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.
4575 vulnerabilities reference this CWE, most recent first.
CVE-2026-86106 (GCVE-0-2026-86106)
Vulnerability from cvelistv5 – Published: 2026-09-16 10:12 – Updated: 2026-09-16 17:53
VLAI
EPSS
VEX
Title
Security Advisory 0179
Summary
An unauthenticated actor with network access to the private HA interconnect may trigger sensitive HA peer functions without verification. This could result in elevated command execution on Edge units where HA is enabled.
Severity
9.6 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-16 17:52 UTC
CWE
- CWE-306 - Missing Authentication for Critical Function
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.arista.com/en/support/advisories-noti… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Arista Networks | VeloCloud Edge |
Affected:
1.0.0.0 , < 5.2.0.0
(custom)
Affected: 5.2.0.0 , < 5.2.7.0 (custom) Affected: 6.1.0.0 , < 6.1.5.0 (custom) Affected: 6.4.0.0 , < 6.4.2.0 (custom) |
Date Public
2026-09-09 00:00
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CVE-2026-86064 (GCVE-0-2026-86064)
Vulnerability from cvelistv5 – Published: 2026-09-23 19:12 – Updated: 2026-09-23 19:29
VLAI
EPSS
VEX
Title
Klever-Go: /log controls global node logging
Summary
Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.20, the default-open GET /log WebSocket route configured in config/node/api.yaml and registered by network/api/api.go does not require authentication. The first client message is parsed as a logger Profile in network/api/logs/logSender.go and applied process-wide through Profile.Apply, allowing a remote client to change global log levels and formatting options until the connection closes. The same connection is registered as a log observer and can receive live process logs. An attacker can suppress normal logs, increase verbosity, distort operator visibility, and access operational information without credentials. This issue is fixed in version 1.7.20.
Severity
8.6 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-23 19:29 UTC
CWE
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/klever-io/klever-go/security/a… | x_refsource_CONFIRM |
| https://github.com/klever-io/klever-go/pull/74 | x_refsource_MISC |
| https://github.com/klever-io/klever-go/commit/a27… | x_refsource_MISC |
| https://github.com/klever-io/klever-go/releases/t… | x_refsource_MISC |
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CVE-2026-85889 (GCVE-0-2026-85889)
Vulnerability from cvelistv5 – Published: 2026-09-17 22:55 – Updated: 2026-10-07 14:56 Exclusively Hosted Service
VLAI
EPSS
VEX
Title
Azure AI Foundry Elevation of Privilege Vulnerability
Summary
Missing authentication for critical function in Azure AI Foundry allows an unauthorized attacker to elevate privileges over a network.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-18 00:00 UTC
CWE
- CWE-306 - Missing Authentication for Critical Function
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerabi… | vendor-advisorypatch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Microsoft | Azure AI Foundry |
Affected:
-
cpe:2.3:a:microsoft:azure_ai_foundry:*:*:*:*:*:*:*:* |
Date Public
2026-09-17 14:00
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CVE-2026-85702 (GCVE-0-2026-85702)
Vulnerability from cvelistv5 – Published: 2026-09-04 20:30 – Updated: 2026-09-08 13:00 Unsupported When Assigned
VLAI
EPSS
VEX
Title
ramon-victor freegpt-webui Backend Conversation API backend.py _conversation missing authentication
Summary
A security vulnerability has been detected in ramon-victor freegpt-webui up to 098db3dfeb41555c2ca9269df0f13e10ec1c35dc. Affected is the function _conversation of the file server/backend.py of the component Backend Conversation API. Such manipulation of the argument model leads to missing authentication. The attack may be launched remotely. The exploit has been disclosed publicly and may be used. This product operates on a rolling release basis, ensuring continuous delivery. Consequently, there are no version details for either affected or updated releases. This vulnerability only affects products that are no longer supported by the maintainer.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-08 12:59 UTC
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/398805 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/398805/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-85702 | third-party-advisory |
| https://vuldb.com/submit/895267 | third-party-advisory |
| https://gist.github.com/Galaxync/15cb5d1bf6ab110f… | exploit |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| ramon-victor | freegpt-webui |
Affected:
098db3dfeb41555c2ca9269df0f13e10ec1c35dc
cpe:2.3:a:ramon-victor:freegpt-webui:*:*:*:*:*:*:*:* |
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CVE-2026-85701 (GCVE-0-2026-85701)
Vulnerability from cvelistv5 – Published: 2026-09-04 20:15 – Updated: 2026-09-08 17:53 Unsupported When Assigned
VLAI
EPSS
VEX
Title
ramon-victor freegpt-webui Authentication Check __init__.py ChatCompletion.create missing authentication
Summary
A vulnerability has been found in ramon-victor freegpt-webui up to 098db3dfeb41555c2ca9269df0f13e10ec1c35dc. This issue affects the function ChatCompletion.create of the file g4f/__init__.py of the component Authentication Check. Such manipulation leads to missing authentication. The attack may be performed from remote. The exploit has been disclosed to the public and may be used. This product utilizes a rolling release system for continuous delivery, and as such, version information for affected or updated releases is not disclosed. This vulnerability only affects products that are no longer supported by the maintainer.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-08 17:53 UTC
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/398799 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/398799/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-85701 | third-party-advisory |
| https://vuldb.com/submit/895266 | third-party-advisory |
| https://gist.github.com/Galaxync/4e91898128de8fff… | exploit |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| ramon-victor | freegpt-webui |
Affected:
098db3dfeb41555c2ca9269df0f13e10ec1c35dc
cpe:2.3:a:ramon-victor:freegpt-webui:*:*:*:*:*:*:*:* |
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CVE-2026-85695 (GCVE-0-2026-85695)
Vulnerability from cvelistv5 – Published: 2026-09-04 14:32 – Updated: 2026-10-01 15:21
VLAI
EPSS
VEX
Title
FastChat Unauthenticated Worker Registration SSRF and Model Spoofing
Summary
FastChat contains an authentication bypass vulnerability in the /register_worker endpoint that allows unauthenticated attackers to register arbitrary worker addresses and perform server-side request forgery. Attackers can register malicious workers under victim model names to intercept user prompts, images, and responses, or probe internal network ports across the worker mesh.
