Common Weakness Enumeration

CWE-287

Discouraged

Improper Authentication

Abstraction: Class · Status: Draft

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

7030 vulnerabilities reference this CWE, most recent first.

CVE-2026-33409 (GCVE-0-2026-33409)

Vulnerability from cvelistv5 – Published: 2026-03-24 18:11 – Updated: 2026-03-25 13:39

Title

Parse Server: Auth provider validation bypass on login via partial authData

Summary

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.52 and 9.6.0-alpha.41, an authentication bypass vulnerability allows an attacker to log in as any user who has linked a third-party authentication provider, without knowing the user's credentials. The attacker only needs to know the user's provider ID to gain full access to their account, including a valid session token. This affects Parse Server deployments where the server option allowExpiredAuthDataToken is set to true. The default value is false. This issue has been patched in versions 8.6.52 and 9.6.0-alpha.41.

Severity

7 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-03-25 13:39 UTC

CWE

CWE-287 - Improper Authentication

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7664 records in the last 180 days details

References

5 references

URL	Tags
https://github.com/parse-community/parse-server/s…	x_refsource_CONFIRM
https://github.com/parse-community/parse-server/p…	x_refsource_MISC
https://github.com/parse-community/parse-server/p…	x_refsource_MISC
https://github.com/parse-community/parse-server/c…	x_refsource_MISC
https://github.com/parse-community/parse-server/c…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
parse-community	parse-server	Affected: < 8.6.52 Affected: >= 9.0.0, < 9.6.0-alpha.41

Show details on NVD website

JSON

To clipboard

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CVE-2026-33322 (GCVE-0-2026-33322)

Vulnerability from cvelistv5 – Published: 2026-03-24 19:05 – Updated: 2026-03-25 14:28

Title

MinIO: JWT Algorithm Confusion in OIDC Authentication

Summary

MinIO is a high-performance object storage system. From RELEASE.2022-11-08T05-27-07Z to before RELEASE.2026-03-17T21-25-16Z, a JWT algorithm confusion vulnerability in MinIO's OpenID Connect authentication allows an attacker who knows the OIDC ClientSecret to forge arbitrary identity tokens and obtain S3 credentials with any policy, including consoleAdmin. This issue has been patched in RELEASE.2026-03-17T21-25-16Z.

Severity

9.2 (Critical)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-03-25 14:00 UTC

CWE

CWE-287 - Improper Authentication

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7664 records in the last 180 days details

References

1 reference

URL	Tags
https://github.com/minio/minio/security/advisorie…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
minio	minio	Affected: >= RELEASE.2022-11-08T05-27-07Z, < RELEASE.2026-03-17T21-25-16Z

Show details on NVD website

JSON

To clipboard

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CVE-2026-33314 (GCVE-0-2026-33314)

Vulnerability from cvelistv5 – Published: 2026-03-24 18:52 – Updated: 2026-03-26 19:52

Title

pyload-ng: Improper Authentication and Origin Validation Error

Summary

pyLoad is a free and open-source download manager written in Python. Prior to version 0.5.0b3.dev97, a Host Header Spoofing vulnerability in the @local_check decorator allows unauthenticated external attackers to bypass local-only restrictions. This grants access to the Click'N'Load API endpoints, enabling attackers to remotely queue arbitrary downloads, leading to Server-Side Request Forgery (SSRF) and Denial of Service (DoS). This issue has been patched in version 0.5.0b3.dev97.

Severity

6.5 (Medium)


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

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-03-26 19:33 UTC

CWE

CWE-287 - Improper Authentication
CWE-346 - Origin Validation Error

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7664 records in the last 180 days details

References

1 reference

URL	Tags
https://github.com/pyload/pyload/security/advisor…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
pyload	pyload	Affected: < 0.5.0b3.dev97

Show details on NVD website

JSON

To clipboard

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CVE-2026-33248 (GCVE-0-2026-33248)

Vulnerability from cvelistv5 – Published: 2026-03-25 20:18 – Updated: 2026-03-26 19:52

Title

NATS has mTLS verify_and_map authentication bypass via incorrect Subject DN matching

Summary

NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. Prior to versions 2.11.15 and 2.12.6, when using mTLS for client identity, with `verify_and_map` to derive a NATS identity from the client certificate's Subject DN, certain patterns of RDN would not be correctly enforced, allowing for authentication bypass. This does require a valid certificate from a CA already trusted for client certificates, and `DN` naming patterns which the NATS maintainers consider highly unlikely. So this is an unlikely attack. Nonetheless, administrators who have been very sophisticated in their `DN` construction patterns might conceivably be impacted. Versions 2.11.15 and 2.12.6 contain a fix. As a workaround, developers should review their CA issuing practices.

