Common Weakness Enumeration

CWE-863

Allowed-with-Review

Incorrect Authorization

Abstraction: Class · Status: Incomplete

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.

6872 vulnerabilities reference this CWE, most recent first.

CVE-2026-55188 (GCVE-0-2026-55188)

Vulnerability from cvelistv5 – Published: 2026-06-26 20:03 – Updated: 2026-06-27 03:11
VLAI
Title
RustFS: ListRemoteTargetHandler authorization bypass leaks replication target credentials
Summary
RustFS is a distributed object storage system built in Rust. From 1.0.0-alpha.1 until 1.0.0-beta.9, RustFS contains an authorization bypass in the bucket replication admin API. The ListRemoteTargetHandler handler for listing remote replication targets only checks whether request credentials exist, but does not verify that the caller has replication or administrator permissions. As a result, an authenticated user with no effective bucket or admin permissions can list remote replication target configuration for a bucket. Because the returned BucketTarget objects include remote target credentials, this can disclose replication access keys and secret keys. This vulnerability is fixed in 1.0.0-beta.9.
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-27 03:08 UTC
CWE
  • CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
  • CWE-522 - Insufficiently Protected Credentials
  • CWE-862 - Missing Authorization
  • CWE-863 - Incorrect Authorization
References
Impacted products
Vendor Product Version
rustfs rustfs Affected: >= 1.0.0-alpha.1, <= 1.0.0-beta.8
Create a notification for this product.
Show details on NVD website

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CVE-2026-55163 (GCVE-0-2026-55163)

Vulnerability from cvelistv5 – Published: 2026-08-18 18:50 – Updated: 2026-08-19 18:21
VLAI
Title
Lemur: Privilege escalation via PUT /api/1/roles/<id> — non-admin role members can rewrite role membership
Summary
Lemur manages TLS certificate creation. Prior to 1.9.2, PUT /api/1/roles/ in lemur/roles/views.py:298 authorized updates with RoleMemberPermission(role_id), which allowed either an administrator or any existing member of the target role. The handler passed data["users"] and data["name"] to service.update, allowing a non-admin member to add or remove other users and rename the role. This enabled lateral privilege grants within roles that control certificate and authority access and could deny access by removing legitimate members. The DELETE handler already required admin_permission, confirming that the weaker PUT authorization was inconsistent. The fix applies the same administrator-only requirement to the PUT handler. This issue is fixed in version 1.9.2.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-19 18:04 UTC
CWE
  • CWE-863 - Incorrect Authorization
Impacted products
Vendor Product Version
Netflix lemur Affected: < 1.9.2
Create a notification for this product.
Show details on NVD website

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CVE-2026-55089 (GCVE-0-2026-55089)

Vulnerability from cvelistv5 – Published: 2026-08-19 19:33 – Updated: 2026-08-19 19:48
VLAI
Title
Etherpad: JWT `admin` claim presence-only check lets non-admin OAuth users invoke every Etherpad HTTP API endpoint
Summary
Etherpad is a real-time collaborative editor. From 2.1.0 until 3.1.0, Etherpad's src/node/handler/APIHandler.ts authorizes requests to /api/2/* in the authorization_code OAuth path by using requiredClaims with the admin claim. This check requires only that the claim exists, while src/node/security/OAuth2Provider.ts issues admin: false for configured non-admin users. A non-admin user with a valid signed token can therefore invoke administrative functions including setHTML, setText, appendText, deletePad, copyPad, movePad, restoreRevision, anonymizeAuthor, listAllPads, and listAuthorsOfPad, allowing disclosure, modification, or deletion of pads across the instance. This issue is fixed in version 3.1.0.
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-19 19:48 UTC
CWE
  • CWE-863 - Incorrect Authorization
Impacted products
Vendor Product Version
ether etherpad Affected: >= 2.1.0, < 3.1.0
Create a notification for this product.
Show details on NVD website

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CVE-2026-55060 (GCVE-0-2026-55060)

Vulnerability from cvelistv5 – Published: 2026-09-21 14:58 – Updated: 2026-09-21 20:46
VLAI
Title
GoCD is vulnerable to authorization bypass via support process list API
Summary
GoCD is a continuous deliver server. From 13.1.0 until 26.1.0, the /go/api/support/process_list endpoint does not enforce its intended administrator-only authorization. An authenticated internal user can query the endpoint while source control child processes are running and view command-line arguments, usernames, remote material URLs, and internal material paths for materials the user cannot otherwise access. Exploitation depends on unpredictable process timing, and credentials, environment variables, and user-defined secrets remain masked or omitted. This issue is fixed in version 26.1.0.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-21 19:40 UTC
CWE
  • CWE-863 - Incorrect Authorization
Impacted products
Vendor Product Version
gocd gocd Affected: >= 13.1.0, < 26.1.0
Create a notification for this product.
Show details on NVD website

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CVE-2026-54998 (GCVE-0-2026-54998)

Vulnerability from cvelistv5 – Published: 2026-07-02 22:18 – Updated: 2026-09-25 18:19 Exclusively Hosted Service
VLAI
Title
Microsoft Exchange Online Elevation of Privilege Vulnerability
Summary
Incorrect authorization in Microsoft Exchange Online allows an authorized attacker to elevate privileges over a network.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-06 00:00 UTC
CWE
  • CWE-863 - Incorrect Authorization
References
Impacted products
Vendor Product Version
Microsoft Microsoft Exchange Online Affected: -
    cpe:2.3:a:microsoft:exchange_online:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-07-02 14:00
Show details on NVD website

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CVE-2026-54803 (GCVE-0-2026-54803)

