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CWE-306 (关键功能的认证机制缺失) — Vulnerability Class 1920

1920 vulnerabilities classified as CWE-306 (关键功能的认证机制缺失). AI Chinese analysis included.

CWE-306 represents a critical authentication weakness where software fails to verify user identity before executing sensitive operations or consuming substantial resources. Attackers typically exploit this vulnerability by directly invoking administrative endpoints, initiating high-cost processes, or accessing restricted data without valid credentials, effectively bypassing security controls. This oversight allows unauthorized users to perform actions intended only for authenticated individuals, leading to privilege escalation, data breaches, or denial of service through resource exhaustion. To mitigate this risk, developers must implement robust access control mechanisms that strictly enforce authentication checks on all critical functions. This involves integrating secure session management, validating tokens for every request, and applying the principle of least privilege to ensure that only verified users with appropriate permissions can trigger sensitive operations or consume significant system resources.

MITRE CWE Description
The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.
Common Consequences (1)
Access Control, Other Gain Privileges or Assume Identity, Varies by Context
Exposing critical functionality essentially provides an attacker with the privilege level of that functionality. The consequences will depend on the associated functionality, but they can range from reading or modifying sensitive data, accessing administrative or other privileged functionality, or p…
Mitigations (5)
Architecture and Design Divide the software into anonymous, normal, privileged, and administrative areas. Identify which of these areas require a proven user identity, and use a centralized authentication capability. Identify all potential communication channels, or other means of interaction with the software, to ensure that all channels are appropriately protected, including those channels that are assumed to be access…
Architecture and Design For any security checks that are performed on the client side, ensure that these checks are duplicated on the server side, in order to avoid CWE-602. Attackers can bypass the client-side checks by modifying values after the checks have been performed, or by changing the client to remove the client-side checks entirely. Then, these modified values would be submitted to the server.
Architecture and Design Where possible, avoid implementing custom, "grow-your-own" authentication routines and consider using authentication capabilities as provided by the surrounding framework, operating system, or environment. These capabilities may avoid common weaknesses that are unique to authentication; support automatic auditing and tracking; and make it easier to provide a clear separation between authentication…
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 libraries with authentication capabilities such as OpenSSL or the ESAPI Authenticator [REF-45].
Implementation, System Configuration, Operation When storing data in the cloud (e.g., S3 buckets, Azure blobs, Google Cloud Storage, etc.), use the provider's controls to require strong authentication for users who should be allowed to access the data [REF-1297] [REF-1298] [REF-1302].
Examples (2)
In the following Java example the method createBankAccount is used to create a BankAccount object for a bank management application.
public BankAccount createBankAccount(String accountNumber, String accountType, String accountName, String accountSSN, double balance) { BankAccount account = new BankAccount(); account.setAccountNumber(accountNumber); account.setAccountType(accountType); account.setAccountOwnerName(accountName); account.setAccountOwnerSSN(accountSSN); account.setBalance(balance); return account; }
Bad · Java
private boolean isUserAuthentic = false; // authenticate user, // if user is authenticated then set variable to true // otherwise set variable to false public boolean authenticateUser(String username, String password) { ... } public BankAccount createNewBankAccount(String accountNumber, String accountType, String accountName, String accountSSN, double balance) { BankAccount account = null; if (isUserAuthentic) { account = new BankAccount(); account.setAccountNumber(accountNumber); account.setAccountType(accountType); account.setAccountOwnerName(accountName); account.setAccountOwnerSSN(accountS
Good · Java