Severity

4.2 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-03-26 19:35 UTC

CWE

CWE-287 - Improper Authentication
CWE-295 - Improper Certificate Validation

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7664 records in the last 180 days details

References

2 references

URL	Tags
https://github.com/nats-io/nats-server/security/a…	x_refsource_CONFIRM
https://advisories.nats.io/CVE/secnote-2026-13.txt	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
nats-io	nats-server	Affected: < 2.11.15 Affected: >= 2.12.0-RC.1, < 2.12.6

Show details on NVD website

JSON

To clipboard

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          "name": "https://github.com/nats-io/nats-server/security/advisories/GHSA-3f24-pcvm-5jqc",
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          ],
          "url": "https://github.com/nats-io/nats-server/security/advisories/GHSA-3f24-pcvm-5jqc"
        },
        {
          "name": "https://advisories.nats.io/CVE/secnote-2026-13.txt",
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        "advisory": "GHSA-3f24-pcvm-5jqc",
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      },
      "title": "NATS has mTLS verify_and_map authentication bypass via incorrect Subject DN matching"
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CVE-2026-33246 (GCVE-0-2026-33246)

Vulnerability from cvelistv5 – Published: 2026-03-25 19:50 – Updated: 2026-03-28 01:42

Title

NATS: Leafnode connections allow spoofing of Nats-Request-Info identity headers

Summary

NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. The nats-server offers a `Nats-Request-Info:` message header, providing information about a request. This is supposed to provide enough information to allow for account/user identification, such that NATS clients could make their own decisions on how to trust a message, provided that they trust the nats-server as a broker. A leafnode connecting to a nats-server is not fully trusted unless the system account is bridged too. Thus identity claims should not have propagated unchecked. Prior to versions 2.11.15 and 2.12.6, NATS clients relying upon the Nats-Request-Info: header could be spoofed. This does not directly affect the nats-server itself, but the CVSS Confidentiality and Integrity scores are based upon what a hypothetical client might choose to do with this NATS header. Versions 2.11.15 and 2.12.6 contain a fix. No known workarounds are available.

Severity

6.4 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-03-28 01:39 UTC

CWE

CWE-287 - Improper Authentication
CWE-290 - Authentication Bypass by Spoofing

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7664 records in the last 180 days details

References

2 references

URL	Tags
https://github.com/nats-io/nats-server/security/a…	x_refsource_CONFIRM
https://advisories.nats.io/CVE/secnote-2026-08.txt	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
nats-io	nats-server	Affected: < 2.11.15 Affected: >= 2.12.0-RC.1, < 2.12.6

Show details on NVD website

JSON

To clipboard

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CVE-2026-33215 (GCVE-0-2026-33215)

Vulnerability from cvelistv5 – Published: 2026-03-24 20:55 – Updated: 2026-03-25 13:05

Title

NATS is vulnerable to MQTT hijacking via Client ID

Summary

NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. The nats-server provides an MQTT client interface. Prior to versions 2.11.15 and 2.12.5, Sessions and Messages can by hijacked via MQTT Client ID malfeasance. Versions 2.11.15 and 2.12.5 patch the issue. No known workarounds are available.

Severity

6.5 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-03-25 13:03 UTC

CWE

CWE-287 - Improper Authentication
CWE-488 - Exposure of Data Element to Wrong Session

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7664 records in the last 180 days details

References

2 references

URL	Tags
https://github.com/nats-io/nats-server/security/a…	x_refsource_CONFIRM
https://advisories.nats.io/CVE/secnote-2026-06.tx	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
nats-io	nats-server	Affected: < 2.11.15 Affected: >= 2.12.0-RC.1, < 2.12.6

Show details on NVD website

JSON

To clipboard

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CVE-2026-33175 (GCVE-0-2026-33175)

Vulnerability from cvelistv5 – Published: 2026-04-03 21:56 – Updated: 2026-04-07 16:01

Title

OAuthenticator: Authentication Bypass in Auth0OAuthenticator via Unverified Email Claims

Summary

OAuthenticator is software that allows OAuth2 identity providers to be plugged in and used with JupyterHub. Prior to version 17.4.0, an authentication bypass vulnerability in oauthenticator allows an attacker with an unverified email address on an Auth0 tenant to login to JupyterHub. When email is used as the usrname_claim, this gives users control over their username and the possibility of account takeover. This issue has been patched in version 17.4.0.

