Weakness (CWE)
CWE-863: Incorrect Authorization
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.
How to prevent it (5 mitigations)
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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.
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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].
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Architecture and Design
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].
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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.
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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.
Source: MITRE CWE-863
369 results · Clear filters · Feed
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Critical 9.6
Moquette pattern ACL wildcard injection allows cross-tenant authorization bypass
Moquette is a lightweight Java MQTT broker. Prior to 0.18.1, when pattern-based ACL rules are configured, AuthorizationsCollector.canDoOperation substitutes client ID and username values directly into rules containing %c or %u and then treats the result as an…
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Critical 10.0
Adobe Experience Manager Forms JEE | Incorrect Authorization (CWE-863)
Adobe Experience Manager Forms JEE is affected by an Incorrect Authorization vulnerability that could result in arbitrary code execution in the context of the current user. An attacker could exploit this vulnerability to execute arbitrary code. Exploitation o…
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Critical 10.0
Adobe Campaign Classic (ACC) | Incorrect Authorization (CWE-863)
Adobe Campaign Classic (ACC) is affected by an Incorrect Authorization vulnerability that could result in arbitrary code execution in the context of the current user. An attacker could exploit this vulnerability to execute arbitrary code. Exploitation of this…
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Critical 9.1
Adobe Campaign Classic (ACC) | Incorrect Authorization (CWE-863)
Adobe Campaign Classic (ACC) is affected by an Incorrect Authorization vulnerability that could result in arbitrary code execution in the context of the current user. An attacker could exploit this vulnerability to execute arbitrary code. Exploitation of this…
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Critical 9.9
vm2 before 3.11.7 Module Allowlist Bypass via Custom Resolver
vm2 before 3.11.7 contains an incorrect authorization vulnerability in the external package allowlist check that uses non-exact substring matching instead of full package-name boundary validation. Attackers can bypass the allowlist by requiring a colliding pa…
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Critical 9.9
Casdoor through 4.4.0 Cross-Organization User Administration via /api/mcp
Casdoor through 4.4.0 contains an authorization bypass vulnerability in the /api/mcp endpoint that allows attackers with any application's clientId and clientSecret to gain unrestricted access to user administration across all organizations. Attackers can enu…
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Critical 9.8
SmartAdmin v3.30.0 contains an authorization flaw in the configuration query endpoint. This allows a remote attacker to…
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Critical 9.6
Casdoor through 4.4.0 Private Key Exposure via Certificate Endpoints
Casdoor through 4.4.0 fails to properly mask the instance-wide built-in certificate private key in /api/get-certs and /api/get-cert endpoints, allowing organization administrators to retrieve it. Attackers can use the exposed private key to forge JWT tokens f…
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Critical 9.8
PraisonAI: Unauthenticated RCE via Jobs API + Approval Bypass
PraisonAI is a multi-agent teams system. Prior to praisonai 4.6.59 and praisonaiagents 1.6.59, the unauthenticated POST /api/v1/runs Jobs API accepts attacker-controlled agent_yaml, and the approve field can mark execute_command as YAML-approved before @requi…
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Critical 9.8
Apache Storm Client: Authorization Bypass When nimbus.groups Is Configured Without nimbus.users
Description `SimpleACLAuthorizer` evaluated the user-level command set by returning early when `nimbus.users` was empty, before `nimbus.groups` was considered. An operator who restricted cluster access by group alone, leaving `nimbus.users` unset, therefore r…
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Critical 9.8
Apache Syncope: Cross-Realm boundaries reconciliation bypass
Incorrect Authorization vulnerability in Apache Syncope. Delegated administration security checks performed by Reconciliation service's pull and push, being incomplete, could accept calls by administrator not provided with adequate entitlements. This issue af…
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Critical 9.8
Apache Syncope: Non-recursive Any search could skip Realms restrictions
Incorrect Authorization vulnerability in Apache Syncope. Any search requests are transformed into SQL, Neo4J or Elasticsearch / Opensearch queries, depending on the actual deployment configuration. An important component of such transformation is the Realms f…
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Critical 9.8
