Common Weakness Enumeration

CWE-306

Allowed

Missing 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.

4062 vulnerabilities reference this CWE, most recent first.

CVE-2026-78154 (GCVE-0-2026-78154)

Vulnerability from cvelistv5 – Published: 2026-08-23 23:30 – Updated: 2026-08-25 08:26

** REJECT ** DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: none. Reason: This candidate was withdrawn by its CNA. Further investigation showed that it was not a security issue. Notes: The endpoint is public on purpose and the invitation code is the credential. This is the standalone SDK onboarding path for mobile apps that have no backend of their own: a developer generates a code via the authenticated dashboard endpoint, the user types it into the app, and it's redeemed for SDK-scoped tokens.

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CVE-2026-77977 (GCVE-0-2026-77977)

Vulnerability from cvelistv5 – Published: 2026-08-27 21:56 – Updated: 2026-08-31 15:41

Title

Ebyte NA111-M Missing Authentication for Critical Function

Summary

Ebyte gateway product's vendor configuration utility does not require authentication before allowing certain disruptive administrative actions when default credentials remain configured. An unauthenticated attacker on the adjacent network could reboot the device or restore factory settings, resulting in a loss of configuration and service availability.

Severity

8.1 (High)


                        
                          CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

7.2 (High)


                        
                          CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-28 13:48 UTC

CWE

CWE-306

Assigner

icscert icscert root

References

2 references

URL	Tags
https://www.cisa.gov/news-events/ics-advisories/i…
https://github.com/cisagov/CSAF/blob/develop/csaf…

Impacted products

1 product

Vendor	Product	Version
Ebyte	Ebyte NA111-M Firmware	Affected: 9013-2-17

Credits

Jithin Nambiar reported this vulnerability to CISA.

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JSON

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CVE-2026-77915 (GCVE-0-2026-77915)

Vulnerability from cvelistv5 – Published: 2026-08-24 16:11 – Updated: 2026-08-29 11:47 X_Open Source

Title

rConfig Core 8.0.0 < 8.2.10 Unauthorized Admin Registration via web.php

Summary

rConfig Core 8.0.0 before 8.2.10 contains an authentication bypass vulnerability that allows unauthenticated attackers to self-register accounts with full Administrator privileges due to a duplicate bare Auth::routes() call in routes/web.php that re-enables the POST /register route after it was explicitly disabled. Attackers can register a new account that is immediately authenticated with Admin-level access because the registration controller does not assign a role and the users.role column defaults to Admin, enabling access to stored device credentials, user data, and API token issuance.

Severity

9.3 (Critical)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

9.8 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-26 16:07 UTC

CWE

CWE-306 - Missing Authentication for Critical Function
CWE-1188 - Initialization of a Resource with an Insecure Default

Assigner

VulnCheck mitre root

References

3 references

URL	Tags
https://github.com/rconfig/rconfig/security/advis…	vendor-advisory
https://github.com/rconfig/rconfig/releases#relea…	release-notes
https://www.vulncheck.com/advisories/rconfig-unau…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
rconfig	rconfig	Affected: 8.0.0 , < 8.2.10 (semver)

Date Public

2026-08-10 00:00

Credits

Adam Nurudini (@QwesiRED)

Show details on NVD website

JSON

To clipboard

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CVE-2026-77644 (GCVE-0-2026-77644)

Vulnerability from cvelistv5 – Published: 2026-08-20 21:54 – Updated: 2026-08-26 14:15

Title

Critical Bypass Access Control Vulnerability Reported for Windchill Risk and Reliability (WRR) Enterprise Edition

Summary

A critical bypass access control vulnerability has been reported in PTC Windchill Risk and Reliability (WRR) Enterprise Edition.

