Common Weakness Enumeration
CWE-306
AllowedMissing Authentication for Critical Function
Abstraction: Base · Status: Draft
The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.
3465 vulnerabilities reference this CWE, most recent first.
CVE-2026-3558 (GCVE-0-2026-3558)
Vulnerability from cvelistv5 – Published: 2026-03-13 20:36 – Updated: 2026-03-16 20:18
VLAI
EPSS
VEX
Title
Philips Hue Bridge HomeKit Accessory Protocol Transient Pairing Mode Authentication Bypass Vulnerability
Summary
Philips Hue Bridge HomeKit Accessory Protocol Transient Pairing Mode Authentication Bypass Vulnerability. This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of Philips Hue Bridge. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the configuration of the HomeKit Accessory Protocol service, which listens on TCP port 8080 by default. The issue results from the lack of authentication prior to allowing access to functionality. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-28374.
Severity
8.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-306 - Missing Authentication for Critical Function
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.zerodayinitiative.com/advisories/ZDI-… | x_research-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Philips | Hue Bridge |
Affected:
1.73.1973146020
|
Date Public
2026-03-06 21:19
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CVE-2026-3527 (GCVE-0-2026-3527)
Vulnerability from cvelistv5 – Published: 2026-03-26 20:03 – Updated: 2026-03-27 18:14
VLAI
EPSS
VEX
Title
AJAX Dashboard - Critical - Access bypass - SA-CONTRIB-2026-022
Summary
Missing Authentication for Critical Function vulnerability in Drupal AJAX Dashboard allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects AJAX Dashboard: from 0.0.0 before 3.1.0.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-306 - Missing Authentication for Critical Function
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Drupal | AJAX Dashboard |
Affected:
0.0.0 , < 3.1.0
(semver)
|
Date Public
2026-03-04 17:57
Credits
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CVE-2026-3356 (GCVE-0-2026-3356)
Vulnerability from cvelistv5 – Published: 2026-03-31 18:40 – Updated: 2026-04-01 13:43
VLAI
EPSS
VEX
Title
Missing Authentication for Critical Function vulnerability in Anritsu Remote Spectrum Monitor
Summary
The MS27102A Remote Spectrum Monitor is vulnerable to an authentication bypass that allows unauthorized users to access and manipulate its management interface. Because the device provides no mechanism to enable or configure authentication, the issue is inherent to its design rather than a deployment error.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-306 - Missing authentication for critical function
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.cisa.gov/news-events/ics-advisories/i… | government-resource |
Impacted products
4 products
| Vendor | Product | Version | |
|---|---|---|---|
| Anritsu | Remote Spectrum Monitor MS27100A |
Affected:
All versions
(custom)
|
|
| Anritsu | Remote Spectrum Monitor MS27101A |
Affected:
All versions
(custom)
|
|
| Anritsu | Remote Spectrum Monitor MS27102A |
Affected:
All versions
(custom)
|
|
| Anritsu | Remote Spectrum Monitor MS27103A |
Affected:
All versions
(custom)
|
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CVE-2026-3323 (GCVE-0-2026-3323)
Vulnerability from cvelistv5 – Published: 2026-04-28 10:24 – Updated: 2026-04-28 12:11
VLAI
EPSS
VEX
Title
VEGA: Privilege escalation through unsecured configuration interface in VEGAPULS devices
Summary
An unsecured configuration interface on affected devices allows unauthenticated remote attackers to access sensitive information, including hashed credentials and access codes.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-306 - Missing Authentication for Critical Function
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://certvde.com/en/advisories/VDE-2026-016 | vendor-advisory |
| https://vega.csaf-tp.certvde.com/.well-known/csaf… | vendor-advisory |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| VEGA Grieshaber | VEGAPULS 6X Two-wire PROFINET, Modbus TCP, OPC UA (Ethernet-APL) |
Affected:
1.0.0
|
|
| VEGA Grieshaber | VEGAPULS 6X Two-wire PROFINET, Modbus TCP, OPC UA (Ethernet-APL) |
Affected:
1.1.0
|
Date Public
2026-04-22 10:00
Credits
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CVE-2026-3207 (GCVE-0-2026-3207)
Vulnerability from cvelistv5 – Published: 2026-03-17 18:20 – Updated: 2026-03-17 18:49
VLAI
EPSS
VEX
Title
TIBCO BPM Enterprise Remote Code Execution (RCE) Vulnerability
Summary
Configuration issue in Java Management Extensions (JMX) in TIBCO BPM Enterprise version 4.x allows unauthorised access.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-306 - Missing authentication for critical function
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| TIBCO | TIBCO BPM Enterprise |
Affected:
4.3 , < 5
(Patch)
|
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CVE-2026-3194 (GCVE-0-2026-3194)
Vulnerability from cvelistv5 – Published: 2026-02-25 17:02 – Updated: 2026-02-25 18:43
VLAI
EPSS
VEX
Title
Chia Blockchain RPC Server Master Passphrase get_private_key missing authentication
Summary
A flaw has been found in Chia Blockchain 2.1.0. The affected element is the function send_transaction/get_private_key of the component RPC Server Master Passphrase Handler. This manipulation causes missing authentication. The attack can only be executed locally. The attack's complexity is rated as high. The exploitability is described as difficult. The exploit has been published and may be used. The vendor was informed early via email. A separate report via bugbounty was rejected with the reason "This is by design. The user is responsible for host security".