Severity

8.8 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-04-07 15:48 UTC

CWE

CWE-287 - Improper Authentication
CWE-290 - Authentication Bypass by Spoofing

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7664 records in the last 180 days details

References

3 references

URL	Tags
https://github.com/jupyterhub/oauthenticator/secu…	x_refsource_CONFIRM
https://github.com/jupyterhub/oauthenticator/comm…	x_refsource_MISC
https://github.com/jupyterhub/oauthenticator/rele…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
jupyterhub	oauthenticator	Affected: < 17.4.0

Show details on NVD website

JSON

To clipboard

{
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CVE-2026-33124 (GCVE-0-2026-33124)

Vulnerability from cvelistv5 – Published: 2026-03-20 09:16 – Updated: 2026-03-20 13:47

Title

Frigate has insecure password change functionality

Summary

Frigate is a network video recorder (NVR) with realtime local object detection for IP cameras. Versions prior to 0.17.0-beta1 allow any authenticated user to change their own password without verifying the current password through the /users/{username}/password endpoint. Changing a password does not invalidate existing JWT tokens, and there is no validation of password strength. If an attacker obtains a valid session token (e.g., via accidentally exposed JWT, stolen cookie, XSS, compromised device, or sniffing over HTTP), they can change the victim’s password and gain permanent control of the account. Since password changes do not invalidate existing JWT tokens, session hijacks persist even after a password reset. Additionally, the lack of password strength validation exposes accounts to brute-force attacks. This issue has been resolved in version 0.17.0-beta1.

Severity

8.6 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-03-20 13:46 UTC

CWE

CWE-287 - Improper Authentication

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7664 records in the last 180 days details

References

2 references

URL	Tags
https://github.com/blakeblackshear/frigate/securi…	x_refsource_CONFIRM
https://github.com/blakeblackshear/frigate/commit…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
blakeblackshear	frigate	Affected: < 0.17.0-beta1

Show details on NVD website

JSON

To clipboard

{
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          "value": "Frigate is a network video recorder (NVR) with realtime local object detection for IP cameras. Versions prior to 0.17.0-beta1 allow any authenticated user to change their own password without verifying the current password through the /users/{username}/password endpoint. Changing a password does not invalidate existing JWT tokens, and there is no validation of password strength. If an attacker obtains a valid session token (e.g., via accidentally exposed JWT, stolen cookie, XSS, compromised device, or sniffing over HTTP), they can change the victim\u2019s password and gain permanent control of the account. Since password changes do not invalidate existing JWT tokens, session hijacks persist even after a password reset. Additionally, the lack of password strength validation exposes accounts to brute-force attacks. This issue has been resolved in version 0.17.0-beta1."
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CVE-2026-33117 (GCVE-0-2026-33117)

Vulnerability from cvelistv5 – Published: 2026-05-12 16:58 – Updated: 2026-08-10 15:12

Title

Azure SDK for Java Security Feature Bypass Vulnerability

Summary

The Java Key Vault Keys library in the Azure SDK for Java contains an issue in the local cryptographic verification path where authentication tag comparison was implemented incorrectly. In affected applications that use the vulnerable local cryptography path, specially crafted encrypted input may bypass integrity verification checks. Operations delegated to the Key Vault service are not affected. The issue is addressed in version 4.10.6.

Severity

9.1 (Critical)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-13 03:57 UTC

CWE

CWE-287 - Improper Authentication
CWE-347 - Improper Verification of Cryptographic Signature

Assigner

microsoft CNA under the mitre root

CNA scorecard B 82/100 over 3949 records in the last 180 days details

References

1 reference

URL	Tags
https://msrc.microsoft.com/update-guide/vulnerabi…	vendor-advisorypatch

Impacted products

1 product

Vendor	Product	Version
Microsoft	Azure SDK for Java	Affected: 1.0.0 , < 4.10.6 (custom) cpe:2.3:a:microsoft:azure_sdk_for_java::::::::

Date Public

2026-05-12 14:00

Show details on NVD website

JSON

To clipboard

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CVE-2026-33042 (GCVE-0-2026-33042)

Vulnerability from cvelistv5 – Published: 2026-03-18 21:54 – Updated: 2026-03-20 18:11

Title

Parse Server affected by empty authData bypassing credential requirement on signup

Summary

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.6.0-alpha.29 and 8.6.49, a user can sign up without providing credentials by sending an empty `authData` object, bypassing the username and password requirement. This allows the creation of authenticated sessions without proper credentials, even when anonymous users are disabled. The fix in 9.6.0-alpha.29 and 8.6.49 ensures that empty or non-actionable `authData` is treated the same as absent `authData` for the purpose of credential validation on new user creation. Username and password are now required when no valid auth provider data is present. As a workaround, use a Cloud Code `beforeSave` trigger on the `_User` class to reject signups where `authData` is empty and no username/password is provided.

