Common Weakness Enumeration

CWE-306

Missing Authentication for Critical Function

The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.

CVE-2026-49357 (GCVE-0-2026-49357)

Vulnerability from cvelistv5 – Published: 2026-06-19 13:11 – Updated: 2026-06-22 17:15
VLAI
Title
Streamable HTTP mode exposes LINE Desktop read/send tools without MCP authentication
Summary
Line Desktop MCP is a project that, while unaffiliated with the official line-bot-mcp-server, allows users to directly operate the LINE Desktop application on Windows or Mac via MCP. `line-desktop-mcp` supports a `--http-mode` Streamable HTTP transport for use with clients such as n8n. In this mode the server binds to `0.0.0.0` and exposes the MCP `/mcp` endpoint without an MCP-layer authentication check. Prior to version 1.1.2, any network client that can reach the port can initialize a session, list tools, and call tools that read LINE Desktop chat history or send LINE messages through the already logged-in desktop application. Version 1.1.2 fixes the issue.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-306 - Missing Authentication for Critical Function
  • CWE-862 - Missing Authorization
Assigner
References
Impacted products
Vendor Product Version
dtwang line-desktop-mcp Affected: < 1.1.2
Create a notification for this product.
Show details on NVD website

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CVE-2026-4959 (GCVE-0-2026-4959)

Vulnerability from cvelistv5 – Published: 2026-03-27 15:31 – Updated: 2026-03-31 15:09
VLAI
Title
OpenBMB XAgent ShareServer WebSocket Endpoint share.py check_user missing authentication
Summary
A vulnerability was found in OpenBMB XAgent 1.0.0. This impacts the function check_user of the file XAgentServer/application/websockets/share.py of the component ShareServer WebSocket Endpoint. Performing a manipulation of the argument interaction_id results in missing authentication. Remote exploitation of the attack is possible. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
URL Tags
https://vuldb.com/?id.353836 vdb-entrytechnical-description
https://vuldb.com/?ctiid.353836 signaturepermissions-required
https://vuldb.com/?submit.777622 third-party-advisory
https://gist.github.com/YLChen-007/531ec6b169f4b9… exploit
Impacted products
Vendor Product Version
OpenBMB XAgent Affected: 1.0.0
    cpe:2.3:a:openbmb:xagent:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
Eric-z (VulDB User) VulDB
Show details on NVD website

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CVE-2026-49973 (GCVE-0-2026-49973)

Vulnerability from cvelistv5 – Published: 2026-06-11 19:04 – Updated: 2026-06-13 02:37 X_Open Source
VLAI
Title
Hermes WebUI < 0.51.358 Unauthenticated Password Takeover via /api/settings
Summary
Hermes WebUI before version 0.51.358 contains an improper access control vulnerability that allows unauthenticated remote attackers to hijack initial setup by submitting the _set_password parameter to the settings API endpoint without any network origin restriction. Attackers on any reachable network can send a POST request to the settings endpoint during the first-run setup window to persist an arbitrary password hash, obtain a valid session cookie, and lock out the legitimate operator from their own instance.
SSVC
Exploitation: poc Automatable: yes Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-306 - Missing Authentication for Critical Function
Assigner
Impacted products
Vendor Product Version
nesquena hermes-webui Affected: 0 , < 0.51.358 (semver)
Create a notification for this product.
Date Public
2026-06-10 00:00
Credits
Chia Min Jun Lennon
Show details on NVD website

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CVE-2026-49980 (GCVE-0-2026-49980)

Vulnerability from cvelistv5 – Published: 2026-06-24 17:52 – Updated: 2026-06-27 05:17
VLAI
Title
Rclone: Unauthenticated command execution in `rclone rcd --rc-serve` via inline remote instantiation, bypassing CVE-2026-41179 fix
Summary
Rclone is a command-line program to sync files and directories to and from different cloud storage providers. From 1.46.0 until 1.74.3, rclone rcd --rc-serve accepts unauthenticated GET and HEAD requests to paths of the form: /[remote:path]/object. The remote value is parsed from the URL and passed to normal backend initialization. Inline remote configuration can set backend options that execute local commands during initialization. As a result, a single unauthenticated GET or HEAD request can execute a command as the rclone process user. This vulnerability is fixed in 1.74.3.
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-306 - Missing Authentication for Critical Function
  • CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Assigner
Impacted products
Show details on NVD website

