Common Weakness Enumeration

CWE-287

Discouraged

Improper Authentication

Abstraction: Class · Status: Draft

API response cwe.mitre.org

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

2086 vulnerabilities reference this CWE, most recent first.

CVE-2026-57183 (GCVE-0-2026-57183)

Vulnerability from cvelistv5 – Published: 2026-10-15 18:32 – Updated: 2026-10-28 19:59
VLAI
Title
Scoold: Forged JWT Accepted as Admin API Token Allowing Unauthorized Access to Sensitive Configuration and Logs
Summary
Scoold is a Q&A and a knowledge sharing platform for teams. Prior to 1.69.1, checkApiAuth() in src/main/java/com/erudika/scoold/utils/ScooldUtils.java accepts a JWT signed with app_secret_key or para_secret_key for /api/config and /api/stats without requiring a registered API-key jti, and maps the request to the hardcoded administrative API_USER. The special endpoint checks run even when scoold.api_enabled is false. An attacker who obtains either signing secret can forge a token that reads sensitive configuration and server logs and reaches privileged configuration functionality, while an ordinary login-session token is not sufficient. This issue is fixed in version 1.69.1.
Severity
6.1 (Medium)
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:N
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-28 19:59 UTC
CWE
  • CWE-287 - Improper Authentication
Assigner
GitHub_M CNA
References
Impacted products
Vendor Product Version
Erudika scoold Affected: < 1.69.1
Create a notification for this product.
Show details on NVD website
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CVE-2026-57178 (GCVE-0-2026-57178)

Vulnerability from cvelistv5 – Published: 2026-09-24 17:25 – Updated: 2026-09-28 17:34
VLAI
Title
social-auth-core: VK App backend accepts unsigned callback data when auth_key is missing
Summary
Python Social Auth is a social authentication/registration mechanism. Prior to version 5.0.0, the `vk-app` backend accepted VK application callback data without verifying the callback signature when the `auth_key` parameter was omitted. Applications using this backend could treat unsigned attacker-controlled data as a verified VK identity. An attacker could choose callback fields such as `viewer_id`, `access_token`, `api_id`, and `api_result`, potentially allowing authentication as an arbitrary VK user ID. The issue affects only applications using the `vk-app` backend. The issue has been fixed in version 5.0.0 by requiring `auth_key` to be present and valid before callback data is trusted.
Severity
7.4 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-28 17:34 UTC
CWE
  • CWE-287 - Improper Authentication
  • CWE-347 - Improper Verification of Cryptographic Signature
Assigner
GitHub_M CNA
References
Impacted products
Show details on NVD website
To clipboard 

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CVE-2026-57175 (GCVE-0-2026-57175)

Vulnerability from cvelistv5 – Published: 2026-09-24 17:11 – Updated: 2026-10-05 15:33
VLAI
Title
social-auth-core has an Improper Authentication issue
Summary
Python Social Auth is a social authentication/registration mechanism. Prior to version 5.0.0, the SAML backend accepted SAML responses on the Assertion Consumer Service endpoint without verifying that they matched a previously issued `AuthnRequest`. Applications using SAML account association could allow an attacker with a valid account on a trusted IdP to link the attacker's SAML identity to a logged-in victim's local account. The attacker could then authenticate through SAML and gain access to the victim's account. The issue affects applications using the SAML backend together with authenticated account association. The issue has been fixed in version 5.0.0 by validating SAML responses against stored `AuthnRequest` IDs.
Severity
6.4 (Medium)
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-05 14:53 UTC
CWE
  • CWE-287 - Improper Authentication
Assigner
GitHub_M CNA
References
Impacted products
Show details on NVD website
To clipboard 

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CVE-2026-57148 (GCVE-0-2026-57148)

