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.

6649 vulnerabilities reference this CWE, most recent first.

CVE-2026-55533 (GCVE-0-2026-55533)

Vulnerability from cvelistv5 – Published: 2026-08-25 15:15 – Updated: 2026-08-25 16:12

Title

PraisonAI: Authentication fail-open in Recipe server allows unauthenticated access when API key or JWT auth is configured without a secret

Summary

PraisonAI is a multi-agent teams system. Prior to praisonai 4.6.58, create_auth_middleware() allows requests when auth=api-key lacks PRAISONAI_API_KEY or JWT authentication lacks PRAISONAI_JWT_SECRET. An externally bound Recipe server can therefore accept unauthenticated POST /v1/recipes/run requests despite authentication being enabled. This issue is fixed in version 4.6.58.

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 2026-08-25 16:12 UTC

CWE

CWE-287 - Improper Authentication
CWE-306 - Missing Authentication for Critical Function

Assigner

GitHub_M mitre root

References

3 references

URL	Tags
https://github.com/MervinPraison/PraisonAI/securi…	x_refsource_CONFIRM
https://github.com/MervinPraison/PraisonAI/commit…	x_refsource_MISC
https://github.com/MervinPraison/PraisonAI/releas…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
MervinPraison	PraisonAI	Affected: < 4.6.58

Show details on NVD website

JSON

To clipboard

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CVE-2026-55445 (GCVE-0-2026-55445)

Vulnerability from cvelistv5 – Published: 2026-07-15 21:20 – Updated: 2026-07-18 02:37

Title

Qinglong: Incomplete fix for CVE-2026-3965: Improper Authentication

Summary

Qinglong is a timed task management platform supporting Python3, JavaScript, Shell, and Typescript. Prior to 2.20.1, the init guard middleware in back/loaders/express.ts checks /api/user/init but not /open/user/init, while rewrite('/open/*', '/api/$1') rewrites the whitelisted /open/* path after JWT authentication and the guard have passed; an unauthenticated attacker can send PUT /open/user/init to reset administrator credentials on an initialized instance. This issue is fixed in 2.20.1.

Severity

9.3 (Critical)


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

SSVC

Exploitation: poc Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-18 02:36 UTC

CWE

CWE-287 - Improper Authentication

Assigner

GitHub_M mitre root

References

3 references

URL	Tags
https://github.com/whyour/qinglong/security/advis…	x_refsource_CONFIRM
https://github.com/whyour/qinglong/pull/2941	x_refsource_MISC
https://github.com/whyour/qinglong/commit/6bec52d…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
whyour	qinglong	Affected: < 2.20.1

Show details on NVD website

JSON

To clipboard

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CVE-2026-55377 (GCVE-0-2026-55377)

Vulnerability from cvelistv5 – Published: 2026-07-10 19:57 – Updated: 2026-07-13 16:20

Title

Logto: Account Center MFA management step-up bypass via WebAuthn registration verification

Summary

Logto is the modern, open-source auth infrastructure for SaaS and AI apps. Prior to 1.41.0, Logto's Account Center step-up check accepted any active verification record that belonged to the current user and had isVerified === true. A WebAuthn registration verification record for binding a new passkey could be created and verified with only an existing Account API bearer token, then sent in the logto-verification-id header and treated as identityVerified=true by Account Center routes, allowing MFA factor management without proving possession of an existing password, identifier, or MFA factor. This issue is fixed in version 1.41.0.