Severity
9.4 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-04 15:04 UTC
CWE
- CWE-306 - Missing Authentication for Critical Function
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/lm-sys/FastChat/issues/3886 | issue-tracking |
| https://github.com/lm-sys/FastChat | product |
| https://github.com/lm-sys/FastChat/blob/v0.2.36/f… | technical-description |
| https://www.vulncheck.com/advisories/fastchat-una… | third-party-advisory |
Impacted products
Date Public
2026-06-12 00:00
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CVE-2026-85688 (GCVE-0-2026-85688)
Vulnerability from cvelistv5 – Published: 2026-09-04 14:32 – Updated: 2026-09-14 19:33
VLAI
EPSS
VEX
Title
TEN Framework 0.11.71 Unauthenticated File Read/Write via TMAN Designer
Summary
TEN Framework 0.11.71 contains unauthenticated arbitrary file read and write vulnerabilities in the TMAN Designer file-content API endpoints. Attackers can submit POST and PUT requests to the /api/designer/v1/file-content endpoints to read arbitrary files or write malicious content to system paths, enabling code execution through authorized_keys, cron files, or executable graph files.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-14 19:20 UTC
CWE
- CWE-306 - Missing Authentication for Critical Function
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/TEN-framework/ten-framework/is… | issue-tracking |
| https://github.com/TEN-framework/ten-framework | product |
| https://github.com/TEN-framework/ten-framework/bl… | technical-description |
| https://www.vulncheck.com/advisories/ten-framewor… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| TEN-framework | ten-framework |
Affected:
0 , ≤ 0.11.71
(custom)
|
Date Public
2026-06-12 00:00
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CVE-2026-85671 (GCVE-0-2026-85671)
Vulnerability from cvelistv5 – Published: 2026-09-04 14:32 – Updated: 2026-09-14 19:33
VLAI
EPSS
VEX
Title
QAnything 2.0.0 Unauthenticated Cross-User File Disclosure
Summary
QAnything 2.0.0 contains an authentication bypass vulnerability in the /api/local_doc_qa/get_file_base64 and /api/local_doc_qa/get_doc endpoints that allows unauthenticated attackers to access any uploaded file or document. Attackers can enumerate file identifiers through unauthenticated endpoints and retrieve base64-encoded files or parsed document chunks without ownership verification to disclose cross-tenant knowledge base content.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-14 19:20 UTC
CWE
- CWE-306 - Missing Authentication for Critical Function
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/netease-youdao/QAnything/issues/670 | issue-tracking |
| https://github.com/netease-youdao/QAnything | product |
| https://github.com/netease-youdao/QAnything/blob/… | technical-description |
| https://www.vulncheck.com/advisories/qanything-2.… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| netease-youdao | QAnything |
Affected:
0 , ≤ 2.0.0
(custom)
cpe:2.3:a:youdao:qanything:*:*:*:*:*:*:*:* |
Date Public
2026-07-13 00:00
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CVE-2026-85667 (GCVE-0-2026-85667)
Vulnerability from cvelistv5 – Published: 2026-09-04 14:32 – Updated: 2026-09-08 17:04
VLAI
EPSS
VEX
Title
xiaobei through 5.5.2 Unauthenticated Webhook Message Injection
Summary
xiaobei through 5.5.2 fails to implement authentication or signature validation on webhook endpoints, allowing unauthenticated attackers to inject arbitrary messages into the agent pipeline. Attackers can publish malicious messages via the /webhook_worktool handler and exploit unvalidated media URL fetching to perform server-side request forgery against internal services.
Severity
9.1 (Critical)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-08 17:04 UTC
CWE
- CWE-306 - Missing Authentication for Critical Function
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/TeamWiseFlow/xiaobei/issues/440 | issue-tracking |
| https://github.com/TeamWiseFlow/xiaobei | product |
| https://github.com/TeamWiseFlow/xiaobei/blob/v5.5… | technical-description |
| https://www.vulncheck.com/advisories/xiaobei-thro… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| TeamWiseFlow | xiaobei |
Affected:
0 , ≤ 5.5.2
(custom)
|
Date Public
2026-06-09 00:00
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CVE-2026-85663 (GCVE-0-2026-85663)
Vulnerability from cvelistv5 – Published: 2026-09-04 14:32 – Updated: 2026-09-04 15:28
VLAI
EPSS
VEX
Title
Aim 3.29.1 Remote Code Execution via Unauthenticated Method Dispatch
Summary
Aim 3.29.1 remote tracking server fails to authenticate requests and dispatches arbitrary methods through getattr without allowlist validation. Unauthenticated attackers can register clients, instantiate Repo resources, and invoke arbitrary methods to read experiments or delete runs.
Severity
9.8 (Critical)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-04 15:27 UTC
CWE
- CWE-306 - Missing Authentication for Critical Function
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/aimhubio/aim/issues/3412 | issue-tracking |
| https://github.com/aimhubio/aim | product |
| https://github.com/aimhubio/aim/blob/v3.29.1/aim/… | technical-description |
| https://github.com/aimhubio/aim/blob/v3.29.1/aim/… | technical-description |
| https://www.vulncheck.com/advisories/aim-3.29.1-r… | third-party-advisory |
Date Public
2026-06-09 00:00
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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.