Severity

9.3 (Critical)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/RE:M/U:Red

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-22 03:56 UTC

CWE

CWE-306 - Missing authentication for critical function
CWE-620 - Unverified password change

Assigner

PTC icscert root

References

1 reference

URL	Tags
https://www.ptc.com/en/support/article/CS474818	vendor-advisorypermissions-required

Impacted products

1 product

Vendor	Product	Version
PTC	Windchill Risk and Reliability Enterprise Edition (Formerly Relex)	Affected: 11.1 , ≤ 13.1 (custom)

Credits

Romain J. of Devoteam - Purple

Show details on NVD website

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To clipboard

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CVE-2026-76640 (GCVE-0-2026-76640)

Vulnerability from cvelistv5 – Published: 2026-08-27 17:52 – Updated: 2026-08-28 15:53

Title

Unitree G1 EDU 1.5.2 BLE GATT RCE via WiFi Provisioning Stack

Summary

Unitree G1 EDU firmware through 1.5.2 contains multiple chained vulnerabilities in the BLE GATT server and WiFi provisioning stack that allow unauthenticated proximate attackers to achieve root code execution without pairing or credentials by exploiting an unquoted heredoc variable in the WiFi provisioning script and a buffer overflow in the SSID chunk accumulator. Attackers can send crafted BLE writes to overflow a fixed BSS buffer across BLE connections, corrupting an adjacent mainloop function pointer dispatch entry that is subsequently invoked by the cleanup path passing attacker-controlled data to system() as uid 0.

Severity

7.7 (High)


                        
                          CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

7.5 (High)


                        
                          CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-28 15:53 UTC

CWE

CWE-787 - Out-of-bounds Write
CWE-306 - Missing Authentication for Critical Function

Assigner

VulnCheck mitre root

References

3 references

URL	Tags
https://boschko.ca/g1-ble-rce/	technical-descriptionexploit
https://github.com/OlivierLaflamme/UniBLEed	exploit
https://www.vulncheck.com/advisories/unitree-g1-e…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
Unitree Robotics	G1 EDU	Affected: 0 , ≤ 1.5.2 (semver)

Date Public

2026-08-27 00:00

Credits

Olivier Laflamme

Show details on NVD website

JSON

To clipboard

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CVE-2026-76639 (GCVE-0-2026-76639)

Vulnerability from cvelistv5 – Published: 2026-08-27 17:51 – Updated: 2026-08-31 18:56

Title

Unitree G1 EDU 1.5.2 Unauthenticated RCE via DDS Bridge and Path Traversal

Summary

Unitree G1 EDU firmware through 1.5.2 contains an unauthenticated remote code execution vulnerability that allows network-adjacent attackers to execute arbitrary commands as root by chaining three weaknesses: an unauthenticated WebRTC-to-DDS bridge on TCP port 9991, a static AES-128 key stored with world-readable permissions, and a path traversal flaw in the chat_go knowledge upload API. Attackers can publish DDS control messages to restart the bashrunner service, plant a malicious payload in its script execution directory via path traversal, and trigger execution of that payload as uid 0 through the bashrunner shell subprocess.

Severity

8.7 (High)


                        
                          CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

8.8 (High)


                        
                          CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-31 16:06 UTC

CWE

CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-306 - Missing Authentication for Critical Function

Assigner

VulnCheck mitre root

References

3 references

URL	Tags
https://boschko.ca/g1-ble-rce/	technical-descriptionexploit
https://github.com/OlivierLaflamme/UniBLEed	exploit
https://www.vulncheck.com/advisories/unitree-g1-e…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
Unitree Robotics	G1 EDU	Affected: 0 , ≤ 1.5.2 (semver)

Date Public

2026-08-27 00:00

Credits

Olivier Laflamme

Show details on NVD website

JSON

To clipboard

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CVE-2026-76355 (GCVE-0-2026-76355)

Vulnerability from cvelistv5 – Published: 2026-08-19 21:34 – Updated: 2026-08-26 15:20

Title

Unauthenticated Information Disclosure through an Edge Processor Service Endpoint in Splunk Enterprise

Summary

In Splunk Enterprise 10.4 versions below 10.4.2, an unauthenticated user could retrieve the information contained in Edge Processor pipeline configurations through a Representational State Transfer (REST) API endpoint when Edge Processor is turned on. The vulnerability does not affect versions prior to 10.4. The vulnerability exists because the Edge Processor service endpoint lacks authentication controls. For more information see System architecture of the Edge Processor solution (https://help.splunk.com/en/splunk-enterprise/process-data-at-the-edge/use-edge-processors-for-splunk-enterprise/10.4/how-the-edge-processor-solution-works/system-architecture-of-the-edge-processor-solution) in the Splunk documentation.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-26 15:17 UTC

CWE

CWE-306 - The software does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.