Severity

8.1 (High)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-13 16:20 UTC

CWE

CWE-287 - Improper Authentication

Assigner

GitHub_M mitre root

References

4 references

URL	Tags
https://github.com/logto-io/logto/security/adviso…	x_refsource_CONFIRM
https://github.com/logto-io/logto/pull/9110	x_refsource_MISC
https://github.com/logto-io/logto/commit/f56255a7…	x_refsource_MISC
https://github.com/logto-io/logto/releases/tag/v1.41.0	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
logto-io	logto	Affected: < 1.41.0

Show details on NVD website

JSON

To clipboard

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CVE-2026-55235 (GCVE-0-2026-55235)

Vulnerability from cvelistv5 – Published: 2026-09-14 15:53 – Updated: 2026-09-16 15:14

Title

langgraph-api: Relative webhook targets in LangGraph Server can reach in-process routes without authentication

Summary

langgraph-api implements the LangGraph API for rapid development and testing. Prior to 0.10.0, langgraph-api permits a run or cron to specify a relative webhook target that is delivered through an in-process loopback transport, and the authentication middleware treats that transport as internal without applying the authentication context used for external requests. In deployments that rely on per-user authorization to separate threads and runs, an authenticated user can direct a webhook to the server's own thread and run routes, allowing creation of a run on or modification of another user's thread and limited incorporation of the targeted thread's metadata into the created run record. The affected path requires webhook targets and per-user authorization boundaries; deployments that deliberately re-enable loopback delivery should restrict it to controlled same-process routes because those webhooks remain unauthenticated. This issue is fixed in version 0.10.0.

Severity

5.9 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-16 15:14 UTC

CWE

CWE-287 - Improper Authentication

Assigner

GitHub_M mitre root

References

2 references

URL	Tags
https://github.com/langchain-ai/helm/security/adv…	x_refsource_CONFIRM
https://github.com/langchain-ai/docs/blob/7b70fba…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
langchain-ai	langgraph-api	Affected: < 0.10.0

Show details on NVD website

JSON

To clipboard

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CVE-2026-55076 (GCVE-0-2026-55076)

Vulnerability from cvelistv5 – Published: 2026-07-07 22:23 – Updated: 2026-07-08 14:03

Title

Coder's OIDC email_verified type coercion bypass enables account takeover via unverified email linking

Summary

Coder allows organizations to provision remote development environments via Terraform. Prior to versions 2.29.7, 2.32.7, 2.33.8, and 2.34.2, Coder's OIDC callback checked `email_verified` with a direct Go `bool` type assertion. When an IdP returned the claim as a non-boolean (for example the string `"false"`) or omitted it, the assertion failed open and the email was treated as verified. Combined with an unconditional email-based account fallback, this enabled account takeover. The fix in versions 2.29.7, 2.32.7, 2.33.8, and 2.34.2 coerces `email_verified` across bool, string and numeric types (fail-closed) and blocks the email fallback when the matched user already has a different linked IdP subject. As a workaround, ensure the IdP returns `email_verified` as a native JSON boolean. The email-fallback linking issue has no configuration workaround; upgrading is required.

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: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-08 14:03 UTC

CWE

CWE-287 - Improper Authentication
CWE-704 - Incorrect Type Conversion or Cast

Assigner

GitHub_M mitre root

References

7 references

URL	Tags
https://github.com/coder/coder/security/advisorie…	x_refsource_CONFIRM
https://github.com/coder/coder/pull/25712	x_refsource_MISC
https://github.com/coder/coder/pull/25713	x_refsource_MISC
https://github.com/coder/coder/releases/tag/v2.29.17	x_refsource_MISC
https://github.com/coder/coder/releases/tag/v2.32.7	x_refsource_MISC
https://github.com/coder/coder/releases/tag/v2.33.8	x_refsource_MISC
https://github.com/coder/coder/releases/tag/v2.34.2	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
coder	coder	Affected: >= 2.34.0, < 2.34.2 Affected: >= 2.33.0, < 2.33.8 Affected: >= 2.30.0, < 2.32.7 Affected: < 2.29.17

Show details on NVD website

JSON

To clipboard

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CVE-2026-55075 (GCVE-0-2026-55075)

Vulnerability from cvelistv5 – Published: 2026-07-07 21:33 – Updated: 2026-07-08 13:03

Title

Coder vulnerable to OIDC account takeover via email-based user matching and email_verified bypass

Summary

Coder allows organizations to provision remote development environments via Terraform. Prior to versions 2.29.7, 2.32.7, 2.33.8, and 2.34.2, two flaws in Coder's OIDC login chained into account takeover. Email-based user matching fell back to linking by email without checking for an existing link to a different IdP subject and the `email_verified` claim was only enforced when present as a boolean `false` so an absent or non-boolean claim was treated as verified. The fix in versions 2.29.7, 2.32.7, 2.33.8, and 2.34.2 restricts the email fallback to first-time and legacy linking and defaults `email_verified` to false when the claim is absent or of an unexpected type. As a workaround, configure the OIDC provider to disallow self-registration or to require email verification before issuing tokens.

