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
4,303 results · Feed
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Low 2.0
NocoDB: OAuth Token Scope Not Enforced at ACL Layer Allows Scope Escalation
NocoDB is software for building databases as spreadsheets. Prior to 2026.04.1, the OAuth token strategy attached oauth_scope and oauth_granted_resources to the request user, but the ACL middleware never consulted either. An OAuth token issued with a restricte…
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High 7.1
FOSSBilling: Broken Authorization in Client Transaction and Order Listings
FOSSBilling is a free, open-source billing and client management system. In versions 0.7.2 and prior, a query-construction flaw in client list endpoints allowed authenticated clients to bypass tenant scoping and retrieve other clients’ data. Details In Servic…
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Medium 6.0CVE-2026-54761 Public exploit
Traefik: Kubernetes Gateway crossProviderNamespaces bypass allows HTTPRoute outside the allowlist to expose internal Traefik services
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) bac…
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High 7.8
rtk: Permission-gate bypass in rtk rewrite auto-allow via unsplit shell separators
rtk filters and compresses command outputs before they reach your LLM context. Prior to 0.42.2, the permission splitter did not conservatively split or reject several shell constructs that Bash treats as command execution boundaries or nested execution. As a …
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High 8.4
Daytona: Cross-tenant organization takeover via invitation acceptance with an unverified email
Daytona is a secure and elastic infrastructure runtime for AI-generated code execution and agent workflows. Prior to 0.184.0, organization invitations could be accepted (and declined) by a user whose email matched the invitation but had not been verified. Day…
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High 7.0
Daytona: Public sandbox previews remain accessible for up to one hour after being made private
Daytona is a secure and elastic infrastructure runtime for AI-generated code execution and agent workflows. From 0.101.0 until 0.184.0, sandbox previews that were switched from public to private could remain reachable without authentication for a short period…
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Medium 6.5
Daytona: Cross-tenant data leak in notification WebSocket gateway via unverified organizationId join
Daytona is a secure and elastic infrastructure runtime for AI-generated code execution and agent workflows. Prior to 0.185.0, a cross-tenant authorization flaw in Daytona's notification WebSocket gateway allowed any authenticated user to subscribe to another …
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Medium 5.4
Caddy: Remote Admin Authorization Bypass in `/config` API via Array Index Normalization
Caddy is an extensible server platform that uses TLS by default. From 2.4.0 until 2.11.3, the authorization layer and the /config traversal layer do not agree on what object the path refers to. In this case, a path authorized for one config object is accepted…
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Medium 5.2
Deno: process.loadEnvFile() bypasses env permission checks and mutates process.env with only read access
Deno is a JavaScript, TypeScript, and WebAssembly runtime. Prior to 2.8.1, environment access is gated by the env permission. You can deny it with --deny-env, or restrict it to a specific allowlist with --allow-env=FOO,BAR. The expectation is that a program r…
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Medium 6.3
Open WebUI: Authenticated users can target arbitrary configured Ollama backends via unguarded url_idx path parameter
Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.6, several direct, index-addressed Ollama proxy routes accept a caller-supplied url_idx path parameter and use it as a raw index into the admin-con…
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Medium 5.3
Open WebUI: Any authenticated user can read other users' private notes via Socket.IO
Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.8.11, the ydoc:document:join Socket.IO handler checks note ownership only when the document_id starts with note: (colon). However, the YdocManager st…
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High 8.5
n8n: Credential Exfiltration via Permission Bypass
n8n is an open source workflow automation platform. Prior to 1.123.55, 2.25.7, and 2.26.2, a member-level user with editor access to a shared workflow could reference credentials they do not own via specific public API endpoints. Credential ownership checks w…
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Medium 5.4
NanoClaw < 2.1.0 - Privilege Escalation via Forged Channel Approval Callback
NanoClaw before 2.1.0 contains a privilege escalation vulnerability in the channel-registration approval flow where handleChannelApprovalResponse fails to validate admin privileges over target agent groups. Scoped admins can submit forged or stale connect cal…
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Critical 10.0CVE-2026-27604 Scanner template
FOSSBilling: Improper API Role Validation (system) Enables Unauthenticated Access to Privileged Admin Functions
FOSSBilling is a free, open-source billing and client management system. Starting in version 0.5.4 and prior to version 0.8.0, an authorization bypass in the API role handling allows unauthenticated access to privileged `/api/system/*` endpoints. Because `sys…
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High 7.7
Flowise - Cross-Workspace Information Disclosure via chatflows/apikey Endpoint
Flowise before 3.1.2 contains an information disclosure vulnerability in the /api/v1/chatflows/apikey/:apikey endpoint. When the keyonly query parameter is omitted (the default), the endpoint returns not only the chatflows bound to the supplied API key but al…
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High 8.7
Nest: Middleware Bypass on Fastify via Trailing Slash
Nest is a framework for building scalable Node.js server-side applications. Prior to 11.1.24, an authentication bypass vulnerability exists in @nestjs/platform-fastify. When middleware is registered through NestJS's MiddlewareConsumer.forRoutes() API on the F…
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High 8.4
Caching of Authentication allows Authentication Bypass between users in qSnapper
Incorrect caching of authentication between different users of the qSnapper dbus service before version 1.3.3 allowed any local attacker to use dbus functions after a privileged users has authenticated for them.