Assigner

cisco mitre root

References

1 reference

URL	Tags
https://advisory.splunk.com/advisories/SVD-2026-0801

Impacted products

1 product

Vendor	Product	Version
Splunk	Splunk Enterprise	Affected: 10.4 , < 10.4.2 (custom)

Date Public

2026-08-19 00:00

Credits

Gabriel Nitu, Splunk

Show details on NVD website

JSON

To clipboard

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CVE-2026-76157 (GCVE-0-2026-76157)

Vulnerability from cvelistv5 – Published: 2026-08-21 01:47 – Updated: 2026-08-21 13:08

Title

Datiphy Data Management Center - Missing Authentication for Critical Function

Summary

Missing authentication for a critical function in the upload API endpoint of Datiphy Data Management Center from v8.3.0 through v8.5.1 allows an unauthenticated remote attacker to upload arbitrary files to the server's configured upload directory.

Severity

8.8 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-21 13:07 UTC

CWE

CWE-306 - Missing authentication for critical function

Assigner

ZUSO ART

References

1 reference

URL	Tags
https://zuso.ai/advisory	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
Datiphy Inc.	Data Management Center	Affected: v8.3.0 , ≤ v8.5.1 (custom)

Show details on NVD website

JSON

To clipboard

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CVE-2026-76137 (GCVE-0-2026-76137)

Vulnerability from cvelistv5 – Published: 2026-08-21 02:02 – Updated: 2026-08-21 12:54

Summary

Missing authentication for critical function vulnerability exists in VOCALOID6. Any process running under the same local user account as a running VOCALOID6 Editor instance may escalate privileges via a local named pipe.

Severity

3.3 (Low)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

4.8 (Medium)


                        
                          CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-21 12:53 UTC

CWE

CWE-306 - Missing authentication for critical function

Assigner

jpcert jpcert root

References

2 references

URL	Tags
https://www.vocaloid.com/en/support/download/
https://jvn.jp/en/vu/JVNVU90210212/

Impacted products

1 product

Vendor	Product	Version
Yamaha Corporation	VOCALOID6	Affected: 0 , ≤ 6.13.1 (semver)

Show details on NVD website

JSON

To clipboard

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CVE-2026-75919 (GCVE-0-2026-75919)

Vulnerability from cvelistv5 – Published: 2026-08-19 14:01 – Updated: 2026-08-19 15:30

Title

phpMyFAQ before 4.1.7 Authentication Bypass via Setup API

Summary

phpMyFAQ before 4.1.7 contains an authentication bypass vulnerability in SetupController that allows unauthenticated attackers to run database migrations and create configuration backups when maintenance mode is enabled. Attackers can call POST /api/setup/update-database and POST /api/setup/backup endpoints to execute database updates, disable maintenance mode, and extract database credentials from generated ZIP archives.

Severity

6.9 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-19 15:30 UTC

CWE

CWE-306 - Missing Authentication for Critical Function

Assigner

VulnCheck mitre root

References

2 references

URL	Tags
https://github.com/thorsten/phpMyFAQ/security/adv…	vendor-advisory
https://www.vulncheck.com/advisories/phpmyfaq-bef…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
thorsten	phpMyFAQ	Affected: 0 , < 4.1.7 (semver) Unaffected: 4.1.7 (semver) cpe:2.3:a:phpmyfaq:phpmyfaq::::::::

Date Public

2026-08-04 00:00

Credits

kevinnivekkevin

Show details on NVD website

JSON

To clipboard

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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.

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