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CVE-2026-5000 (GCVE-0-2026-5000)

Vulnerability from cvelistv5 – Published: 2026-03-28 15:00 – Updated: 2026-04-01 14:06
VLAI
Title
PromtEngineer localGPT API Endpoint server.py LocalGPTHandler missing authentication
Summary
A vulnerability was detected in PromtEngineer localGPT up to 4d41c7d1713b16b216d8e062e51a5dd88b20b054. Impacted is the function LocalGPTHandler of the file backend/server.py of the component API Endpoint. The manipulation of the argument BaseHTTPRequestHandler results in missing authentication. The attack can be executed remotely. This product implements a rolling release for ongoing delivery, which means version information for affected or updated releases is unavailable. The vendor was contacted early about this disclosure but did not respond in any way.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
URL Tags
https://vuldb.com/vuln/353887 vdb-entrytechnical-description
https://vuldb.com/vuln/353887/cti signaturepermissions-required
https://vuldb.com/submit/778315 third-party-advisory
https://github.com/August829/CVEP/issues/8 issue-tracking
Impacted products
Vendor Product Version
PromtEngineer localGPT Affected: 4d41c7d1713b16b216d8e062e51a5dd88b20b054
Create a notification for this product.
Credits
Yu_Bao (VulDB User) VulDB
Show details on NVD website

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CVE-2026-50082 (GCVE-0-2026-50082)

Vulnerability from cvelistv5 – Published: 2026-06-12 15:00 – Updated: 2026-06-12 15:53
VLAI
Title
Aqara Developer Portal insecure authentication token
Summary
The Aqara Cloud Developer Portal (developer.aqara.com) issued a developer token to any email address supplied by the attacker. This is an instance of "CWE-306: Missing Authentication for Critical Function" with an estimated CVSS of CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N (6.5 Medium). When combined with CVE-2026-50083, CVE-2026-50084, and CVE-2026-50085, any otherwise-unauthenticated attacker could execute a full takeover of affected devices.
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-306 - Missing Authentication for Critical Function
Assigner
References
Impacted products
Vendor Product Version
Aqara Cloud Developer Portal Affected: 2026-04-20 , < 0 (date)
Create a notification for this product.
Date Public
2026-06-12 15:00
Credits
Sammy Azdoufal Tod Beardsley of runZero, Inc.
Show details on NVD website

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CVE-2026-50085 (GCVE-0-2026-50085)

Vulnerability from cvelistv5 – Published: 2026-06-12 15:01 – Updated: 2026-06-12 15:54
VLAI
Title
Aqara Board IoT insecure debug API
Summary
The Aqara Board service (op-test.aqara.com) accepts arbitrary MQTT command payloads, and forwards them to the platfom's HiveMQ broker without authentication. This is an instance of "CWE-306: Missing Authentication for Critical Function" and has an estimated CVSS ofCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L (8.6 High). When combined with CVE-2026-50082, CVE-50083, and CVE-50084, this can lead to a fully unauthenticated, remote takeover of affected devices.
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-306 - Missing authentication for critical function
Assigner
References
Impacted products
Vendor Product Version
Aqara Board service Affected: 2026-04-20 , < 0 (date)
Create a notification for this product.
Date Public
2026-06-12 15:00
Credits
Sammy Azdoufal Tod Beardsley of runZero, Inc.
Show details on NVD website

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CVE-2026-50136 (GCVE-0-2026-50136)

Vulnerability from cvelistv5 – Published: 2026-06-26 20:36 – Updated: 2026-06-27 03:14
VLAI
Title
Budibase: Unauthenticated S3 signed upload URL generation allows arbitrary writes with stored datasource credentials
Summary
Budibase is an open-source low-code platform. Prior to 3.39.3, the application server exposes an unauthenticated endpoint that generates S3 PutObject presigned URLs using credentials stored in a workspace datasource. The route is protected only by the recaptcha middleware and does not require authentication, table permission, datasource permission, or builder access. A public caller who knows a workspace ID and S3 datasource ID can request a signed upload URL for attacker-controlled bucket and key values. This vulnerability is fixed in 3.39.3.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-306 - Missing Authentication for Critical Function
Assigner
References
Impacted products
Vendor Product Version
Budibase budibase Affected: < 3.39.3
Create a notification for this product.
Show details on NVD website