Vulnerability from cvelistv5 – Published: 2026-09-15 10:32 – Updated: 2026-09-16 17:45
VLAI
Title
praisonai-platform 0.1.4 still boots on the hardcoded JWT secret dev-secret-change-me (default-open production guard)
Summary
PraisonAI is a multi-agent teams system. Prior to 0.1.6, praisonai_platform/services/auth_service.py falls back to the public dev-secret-change-me HS256 signing key when PLATFORM_JWT_SECRET is unset, while the startup and token-issuance guards are disabled because PLATFORM_ENV also defaults to dev. An unauthenticated attacker can sign a JWT containing an attacker-chosen sub value, and AuthService._verify_token() accepts it as an authenticated identity, enabling user or workspace-owner impersonation when a target identifier is known. This vulnerability is fixed in praisonai-platform 0.1.6.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: poc Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-16 17:45 UTC
CWE
  • CWE-287 - Improper Authentication
  • CWE-798 - Use of Hard-coded Credentials
  • CWE-1188 - Insecure Default Initialization of Resource
Assigner
GitHub_M CNA
References
Impacted products
Show details on NVD website
To clipboard 

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CVE-2026-57134 (GCVE-0-2026-57134)

Vulnerability from cvelistv5 – Published: 2026-09-15 10:23 – Updated: 2026-09-15 12:37
VLAI
Title
PraisonAI MCPSecurity Basic/OAuth authentication policies accept invalid credentials without validation
Summary
PraisonAI is a multi-agent teams system. From 1.5.1 until 1.7.2, MCPSecurity.evaluatePolicy() in src/praisonai-ts/src/mcp/security.ts invokes the configured credential validator only when AuthMethod is api-key or bearer. Basic and OAuth policies accept any non-empty Authorization header without calling auth.validate(), then return an authenticated result, allowing callers with invalid credentials to access MCP tools and resources protected by those policies. This issue is fixed in version 1.7.2.
Severity
8.2 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-15 12:36 UTC
CWE
  • CWE-287 - Improper Authentication
  • CWE-288 - Authentication Bypass Using an Alternate Path or Channel
  • CWE-863 - Incorrect Authorization
Assigner
GitHub_M CNA
References
Impacted products
Vendor Product Version
MervinPraison PraisonAI Affected: >= 1.5.1, < 1.7.2
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CVE-2026-57132 (GCVE-0-2026-57132)

Vulnerability from cvelistv5 – Published: 2026-09-14 15:09 – Updated: 2026-09-16 15:09
VLAI
Title
PraisonAI: PRAISONAI_CALL_AUTH=disabled environment variable unconditionally disables authentication
Summary
PraisonAI is a multi-agent teams system. Prior to 4.6.62, setting PRAISONAI_CALL_AUTH to disabled makes verify_token accept requests to /api/v1/agents/{id}/invoke without CALL_SERVER_TOKEN authentication. Deployments that use the application's advertised opt-out can expose registered agents and their connected tools or private context to unauthenticated invocation. The vulnerability is fixed in 4.6.62.
Severity
8.2 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-16 15:09 UTC
CWE
  • CWE-287 - Improper Authentication
Assigner
GitHub_M CNA
References
Impacted products
Vendor Product Version
MervinPraison PraisonAI Affected: < 4.6.62
Create a notification for this product.
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CVE-2026-57107 (GCVE-0-2026-57107)

Vulnerability from cvelistv5 – Published: 2026-07-14 17:05 – Updated: 2026-11-01 17:32
VLAI
Title
Windows Admin Center Elevation of Privilege Vulnerability
Summary
Improper authentication in Windows Admin Center allows an authorized attacker to elevate privileges locally.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-15 04:01 UTC
CWE
  • CWE-287 - Improper Authentication
Assigner
microsoft CNA
References
Impacted products
Vendor Product Version
Microsoft Windows Admin Center Affected: 1809.0 , < 2.7.4 (custom)
    cpe:2.3:a:microsoft:windows_admin_center:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-07-14 14:00
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To clipboard 