Severity

6.9 (Medium)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-03-20 17:10 UTC

CWE

CWE-287 - Improper Authentication

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7664 records in the last 180 days details

References

3 references

URL	Tags
https://github.com/parse-community/parse-server/s…	x_refsource_CONFIRM
https://github.com/parse-community/parse-server/p…	x_refsource_MISC
https://github.com/parse-community/parse-server/p…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
parse-community	parse-server	Affected: >= 9.0.0, < 9.6.0-alpha.29 Affected: < 8.6.49

Show details on NVD website

JSON

To clipboard

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Mitigation

Architecture and Design

Strategy: Libraries or Frameworks

Use an authentication framework or library such as the OWASP ESAPI Authentication feature.

CAPEC-114: Authentication Abuse

An attacker obtains unauthorized access to an application, service or device either through knowledge of the inherent weaknesses of an authentication mechanism, or by exploiting a flaw in the authentication scheme's implementation. In such an attack an authentication mechanism is functioning but a carefully controlled sequence of events causes the mechanism to grant access to the attacker.

CAPEC-115: Authentication Bypass

An attacker gains access to application, service, or device with the privileges of an authorized or privileged user by evading or circumventing an authentication mechanism. The attacker is therefore able to access protected data without authentication ever having taken place.

CAPEC-151: Identity Spoofing

Identity Spoofing refers to the action of assuming (i.e., taking on) the identity of some other entity (human or non-human) and then using that identity to accomplish a goal. An adversary may craft messages that appear to come from a different principle or use stolen / spoofed authentication credentials.

CAPEC-194: Fake the Source of Data

An adversary takes advantage of improper authentication to provide data or services under a falsified identity. The purpose of using the falsified identity may be to prevent traceability of the provided data or to assume the rights granted to another individual. One of the simplest forms of this attack would be the creation of an email message with a modified "From" field in order to appear that the message was sent from someone other than the actual sender. The root of the attack (in this case the email system) fails to properly authenticate the source and this results in the reader incorrectly performing the instructed action. Results of the attack vary depending on the details of the attack, but common results include privilege escalation, obfuscation of other attacks, and data corruption/manipulation.

CAPEC-22: Exploiting Trust in Client

An attack of this type exploits vulnerabilities in client/server communication channel authentication and data integrity. It leverages the implicit trust a server places in the client, or more importantly, that which the server believes is the client. An attacker executes this type of attack by communicating directly with the server where the server believes it is communicating only with a valid client. There are numerous variations of this type of attack.

CAPEC-57: Utilizing REST's Trust in the System Resource to Obtain Sensitive Data

This attack utilizes a REST(REpresentational State Transfer)-style applications' trust in the system resources and environment to obtain sensitive data once SSL is terminated.

CAPEC-593: Session Hijacking

This type of attack involves an adversary that exploits weaknesses in an application's use of sessions in performing authentication. The adversary is able to steal or manipulate an active session and use it to gain unathorized access to the application.

CAPEC-633: Token Impersonation

An adversary exploits a weakness in authentication to create an access token (or equivalent) that impersonates a different entity, and then associates a process/thread to that that impersonated token. This action causes a downstream user to make a decision or take action that is based on the assumed identity, and not the response that blocks the adversary.

CAPEC-650: Upload a Web Shell to a Web Server

By exploiting insufficient permissions, it is possible to upload a web shell to a web server in such a way that it can be executed remotely. This shell can have various capabilities, thereby acting as a "gateway" to the underlying web server. The shell might execute at the higher permission level of the web server, providing the ability the execute malicious code at elevated levels.

CAPEC-94: Adversary in the Middle (AiTM)

An adversary targets the communication between two components (typically client and server), in order to alter or obtain data from transactions. A general approach entails the adversary placing themself within the communication channel between the two components.

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