Apache Syncope: Cross-realm disclosure of confidential ConnId bundles configuration values
Incorrect Authorization vulnerability in Apache Syncope. An administrator with adequate entitlements in a given Realm may be able to read via REST the full Connector configuration, confidential properties included, scoped in another Realm and thus be able to …
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Critical 9.8
Apache Syncope: ClientApp update entitlement not effective
Incorrect Authorization vulnerability in Apache Syncope. An administrator with ClientApp's update entitlement is unable to perform the related operation, while ClientApp's create entitlement is checked both for create and update operations on ClientApp. This …
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Critical 9.8
Langflow is vulnerable to arbitrary code execution due to multiple incomplete code security controls and missing execution guards
IBM Langflow OSS 1.0.0 through 1.11.5 Langflow could allow an unauthenticated attacker to execute arbitrary code and access or modify chat sessions through publicly shared MCP project endpoints due to improper enforcement of public-flow security restrictions …
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Critical 9.1
rclone: RC per-server auth-proxy bypass
rclone is a command-line program to sync files and directories to and from different cloud storage providers. From 1.70.0 until 1.75.1, the serve/start RC interface accepts per-server proxyOpt.AuthProxy settings, and the FTP and S3 constructors in cmd/serve/f…
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Critical 9.1
Traefik HTTP/3 Backend NTLM Connection Reuse
Traefik is an open source HTTP reverse proxy and load balancer. From 2.11.0 until 2.11.57 and 3.7.13, the HTTP/3 entrypoint ConnContext does not call service.AddTransportOnContext, so kerberosRoundTripper uses a shared backend transport instead of a transport…
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Critical 9.8
Unauthenticated Remote Code Execution in Akana API Platform
An unauthenticated remote code execution vulnerability exists in the Policy Manager console of Akana API Platform. A path normalization discrepancy between the authentication filter and the servlet dispatcher allows a crafted request to bypass authentication …
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Critical 9.6CVE-2026-87492 Public exploit
Incorrect authorization in DevTools in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to potentially ex…
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Critical 9.9
Adobe Experience Manager | Incorrect Authorization (CWE-863)
Adobe Experience Manager is affected by an Incorrect Authorization vulnerability that could result in arbitrary code execution in the context of the current user, potentially gaining elevated access or control over the victim's account or session. A low-privi…
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Critical 9.1
Commerce PayPal - Moderately critical - Access bypass - SA-CONTRIB-2026-095
Incorrect Authorization vulnerability in Drupal Commerce PayPal allows Forceful Browsing. This issue affects Commerce PayPal versions: from 0.0.0 to 1.12.0, from 2.0.0 to 2.1.3.
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Critical 9.6
Incorrect authorization in FileSystem in Google Chrome prior to 152.0.7977.75 allowed a remote attacker leveraging soci…
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Critical 9.6
Goploy: Cross-namespace IDOR and RCE via body-supplied row id in project and project_file handlers
Goploy is an open-source automation deployment system. In versions 1.17.5 and prior, Project.AddFile, Project.EditFile, Project.RemoveFile, and Project.Edit in cmd/server/api/project/handler.go accept a project or project-file row id from the JSON body and ac…
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Critical 9.1
OAuth 1.0 session-fixation chain via unauthenticated provisional-consumer registration and insecure v1_0Allowed default
In Eclipse Lyo versions 2.0.0 to 7.0.0, OAuth server authorization checks can be bypassed when the 2-legged auth is supported by the server. In those cases, application that based their authz filters upon Lyo-provided `AbstractAdapterCredentialsFilter`, are v…
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Critical 9.8
Spring Framework Header Predicate Bypass in WebFlux Functional Endpoints
A WebFlux application using functional endpoints and deployed with DispatcherServlet may be vulnerable to a header predicate bypass in a pre-flight request. Spring Framework 7.0.0 - 7.0.8 Spring Framework 6.2.0 - 6.2.19 Spring Framework 6.1.0 - 6.1.28 Spring …
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Critical 9.8
Grav before 1.0.18 Authentication Bypass via Scoped API Key
The getgrav/grav-plugin-api plugin before 1.0.18 does not enforce API-key scope in the requireNotSuperTarget() function in UsersController.php across seven sensitive user-management endpoints. The check uses isSuperAdmin() on the acting account rather than ve…
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Critical 9.1
Webform REST - Moderately critical - Access bypass - SA-CONTRIB-2026-087
Incorrect Authorization vulnerability in Drupal Webform REST allows Forceful Browsing. This issue affects Webform REST versions: from 0.0.0 to 4.1.0.