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 2026-07-08 13:02 UTC

CWE

CWE-287 - Improper Authentication
CWE-289 - Authentication Bypass by Alternate Name

Assigner

GitHub_M mitre root

References

7 references

URL	Tags
https://github.com/coder/coder/security/advisorie…	x_refsource_CONFIRM
https://github.com/coder/coder/pull/25712	x_refsource_MISC
https://github.com/coder/coder/pull/25713	x_refsource_MISC
https://github.com/coder/coder/releases/tag/v2.29.17	x_refsource_MISC
https://github.com/coder/coder/releases/tag/v2.32.7	x_refsource_MISC
https://github.com/coder/coder/releases/tag/v2.33.8	x_refsource_MISC
https://github.com/coder/coder/releases/tag/v2.34.2	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
coder	coder	Affected: >= 2.34.0, < 2.34.2 Affected: >= 2.33.0, < 2.33.8 Affected: >= 2.30.0, < 2.32.7 Affected: < 2.29.17

Show details on NVD website

JSON

To clipboard

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CVE-2026-54781 (GCVE-0-2026-54781)

Vulnerability from cvelistv5 – Published: 2026-07-08 22:19 – Updated: 2026-07-09 14:40

Title

CoreWCF: SAML SubjectConfirmation methods and holder-of-key proof keys are not enforced

Summary

CoreWCF is a port of the service side of Windows Communication Foundation (WCF) to .NET Core. Prior to 1.8.1 and 1.9.1, CoreWCF SAML token validation does not enforce SubjectConfirmation method URIs or holder-of-key proof keys in SamlSecurityTokenHandler, allowing holder-of-key downgrade or custom confirmation method assertions to authenticate a subject without proving authority over the assertion. This issue is fixed in versions 1.8.1 and 1.9.1.

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 2026-07-09 14:31 UTC

CWE

CWE-287 - Improper Authentication
CWE-345 - Insufficient Verification of Data Authenticity

Assigner

GitHub_M mitre root

References

6 references

URL	Tags
https://github.com/CoreWCF/CoreWCF/security/advis…	x_refsource_CONFIRM
https://github.com/CoreWCF/CoreWCF/commit/6a99df3…	x_refsource_MISC
https://github.com/CoreWCF/CoreWCF/commit/86dd323…	x_refsource_MISC
https://github.com/CoreWCF/CoreWCF/commit/9eb9b46…	x_refsource_MISC
https://github.com/CoreWCF/CoreWCF/releases/tag/v1.8.1	x_refsource_MISC
https://github.com/CoreWCF/CoreWCF/releases/tag/v1.9.1	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
CoreWCF	CoreWCF	Affected: >= 1.9.0, < 1.9.1 Affected: < 1.8.1

Show details on NVD website

JSON

To clipboard

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          "name": "https://github.com/CoreWCF/CoreWCF/commit/9eb9b46d1c2af06fb71f656a02f4d5b4649c1f03",
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        "advisory": "GHSA-48pq-2xq3-c2m4",
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      "title": "CoreWCF: SAML SubjectConfirmation methods and holder-of-key proof keys are not enforced"
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    "dateUpdated": "2026-07-09T14:40:11.234Z",
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  },
  "dataType": "CVE_RECORD",
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CVE-2026-54635 (GCVE-0-2026-54635)

Vulnerability from cvelistv5 – Published: 2026-07-28 17:09 – Updated: 2026-08-11 22:11

Title

pytonapi has a Webhook Custom Path Authentication Bypass

Summary

pytonapi is a Python SDK for TONAPI that provides REST API, streaming, and webhook access to the TON blockchain. From 2.0.0 to 2.2.0, TonapiWebhookDispatcher fails to validate the Authorization header when a webhook handler is registered with the documented path argument, because setup() stores bearer tokens only under the default suffix paths and never adds the custom path to the token map, so self._tokens.get(path) returns None and the authentication guard is skipped. An unauthenticated remote attacker can POST forged payloads to the custom webhook endpoint and trigger victim-defined handlers. This issue is fixed in version 2.2.1.