Vulnerability from cvelistv5 – Published: 2026-06-17 09:51 – Updated: 2026-06-17 14:48
VLAI
Title
WordPress SMS Alert Order Notifications plugin <= 3.9.4 - Privilege Escalation vulnerability
Summary
Subscriber Privilege Escalation in SMS Alert Order Notifications <= 3.9.4 versions.
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-17 14:48 UTC
CWE
  • CWE-863 - Incorrect Authorization
References
Impacted products
Show details on NVD website

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CVE-2026-54766 (GCVE-0-2026-54766)

Vulnerability from cvelistv5 – Published: 2026-08-28 16:36 – Updated: 2026-08-28 19:59
VLAI
Title
Vikunja: Project duplication bypasses write-permission check on the target parent project
Summary
Vikunja is an open-source self-hosted task management platform. From 0.21.0 until 2.4.0, the project duplication operation in pkg/models/project_duplicate.go allows an authenticated user who can read a source project to place its duplicate beneath an arbitrary target parent project. ProjectDuplicate.CanCreate calls parent.CanCreate on an unhydrated Project containing only the body supplied parent_project_id instead of calling parent.CanWrite, so the target parent write-permission check is skipped. The ordinary project creation path enforces that permission, but PUT /api/v1/projects/{project}/duplicate does not, allowing attacker-owned content to be injected into another user or team project hierarchy. This issue is fixed in version 2.4.0.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-28 19:59 UTC
CWE
Impacted products
Vendor Product Version
go-vikunja vikunja Affected: >= 0.21.0, < 2.4.0
Create a notification for this product.
Show details on NVD website

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CVE-2026-54765 (GCVE-0-2026-54765)

Vulnerability from cvelistv5 – Published: 2026-07-06 20:27 – Updated: 2026-07-07 14:19
VLAI
Title
Traefik: Gateway HTTPRoute backendRef filters can leak backend context across routes sharing a Service:port
Summary
Traefik is an open source HTTP reverse proxy and load balancer. From v3.7.0 prior to v3.7.6, Traefik's Kubernetes Gateway API provider may resolve two accepted HTTPRoutes that target the same backend Service:port but configure different backendRef filters to the same child service and apply only one route's filter set to all requests reaching that backend. In Gateway deployments where backendRef filters set security-sensitive headers, such as tenant identity, authorization context, or values the backend trusts, an attacker who can create an accepted HTTPRoute sharing the same backend Service:port may cause their route's filter context to be applied to another route's requests, potentially crossing namespace boundaries when a ReferenceGrant permits cross-namespace targeting. This issue is fixed in version v3.7.6.
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-07 14:18 UTC
CWE
Impacted products
Vendor Product Version
traefik traefik Affected: >= 3.7.0, < 3.7.6
Create a notification for this product.
Show details on NVD website

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CVE-2026-54761 (GCVE-0-2026-54761)

Vulnerability from cvelistv5 – Published: 2026-06-23 19:15 – Updated: 2026-06-25 12:45
VLAI
Title
Traefik: Kubernetes Gateway crossProviderNamespaces bypass allows HTTPRoute outside the allowlist to expose internal Traefik services
Summary
Traefik is an HTTP reverse proxy and load balancer. Prior to 3.6.21 and 3.7.5, there is a high severity vulnerability in Traefik's Kubernetes Gateway provider affecting the crossProviderNamespaces allowlist. For HTTPRoute rules that declare multiple (WRR) backendRefs, Traefik evaluates the allowlist against the target backendRef.namespace instead of the route's own namespace. As a result, an HTTPRoute created in a namespace that is not allow-listed can reference a cross-provider TraefikService such as api@internal, dashboard@internal or rest@internal by pointing backendRef.namespace at an allow-listed namespace covered by a Gateway API ReferenceGrant, exposing internal Traefik services on the data plane. Exploitation requires the ability to create an accepted HTTPRoute and a matching ReferenceGrant from an allow-listed namespace; it does not require any change to Traefik static configuration, RBAC, or the deployment itself. This vulnerability is fixed in 3.6.21 and 3.7.5.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-25 12:45 UTC
CWE
Impacted products
Vendor Product Version
traefik traefik Affected: < 3.6.21
Affected: >= 3.7.0-ea.1, < 3.7.5
Create a notification for this product.
Show details on NVD website

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CVE-2026-54742 (GCVE-0-2026-54742)

Vulnerability from cvelistv5 – Published: 2026-08-19 20:10 – Updated: 2026-08-20 20:01
VLAI
Title
Lemmy: `CollectionAdd::Featured` does not check the post is in the community
Summary
Lemmy is a link aggregator and forum for the fediverse. From 0.19.18 until 0.19.19 and 1.0.0-alpha.20, a community moderator can feature or unfeature posts in other communities through federated CollectionAdd and CollectionRemove activities using CollectionType::Featured. After verify_mod_action authorizes the actor against self.community(), the receive handlers in crates/apub/activities/src/community/collection_add.rs and crates/apub/activities/src/community/collection_remove.rs dereference self.object as an ApubPost and update featured_community without verifying that post.community_id equals community.id. A moderator can therefore target an unrelated post owned by another community, push it into featured feeds and listings, or undo another community's legitimate curation decision. This issue is fixed in versions 0.19.19 and 1.0.0-alpha.20.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-20 20:01 UTC
CWE
  • CWE-863 - Incorrect Authorization
Impacted products
Vendor Product Version
LemmyNet lemmy Affected: < 0.19.19
Affected: >= 1.0.0-alpha.0, < 1.0.0-alpha.20
Create a notification for this product.
Show details on NVD website

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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.