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.347750 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.347750 | signaturepermissions-required |
| https://vuldb.com/?submit.757201 | third-party-advisory |
| https://github.com/Danimlzg/chia-rpc-auth-bypass.git | broken-linkexploit |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Chia | Blockchain |
Affected:
2.1.0
|
Credits
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CVE-2026-3053 (GCVE-0-2026-3053)
Vulnerability from cvelistv5 – Published: 2026-02-24 01:32 – Updated: 2026-02-28 02:02
VLAI
EPSS
VEX
Title
DataLinkDC dinky OpenAPI Endpoint AppConfig.java addInterceptors missing authentication
Summary
A vulnerability was determined in DataLinkDC dinky up to 1.2.5. This affects the function addInterceptors of the file dinky-admin/src/main/java/org/dinky/configure/AppConfig.java of the component OpenAPI Endpoint. Executing a manipulation can lead to missing authentication. It is possible to launch the attack remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.347411 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.347411 | signaturepermissions-required |
| https://vuldb.com/?submit.757589 | third-party-advisory |
| https://github.com/AnalogyC0de/public_exp/issues/6 | issue-tracking |
| https://github.com/AnalogyC0de/public_exp/issues/… | exploitissue-tracking |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| DataLinkDC | dinky |
Affected:
1.2.0
Affected: 1.2.1 Affected: 1.2.2 Affected: 1.2.3 Affected: 1.2.4 Affected: 1.2.5 |
Credits
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CVE-2026-2844 (GCVE-0-2026-2844)
Vulnerability from cvelistv5 – Published: 2026-02-28 11:44 – Updated: 2026-03-02 15:23
VLAI
EPSS
VEX
Title
TimePictra Authentication Bypass Vulnerability
Summary
Missing Authentication for Critical Function vulnerability in Microchip TimePictra allows Configuration/Environment Manipulation.This issue affects TimePictra: from 11.0 through 11.3 SP2.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-306 - Missing Authentication for Critical Function
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.microchip.com/en-us/solutions/technol… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Microchip | TimePictra |
Affected:
11.0 , ≤ 11.3 SP2
(custom)
|
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CVE-2026-2756 (GCVE-0-2026-2756)
Vulnerability from cvelistv5 – Published: 2026-03-21 17:32 – Updated: 2026-03-23 16:40
VLAI
EPSS
VEX
Title
OmniPEMF NeoRhythm BLE missing authentication
Summary
A security vulnerability has been detected in OmniPEMF NeoRhythm up to 20260308. This affects an unknown function of the component BLE Interface. Such manipulation leads to missing authentication. The attack can only be initiated within the local network. This attack is characterized by high complexity. The exploitability is reported as difficult. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.352383 | vdb-entry |
| https://vuldb.com/?ctiid.352383 | signaturepermissions-required |
| https://vuldb.com/?submit.774937 | third-party-advisory |
| https://ab3j.radio/NeoRhythm.pdf | related |
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CVE-2026-2754 (GCVE-0-2026-2754)
Vulnerability from cvelistv5 – Published: 2026-03-06 15:05 – Updated: 2026-03-10 15:48
VLAI
EPSS
VEX
Summary
Navtor NavBox exposes sensitive configuration and operational data due to missing authentication on HTTP API endpoints. An unauthenticated remote attacker with network access to the device can execute HTTP GET requests to TCP port 8080 to retrieve internal network parameters including ECDIS & OT Information, device identifiers, and service status logs.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-306 - Missing Authentication for Critical Function
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://cydome.io/vulnerability-advisory-cve-2026… | technical-description |
| https://www.navtor.com/navtor-vendor-statement | vendor-advisory |
Impacted products
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Mitigation
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 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 MIT-15
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.
Mitigation
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 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 MIT-4.5
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 libraries with authentication capabilities such as OpenSSL or the ESAPI Authenticator [REF-45].
Mitigation
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].
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.