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High 8.4
Caching of Authentication allows Authentication Bypass in qSnapper
Incorrect caching of authentication between different polkit methods in qSnapper before version 1.3.3 allowed a local attacker to use functions like "restore from snapshot" even if only allowed to do "delete snapshot".
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Low 3.8
User Manager can demote bot accounts to guest without bot-management permission
Mattermost versions 11.7.x <= 11.7.0, 10.11.x <= 10.11.17 fail to validate bot targets when demoting users to guests which allows a lower-privileged administrator to degrade arbitrary bot accounts via the standard demote-user API.. Mattermost Advisory ID: MMS…
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Low 3.8
Improper Permission Check Allows User Manager to Deactivate Bot Accounts
Mattermost versions 11.7.x <= 11.7.0, 10.11.x <= 10.11.17 fail to enforce bot-specific permission checks on the user active status endpoint, which allows a User Manager with user management write access but no Integrations access to deactivate bot accounts vi…
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High 7.1
Broken access control in MISP core allows cross-organization unauthorized modification or deletion of analyst data, event reports, collections, templates, and decaying models
MISP core contained multiple broken access-control flaws where authorization checks were performed against the wrong entity, or where ownership/editability checks were missing on write paths. In affected subsystems, a lower-privileged authenticated user with …
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Low 2.3
Apache NiFi: Incorrect Authorization for Configuration Verification Requests
Authorization handling for component configuration verification requests in Apache NiFi 1.15.0 through 2.9.0 allows clients with read access to submit proposed configuration properties. The proposed properties override current configuration, enabling users wi…
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Medium 6.3
BerriAI litellm Completions banned_keywords.py async_pre_call_hook authorization
A security flaw has been discovered in BerriAI litellm up to 1.82.5. Affected is the function async_pre_call_hook of the file enterprise/enterprise_hooks/banned_keywords.py of the component Completions Interface. The manipulation of the argument prompt result…
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High 7.5
Authentication/Authorization Bypass via Advanced Path Normalization Vulnerabilities
Quarkus is a Java framework for building cloud-native applications. Prior to versions 3.37.0, 3.36.3, 3.33.2.1, 3.33.3, 3.27.4.1, 3.27.5, and 3.20.6.2, Quarkus HTTP path-based authorization policies can be bypassed using encoded semicolons (%3B) to smuggle ma…
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Low 1.3
Authelia has an Edge Case Access Control Rule Mismatch
Authelia is an open-source authentication and authorization server providing two-factor authentication and single sign-on (SSO) for applications via a web portal. In versions 4.36.0 through 4.39.19, due to lack of canonicalization of domains in very specific …
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High 7.1
DevGuard has improper authorization on public assets
DevGuard provides vulnerability management for the full software supply chain. Prior to 1.4.2, on a DevGuard API instance with one or more public assets, any authenticated user — including users from a different organization with no membership or role in the …
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Critical 10.0
ProxySQL: PROXY-Protocol-v1 UNKNOWN parses spoofed source IP, bypassing mysql_query_rules.client_addr ACL
ProxySQL is a proxy for MySQL and its forks, as well as PostgreSQL. In versions 2.0.0 through 3.0.8, the ProxySQL MySQL frontend accepts the `PROXY UNKNOWN <addr> <addr> <port> <port>\r\n` PP1 frame as a well-formed PROXY protocol header. The HAProxy PROXY pr…
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Medium 4.3
Statamic CMS missing authorization on Control Panel fieldtype endpoints allows disclosure of restricted resources
Statamic is a Laravel and Git powered content management system (CMS). Prior to 5.73.23 and 6.20.0, an authenticated Control Panel user could view metadata and content for resources they don't have permission to view, including entries, assets, users, roles, …
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High 7.8
ip6_vti: set netns_immutable on the fallback device.
