits. The existing check authorizes only the parent Predefined Kit (update on PredefinedKit) and not the child object being attached. As a result, an authenticated user holding only the kits.edit permission can attach a License, Consumable, Accessory, or Asset Model that they are otherwise denied (HTTP 403) from reading directly to a Predefined Kit, and the kit relation index then discloses the attached object's name back to that low-privilege user. This is the update-path and storeModel counterpart to CVE-2026-55478, which fixed only the storeLicense, storeConsumable, and storeAccessory methods in 8.6.2. Note that updateModel was code-vulnerable in 8.6.3 but not reachable in practice because a route-name typo bound the route to a nonexistent controller method, causing HTTP 500 responses. The issue is fixed in Snipe-IT 8.7.0.
Severity
5.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
5.4 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-09 14:32 UTC
CWE
  • CWE-863 - Incorrect Authorization
Assigner
References
Impacted products
Vendor Product Version
grokability snipe-it Affected: 8.6.3 , < 8.7.0 (semver)
Unaffected: 8.7.0 (semver)
    cpe:2.3:a:snipeitapp:snipe-it:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-08-24 00:00
Credits
boboboboo
Show details on NVD website
To clipboard 

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CVE-2026-86760 (GCVE-0-2026-86760)

Vulnerability from cvelistv5 – Published: 2026-09-09 13:32 – Updated: 2026-09-09 13:32
VLAI
Title
snipe-it 8.2.0 before 8.7.0 Authentication Bypass via activated flag
Summary
Snipe-IT versions 8.2.0 through 8.6.x (fixed in 8.7.0) contain an incorrect authorization flaw in app/Http/Controllers/Users/UsersController::update(). The single-user edit route assigned the activated field from the request payload before evaluating the canEditAuthFields authorization gate, so an authenticated non-admin user holding the users.edit permission in the target's company scope can submit a full valid PUT request to /users/{id} and toggle the activated flag on any user, including admin and superuser accounts. Deactivating an admin locks that account out of the application until another admin or superuser re-enables it. Only the activated field is affected; username, email, password and permissions remain protected by the gate, no data is disclosed, and the API (Api\UsersController::update) and bulk-edit paths are not affected.
Severity
5.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
5.4 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
CWE
  • CWE-863 - Incorrect Authorization
Assigner
References
Impacted products
Vendor Product Version
grokability snipe-it Affected: 8.2.0 , < 8.7.0 (semver)
Unaffected: 8.7.0 (semver)
    cpe:2.3:a:snipeitapp:snipe-it:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-08-24 00:00
Credits
m0xath Vectrain51
Show details on NVD website
To clipboard 

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Mitigation
Architecture and Design
  • Divide the product into anonymous, normal, privileged, and administrative areas. Reduce the attack surface by carefully mapping roles with data and functionality. Use role-based access control (RBAC) [REF-229] to enforce the roles at the appropriate boundaries.
  • Note that this approach may not protect against horizontal authorization, i.e., it will not protect a user from attacking others with the same role.
Mitigation
Architecture and Design

Ensure that access control checks are performed related to the business logic. These checks may be different than the access control checks that are applied to more generic resources such as files, connections, processes, memory, and database records. For example, a database may restrict access for medical records to a specific database user, but each record might only be intended to be accessible to the patient and the patient's doctor [REF-7].

Mitigation MIT-4.4
Architecture and Design

Strategy: Libraries or Frameworks

  • Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
  • For example, consider using authorization frameworks such as the JAAS Authorization Framework [REF-233] and the OWASP ESAPI Access Control feature [REF-45].
Mitigation
Architecture and Design
  • For web applications, make sure that the access control mechanism is enforced correctly at the server side on every page. Users should not be able to access any unauthorized functionality or information by simply requesting direct access to that page.
  • One way to do this is to ensure that all pages containing sensitive information are not cached, and that all such pages restrict access to requests that are accompanied by an active and authenticated session token associated with a user who has the required permissions to access that page.
Mitigation
System Configuration Installation

Use the access control capabilities of your operating system and server environment and define your access control lists accordingly. Use a "default deny" policy when defining these ACLs.

No CAPEC attack patterns related to this CWE.

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