In 2022, the OT:ICEFALL study examined products by 10 different Operational Technology (OT) vendors. The researchers reported 56 vulnerabilities and said that the products were "insecure by design" [REF-1283]. If exploited, these vulnerabilities often allowed adversaries to change how the products operated, ranging from denial of service to changing the code that the products executed. Since these…
CVE ID Title CVSS Severity Published
CVE-2026-58574 Dell powerstore 500t 授权问题漏洞 — PowerStore 500T 9.8 Critical 2026-08-31
CVE-2026-82641 Keploy 3.1.0-3.6.25 Unauthenticated TLS Key Exposure — Keploy 8.6 High 2026-08-30
CVE-2026-82473 KubeEdge CloudCore through 1.23.1 Missing Authentication on Node Task Endpoints — kubeedge 8.2 High 2026-08-29
CVE-2026-82472 Documenso before 2.13.0 Unauthenticated File Upload via /api/files/upload-pdf — documenso 7.5 High 2026-08-29
CVE-2026-82452 rust-iot-platform Authentication Bypass via Missing Request Guards — rust-iot-platform 9.8 Critical 2026-08-29
CVE-2026-82282 Atlantis GitHub App Setup Endpoint Returns App Credentials to Unauthenticated Callers — atlantis 8.0 High 2026-08-28
CVE-2026-82276 StarRocks Frontend REST Handlers Bypass the Base Class Authentication Gate — starrocks 5.3 Medium 2026-08-28
CVE-2026-82277 Argo Rollouts Dashboard Unauthenticated Mutating Operations — argo-rollouts 9.8 Critical 2026-08-28
CVE-2026-82266 Redpanda Admin API Unauthenticated Superuser Access via Default Configuration — redpanda 9.8 Critical 2026-08-28
CVE-2026-82265 Zipkin Unauthenticated Spring Boot Actuator Endpoints Exposure — zipkin 6.5 Medium 2026-08-28
CVE-2026-77977 Ebyte NA111-M Missing Authentication for Critical Function — Ebyte NA111-M Firmware 8.1 High 2026-08-27
CVE-2026-78239 Xiiaozet LK100W Missing Authentication for Critical Function — Xiiaozet LK100W 9.8 Critical 2026-08-27
CVE-2026-73125 Ebyte NA111-M Missing Authentication for Critical Function — Ebyte NA111-M Firmware 9.8 Critical 2026-08-27
CVE-2026-81735 UI-TARS-desktop @agent-infra MCP Servers Bind Every Interface Without Authentication, Exposing Arbitrary Command Execution — UI-TARS-desktop 10.0 Critical 2026-08-27
CVE-2026-81664 OpenFaaS Gateway 0.27.11 through 0.27.13 Missing Authentication on the /system/telemetry Route — faas 5.3 Medium 2026-08-27
CVE-2026-81098 Telnyx MCP Server through 6.83.0 Missing Authentication on Streamable HTTP Transport — telnyx-mcp 9.1 Critical 2026-08-27
CVE-2026-81094 mcp-router CLI before 0.6.3 Binds the MCP Aggregator to All Interfaces Without Requiring Authentication — mcp-router 9.1 Critical 2026-08-27
CVE-2026-80208 APITable through 1.13.0-beta.1 Missing Authentication on the Internal Account Closure Endpoints — apitable 8.2 High 2026-08-27
CVE-2026-80207 APITable through 1.13.0-beta.1 Missing Authentication on the Internal Notification Create Endpoint — apitable 5.3 Medium 2026-08-27
CVE-2026-65956 KubePi: Unauthenticated SSO/OIDC configuration allows admin account takeover and SSRF — KubePi 10.0 Critical 2026-08-26
CVE-2026-81202 itsourcecode Payroll System CRUD Operation ajax.php delete missing authentication — Payroll System 7.3 High 2026-08-26
CVE-2026-75601 Static Web Server: Authentication bypass on /metrics endpoint when --basic-auth is enabled — static-web-server 4.3 Medium 2026-08-26
CVE-2026-47837 Spring Cloud Config Server Monitor Endpoint Does Not Validate Webhook Requests — Spring Cloud Config 6.8 Medium 2026-08-26
CVE-2026-81032 NebulaGraph through 3.8.0 Unauthenticated Read and Modification of Runtime Configuration — nebula 9.8 Critical 2026-08-26
CVE-2026-80234 CAYIN Technology|CAYIN CMS-WS/CMS-SE - Missing Authentication — CAYIN CMS-WS 5.3 Medium 2026-08-26
CVE-2026-65105 NVIDIA NemoClaw 授权问题漏洞 — NemoClaw 8.1 High 2026-08-25
CVE-2026-55640 Nextcloud MCP Server: Unauthenticated `POST /webhooks/nextcloud` allows arbitrary vector data deletion when `WEBHOOK_SECRET` is unset ( default ) — nextcloud-mcp-server 9.1 Critical 2026-08-25
CVE-2026-55539 PraisonAI: [Auth Bypass] PraisonAI async Jobs API (`/api/v1/runs`) has no authentication — unauthenticated job execution, result theft, cancel and delete — PraisonAI 8.6 High 2026-08-25
CVE-2026-55538 PraisonAI: [Auth Bypass] `praisonai serve agents --api-key` is silently ignored — agent-invocation routes (`POST /agents`, `POST /agents/{agent_name}`) run unauthenticated — PraisonAI 7.3 High 2026-08-25
CVE-2026-55534 PraisonAI serve agents --api-key is ignored, allowing unauthenticated remote agent execution — PraisonAI 8.6 High 2026-08-25

Vulnerabilities classified as CWE-306 (关键功能的认证机制缺失) represent 1920 CVEs. The CWE taxonomy describes the weakness; review individual CVEs for product-specific impact.