In the Linux kernel, the following vulnerability has been resolved: ip6_vti: set netns_immutable on the fallback device. john1988 and Noam Rathaus reported that vti6_init_net() does not set the netns_immutable flag on the per-netns fallback tunnel device (ip6…
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Medium 5.3
Apache APISIX: authz-casdoor incorrect session sharing
Incorrect Authorization vulnerability in Apache APISIX. An attacker can capitalise on authz-casdoor plugin under default configuration to authenticate themselves with credentials from a different source. This issue affects Apache APISIX: from 2.14.1 through 3…
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High 8.8
PraisonAI - Arbitrary Shell Command Execution via Hardcoded Approval Mode Override
PraisonAI before 4.5.128 contains an arbitrary shell command execution vulnerability where the UI modules hardcode approval_mode to auto, overriding administrator configuration from PRAISON_APPROVAL_MODE environment variable. Authenticated attackers can instr…
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Medium 5.5
PraisonAI - Tool Approval Cache Bypass via Coarse-Grained Caching
PraisonAI before 1.5.128 caches tool approval decisions by tool name only, not by invocation arguments, allowing subsequent execute_command calls to bypass approval prompts. Attackers can exploit this by obtaining initial approval for a benign command, then s…
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Medium 5.9
Nexus Repository Manager - Incorrect Authorization allows credential disclosure via proxy repository configuration
Sonatype Nexus Repository Manager before 3.93.0 contains an authorization vulnerability in the proxy repository configuration that allows a delegated repository administrator to disclose stored upstream proxy credentials.
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Critical 9.8
WordPress SMS Alert Order Notifications plugin <= 3.9.4 - Privilege Escalation vulnerability
Subscriber Privilege Escalation in SMS Alert Order Notifications <= 3.9.4 versions.
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Medium 6.5
Apache DolphinScheduler: The `/v2` experimental interface lacks permission checks
Incorrect Authorization vulnerability of `/v2` experimental interface in Apache DolphinScheduler. This issue affects Apache DolphinScheduler: before 3.4.2. Users are recommended to upgrade to version 3.4.2, which fixes the issue.
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Medium 6.5
Apache DolphinScheduler: Incorrect Authorization vulnerability allows users to access workflow instance information belonging to projects they do not have permission to access.
Incorrect Authorization vulnerability allows users to access workflow instance information belonging to projects they do not have permission to access. This issue affects Apache DolphinScheduler versions prior to 3.4.2. Users are recommended to upgrade to ver…
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Medium 4.9
Apache DolphinScheduler: Incorrect Authorization vulnerability allows users with system login privileges to delete task definitions in unauthorized projects
Incorrect Authorization vulnerability allows users with system login privileges to delete task definitions in unauthorized projects This issue affects Apache DolphinScheduler versions prior to 3.4.2. Users are recommended to upgrade to version 3.4.2, which fi…
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High 7.5
Apache DolphinScheduler: DataSource API Missing Authorization Check Leads to Arbitrary Data Source Metadata Disclosure
DataSource API Missing Authorization Check Leads to Arbitrary Data Source Metadata Disclosure in Apache DolphinScheduler. This issue affects Apache DolphinScheduler: before 3.4.2. Users are recommended to upgrade to version 3.4.2, which fixes the issue.
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Medium 4.3
Inappropriate implementation in Passwords in Google Chrome prior to 149.0.7827.155 allowed a remote attacker to leak cr…
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Critical 9.9
Postiz has cross-tenant SUPERADMIN takeover via Skool-provider JWT forgery
Postiz is an AI social media scheduling tool. In versions prior to 2.21.8, the Skool integration callback signed an attacker-controlled JSON blob into a session-shape JWT using the application's JWT_SECRET, and the auth middleware trusted every claim in that …