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CVE-2026-56850 (GCVE-0-2026-56850)

Vulnerability from cvelistv5 – Published: 2026-07-30 06:02 – Updated: 2026-07-30 12:37
VLAI
Summary
A flaw in Node.js HTTPS Agent connection reuse can cause PFX object-array key collisions, allowing mutual TLS (mTLS) client identities to be reused across requests configured with different client certificates. This vulnerability affects Node.js **26.x**, **24.x**, and **22.x**.
Severity
4.1 (Medium)
CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-30 12:37 UTC
CWE
  • CWE-287 - Improper Authentication - Generic
Assigner
hackerone CNA
References
Impacted products
Vendor Product Version
nodejs node Affected: 26.5.0 , ≤ 26.5.0 (semver)
Affected: 24.18.0 , ≤ 24.18.0 (semver)
Affected: 22.23.1 , ≤ 22.23.1 (semver)
Create a notification for this product.
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CVE-2026-56837 (GCVE-0-2026-56837)

Vulnerability from cvelistv5 – Published: 2026-10-23 11:57 – Updated: 2026-10-23 21:05
VLAI
Title
PraisonAI LinearBot processes unsigned webhooks when LINEAR_WEBHOOK_SECRET is missing
Summary
PraisonAI is a multi-agent teams system. From version 4.6.56 to before version 4.6.59, PraisonAI's LinearBot starts a public webhook listener on 0.0.0.0 and treats LINEAR_WEBHOOK_SECRET as optional. When the secret is absent, startup only logs a warning and _handle_webhook() skips Linear-Signature verification entirely. An unauthenticated network caller who can reach the webhook endpoint can submit a forged Linear-Event: AgentSession request. The forged request is parsed, scheduled for background processing, dispatched to _handle_agent_session(), and passed into BotSessionManager.chat(). The bot then attempts to post the agent response back to Linear under the configured bot token. The PoV is offline and deterministic. It does not contact Linear. It calls the webhook handler directly, monkey-patches the outbound Linear comment path, and proves both sides of the boundary. This issue has been patched in version 4.6.59.
Severity
8.6 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-23 17:33 UTC
CWE
  • CWE-287 - Improper Authentication
  • CWE-306 - Missing Authentication for Critical Function
  • CWE-347 - Improper Verification of Cryptographic Signature
Assigner
GitHub_M CNA
References
Impacted products
Vendor Product Version
MervinPraison PraisonAI Affected: >= 4.6.56, < 4.6.59
Create a notification for this product.
Show details on NVD website
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CVE-2026-56836 (GCVE-0-2026-56836)

Vulnerability from cvelistv5 – Published: 2026-10-23 11:57 – Updated: 2026-10-30 16:05
VLAI
Title
PraisonAI recipe serve Typer command bypasses the non-localhost authentication guard
Summary
PraisonAI is a multi-agent teams system. From version 4.5.112 to before version 4.6.59, PraisonAI's installed console entrypoint is Typer-first. In current releases, the recipe command is registered in the Typer app and praisonai recipe serve dispatches to the deprecated Typer command in src/praisonai/praisonai/cli/commands/recipe.py. That Typer command can start the Recipe HTTP server on a non-localhost interface with no authentication. It prints a deprecation warning, and then launches the server. Because config.auth is absent, create_app() does not attach the API-key or JWT middleware. Unauthenticated requests can then reach the recipe API and, when enabled, /admin/reload. This issue has been patched in version 4.6.59.
Severity
8.2 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-30 16:05 UTC
CWE
  • CWE-287 - Improper Authentication
  • CWE-306 - Missing Authentication for Critical Function
  • CWE-862 - Missing Authorization
Assigner
GitHub_M CNA
References
Impacted products
Vendor Product Version
MervinPraison PraisonAI Affected: >= 4.5.112, < 4.6.59
Create a notification for this product.
Show details on NVD website
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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