Severity

7.5 (High)


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

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-28 17:29 UTC

CWE

CWE-287 - Improper Authentication

Assigner

GitHub_M mitre root

References

4 references

URL	Tags
https://github.com/nessshon/tonapi/security/advis…	x_refsource_CONFIRM
https://github.com/nessshon/tonapi/commit/854222b…	x_refsource_MISC
https://github.com/nessshon/tonapi/releases/tag/v2.2.1	x_refsource_MISC
https://github.com/pypa/advisory-database/tree/ma…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
nessshon	tonapi	Affected: >= 2.0.0, < 2.2.1

Show details on NVD website

JSON

To clipboard

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CVE-2026-54600 (GCVE-0-2026-54600)

Vulnerability from cvelistv5 – Published: 2026-08-31 20:32 – Updated: 2026-09-02 17:32

Title

Wallos: Unauthenticated database replacement via import endpoint on fresh install

Summary

Wallos is an open-source, self-hostable personal subscription tracker. Prior to version 4.9.4, endpoints/db/import.php has no authentication. The only guard is a user-table row count — if zero (fresh/unconfigured install), an unauthenticated attacker can replace the entire database. This issue has been patched in version 4.9.4.

Severity

8.2 (High)


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

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-02 17:32 UTC

CWE

CWE-287 - Improper Authentication

Assigner

GitHub_M mitre root

References

2 references

URL	Tags
https://github.com/ellite/Wallos/security/advisor…	x_refsource_CONFIRM
https://github.com/ellite/Wallos/releases/tag/v4.9.4	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
ellite	Wallos	Affected: < 4.9.4

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
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                "id": "CVE-2026-54600",
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CVE-2026-54547 (GCVE-0-2026-54547)

Vulnerability from cvelistv5 – Published: 2026-09-15 17:17 – Updated: 2026-09-17 16:23

Title

Meta Ads MCP: X-Pipeboard-Token Header Auth Bypass Reuses Operator Meta Token

Summary

Meta Ads MCP is a Model Context Protocol (MCP) server that lets AI assistants run Meta Ads. Prior to version 1.0.115, AuthInjectionMiddleware in meta_ads_mcp/core/http_auth_integration.py rejects HTTP MCP requests only when both auth_token and pipeboard_token are absent, while extract_token_from_headers() does not recognize X-Pipeboard-Token as a primary credential. A network caller using the streamable-http transport can therefore send any X-Pipeboard-Token value, pass the guard without establishing authentication context, and cause get_auth_token() to fall back to the server operator's META_ACCESS_TOKEN. Subsequent MCP tools execute with the operator's Meta credentials and can read or modify the operator's Meta Ads data. Deployments using the default stdio transport or without META_ACCESS_TOKEN are not affected. This issue is fixed in version 1.0.115.

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: poc Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-17 16:23 UTC

CWE

CWE-287 - Improper Authentication

Assigner

GitHub_M mitre root

References

4 references

URL	Tags
https://github.com/pipeboard-co/meta-ads-mcp/secu…	x_refsource_CONFIRM
https://github.com/pipeboard-co/meta-ads-mcp/pull/137	x_refsource_MISC
https://github.com/pipeboard-co/meta-ads-mcp/comm…	x_refsource_MISC
https://github.com/pipeboard-co/meta-ads-mcp/rele…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
pipeboard-co	meta-ads-mcp	Affected: < 1.0.115

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
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                "id": "CVE-2026-54547",
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                    "Technical Impact": "total"
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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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