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CVE-2026-50225 (GCVE-0-2026-50225)

Vulnerability from cvelistv5 – Published: 2026-06-04 09:29 – Updated: 2026-06-04 12:22
VLAI
Title
Account Creation Exhaustion
Summary
The registration path /v1/account/register provides no bot mitigation mechanisms, allowing malicious automated systems to flood the database.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-306 - Missing Authentication for Critical Function
Assigner
References
Impacted products
Vendor Product Version
Acer Connect M6E 5G Portable WiFi Router Affected: * , ≤ M6E_AI_1.00.000019 (custom)
Create a notification for this product.
Credits
Ta-Lun Yen
Show details on NVD website

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CVE-2026-50245 (GCVE-0-2026-50245)

Vulnerability from cvelistv5 – Published: 2026-06-11 19:48 – Updated: 2026-06-12 13:49
VLAI
Title
Brickcom Cameras Missing Authentication for Critical Function
Summary
Brickcom cameras allow unauthenticated access to live snapshot images via the /ONVIF endpoint and no authentication is required to retrieve still images from the camera feed.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-306 - Missing authentication for critical function
Assigner
Credits
CISA discovered the PoCs (Proof of Concept) as authored by parsa rezaie khiabanloo.
Show details on NVD website

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Mitigation

Phase: Architecture and Design

Description:

  • 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 accessible only by authorized parties. Developers sometimes perform authentication at the primary channel, but open up a secondary channel that is assumed to be private. For example, a login mechanism may be listening on one network port, but after successful authentication, it may open up a second port where it waits for the connection, but avoids authentication because it assumes that only the authenticated party will connect to the port.
  • In general, if the software or protocol allows a single session or user state to persist across multiple connections or channels, authentication and appropriate credential management need to be used throughout.
Mitigation ID: MIT-15

Phase: Architecture and Design

Description:

  • 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.
Mitigation

Phase: Architecture and Design

Description:

  • 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 tasks and authorization tasks.
  • In environments such as the World Wide Web, the line between authentication and authorization is sometimes blurred. If custom authentication routines are required instead of those provided by the server, then these routines must be applied to every single page, since these pages could be requested directly.
Mitigation ID: MIT-4.5

Phase: Architecture and Design

Strategy: Libraries or Frameworks

Description:

  • 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].
Mitigation

Phases: Implementation, System Configuration, Operation

Description:

  • 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].
CAPEC-12: Choosing Message Identifier

This pattern of attack is defined by the selection of messages distributed via multicast or public information channels that are intended for another client by determining the parameter value assigned to that client. This attack allows the adversary to gain access to potentially privileged information, and to possibly perpetrate other attacks through the distribution means by impersonation. If the channel/message being manipulated is an input rather than output mechanism for the system, (such as a command bus), this style of attack could be used to change the adversary's identifier to more a privileged one.

CAPEC-166: Force the System to Reset Values

An attacker forces the target into a previous state in order to leverage potential weaknesses in the target dependent upon a prior configuration or state-dependent factors. Even in cases where an attacker may not be able to directly control the configuration of the targeted application, they may be able to reset the configuration to a prior state since many applications implement reset functions.

CAPEC-216: Communication Channel Manipulation

An adversary manipulates a setting or parameter on communications channel in order to compromise its security. This can result in information exposure, insertion/removal of information from the communications stream, and/or potentially system compromise.

CAPEC-36: Using Unpublished Interfaces or Functionality

An adversary searches for and invokes interfaces or functionality that the target system designers did not intend to be publicly available. If interfaces fail to authenticate requests, the attacker may be able to invoke functionality they are not authorized for.

CAPEC-62: Cross Site Request Forgery

An attacker crafts malicious web links and distributes them (via web pages, email, etc.), typically in a targeted manner, hoping to induce users to click on the link and execute the malicious action against some third-party application. If successful, the action embedded in the malicious link will be processed and accepted by the targeted application with the users' privilege level. This type of attack leverages the persistence and implicit trust placed in user session cookies by many web applications today. In such an architecture, once the user authenticates to an application and a session cookie is created on the user's system, all following transactions for that session are authenticated using that cookie including potential actions initiated by an attacker and simply "riding" the existing session cookie.

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