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Critical 9.1
Apache Tomcat: Redirect after FORM auth may bypass method specific constraints
Incorrect Authorization vulnerability in Apache Tomcat's FORM authentication process allows the bypassing of a security constraint that limits user has access to a resource POST but not GET. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.24, fr…
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Critical 9.1
Apache Tomcat: Bypass longest prefix security constraint
Improper Access Control, Incorrect Authorization vulnerability in Apache Tomcat leads to security constraint bypass if a constraint for a longer path is specified before a more restrictive constraint for a shorter sub-path. This issue affects Apache Tomcat: f…
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Critical 9.8
Incorrect authorization in CustomTabs in Google Chrome on on Android prior to 152.0.7977.65 allowed a local attacker to…
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Critical 9.8
Grav Login Plugin before 1.0.16 Privilege Escalation via Unlock
Grav Login plugin versions before 1.0.16 fail to validate the target account's privilege level in the onApiUserListRowAction unlock handler. An attacker with api.users.write permission can clear login lockout counters on admin.super accounts, removing brute-f…
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Critical 9.9
Incus: Cross-project instance copy bypasses target project restrictions via TOCTOU in config merge
Incus is a system container and virtual machine manager. Prior to version 7.3.0, when copying an instance across projects, the project restriction check (`AllowInstanceCreation`) runs BEFORE the source instance's configuration is merged into the request. Dang…
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Critical 10.0
Azure Arc Elevation of Privilege Vulnerability
Incorrect authorization in Azure Arc allows an unauthorized attacker to elevate privileges over a network.
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Critical 9.9
Etherpad: JWT `admin` claim presence-only check lets non-admin OAuth users invoke every Etherpad HTTP API endpoint
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 th…
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Critical 9.6
Onyx: Cross-user OAuth-token leak via /api/mcp/servers* for per-user MCP servers
Onyx is an open-source AI platform. Prior to 3.1.10, 3.2.14, and 4.0.0, Onyx's GET /api/mcp/servers and GET /api/mcp/servers/persona/{persona_id} endpoints expose another user's OAuth Authorization header because OnyxTokenStorage.set_tokens and OnyxTokenStora…
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Critical 9.9
Multicloud-operators-subscription: multicloud-operators-subscription: isclusteradmin() trusts user-settable annotations on managed clusters
A flaw was found in the multicloud-operators-subscription component. This vulnerability allows a user on a managed cluster to escalate their privileges by creating a Subscription with specific, crafted annotations. Successful exploitation grants the attacker …
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Critical 9.8
Pods <= 3.3.9 - Unauthenticated Privilege Escalation via Authorization Bypass to Admin Methods via 'pods_admin' AJAX Router
The Pods – Custom Content Types and Fields plugin for WordPress is vulnerable to Privilege Escalation via Authorization Bypass in all versions up to, and including, 3.3.9. The vulnerability exists because the pods_admin AJAX router funnels every access check …
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Critical 9.1
Public-only repository tokens can update private PR head branches
Public-only repository tokens can update private PR head branches
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Critical 9.6
Token public-only scope bypassed on Limited-visibility owners (Repository + Package categories) — residual after CVE-2026-25714 / PR #37118
Token public-only scope bypassed on Limited-visibility owners (Repository + Package categories) — residual after CVE-2026-25714 / PR #37118
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Critical 9.6
In OpenStack Designate before 22.0.1, zone creation checks (_is_subzone, _is_superzone, and the duplicate-zone DB const…