Common Weakness Enumeration

CWE-284

Discouraged

Improper Access Control

Abstraction: Pillar · Status: Incomplete

API response cwe.mitre.org

The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

9891 vulnerabilities reference this CWE, most recent first.

CVE-2026-54745 (GCVE-0-2026-54745)

Vulnerability from cvelistv5 – Published: 2026-08-28 15:59 – Updated: 2026-08-31 19:10

Title

Kubeflow Pipelines: Unauthenticated SSRF and HTTP smuggling in Kubeflow Pipelines frontend /_proxy/ route, bypasses ENABLE_AUTHZ=true

Summary

Kubeflow Pipelines enables users to build and deploy portable, scalable machine learning workflows. Prior to 2.17.0, the Kubeflow Pipelines frontend exposes an unauthenticated server-side request forgery vulnerability through the /_proxy/ route in frontend/server/proxy-middleware.ts. The _routePathWithReferer() function accepts an arbitrary attacker-controlled HTTP or HTTPS target and passes its origin to createProxyMiddleware without a host allowlist or filtering for loopback, link-local, RFC1918, or cluster-local addresses. The route remains outside the authorization middleware when ENABLE_AUTHZ=true and is reachable through /apis/v1beta1/_proxy/, /apis/v2beta1/_proxy/, /pipeline/apis/v1beta1/_proxy/, and /pipeline/apis/v2beta1/_proxy/, including through a crafted Referer header. Requests can forward attacker-controlled methods, headers such as Authorization, Cookie, and X-Forwarded-For, and POST bodies to reachable internal services, while returning the upstream response to the unauthenticated client. This can expose cloud metadata credentials, Kubernetes or service APIs, and other cluster-internal endpoints to unauthorized read or modification. This issue is fixed in version 2.17.0.

Severity

10 (Critical)


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

SSVC

Exploitation: poc Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-31 19:09 UTC

CWE

CWE-284 - Improper Access Control
CWE-918 - Server-Side Request Forgery (SSRF)

Assigner

GitHub_M mitre root

References

4 references

URL	Tags
https://github.com/kubeflow/pipelines/security/ad…	x_refsource_CONFIRM
https://github.com/kubeflow/pipelines/pull/13511	x_refsource_MISC
https://github.com/kubeflow/pipelines/commit/a35f…	x_refsource_MISC
https://github.com/kubeflow/pipelines/releases/ta…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
kubeflow	pipelines	Affected: < 2.17.0

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
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        "metrics": [
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              "content": {
                "id": "CVE-2026-54745",
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CVE-2026-54730 (GCVE-0-2026-54730)

Vulnerability from cvelistv5 – Published: 2026-08-18 16:55 – Updated: 2026-08-18 17:21

Title

authentik: Authentication Flow Bypass via Unguarded challenge_valid() in AuthenticatorEndpointGDTCStage and GoogleChromeStageView

Summary

authentik is an open-source identity provider. Prior to 2026.2.6 and 2026.5.5, the enterprise Google Chrome device-trust stages advance the flow without confirming that the out-of-band device attestation actually ran. Affected enterprise deployments place either a Google Chrome Endpoint stage with mode set to REQUIRED or the deprecated Google Chrome Device Trust Connector stage in an authentication flow. The device attestation occurs in a verification iframe that calls the Google Verified Access API and records the verified device on success, but the vulnerable stages treat the flow as passed as soon as the stage is submitted. An attacker who can reach such a stage, including after primary username and password authentication, can skip the verification iframe and authenticate from a device that was never verified. Where device trust is the only additional factor, that protection is fully bypassed, while other configured factors remain in force. This issue is fixed in versions 2026.2.6 and 2026.5.5.

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: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-18 17:18 UTC

CWE

CWE-284 - Improper Access Control
CWE-807 - Reliance on Untrusted Inputs in a Security Decision

Assigner

GitHub_M mitre root

References

7 references

URL	Tags
https://github.com/goauthentik/authentik/security…	x_refsource_CONFIRM
https://github.com/goauthentik/authentik/pull/24053	x_refsource_MISC
https://github.com/goauthentik/authentik/pull/24058	x_refsource_MISC
https://github.com/goauthentik/authentik/commit/2…	x_refsource_MISC
https://github.com/goauthentik/authentik/commit/8…	x_refsource_MISC
https://github.com/goauthentik/authentik/releases…	x_refsource_MISC
https://github.com/goauthentik/authentik/releases…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
goauthentik	authentik	Affected: < 2026.2.6 Affected: >= 2026.5.0, < 2026.5.5

Show details on NVD website

JSON

To clipboard

{
  "containers": {
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                "id": "CVE-2026-54730",
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CVE-2026-54533 (GCVE-0-2026-54533)

Vulnerability from cvelistv5 – Published: 2026-06-17 22:17 – Updated: 2026-06-18 12:36

Title

vantage6 node has an Improper Access Control issue

Summary

vantage6 is an open-source infrastructure for privacy preserving analysis. Prior to version 5.0.0, malicious algorithms can potentially access other algorithms input and output files. Version 5.0.0 fixes the issue. As a workaround, verify and restrict the algorithm containers that are allowed to run on the node.

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 2026-06-18 12:36 UTC

CWE

CWE-284 - Improper Access Control

Assigner

GitHub_M mitre root

References

4 references

URL	Tags
https://github.com/vantage6/vantage6/security/adv…	x_refsource_CONFIRM
https://github.com/vantage6/vantage6/issues/1932	x_refsource_MISC
https://docs.vantage6.ai/usage/running-the-node/s…	x_refsource_MISC
https://github.com/vantage6/vantage6/blob/main/do…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
vantage6	vantage6	Affected: < 5.0.0

Show details on NVD website

JSON

To clipboard

{
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CVE-2026-54526 (GCVE-0-2026-54526)

Vulnerability from cvelistv5 – Published: 2026-07-16 19:07 – Updated: 2026-07-17 13:57

Title

Argo Workflows: Incomplete fix for CVE-2026-31892: ArtifactGC.PodSpecPatch bypass of Strict/Secure templateReferencing

Summary

Argo Workflows is an open source container-native workflow engine for orchestrating parallel jobs on Kubernetes. Prior to 3.7.15 and 4.0.6, the allow-list fix for CVE-2026-31892 is incomplete because workflow/util/merge.go ValidateUserOverrides and SanitizeUserWorkflowSpec walk only the top-level fields of WorkflowSpec via reflection, and WorkflowSpec.ArtifactGC is allow-listed wholesale; the struct behind that field, WorkflowLevelArtifactGC, has a PodSpecPatch sub-field whose contents flow unmodified into util.ApplyPodSpecPatch on the artifact-GC pod, the same sink the original fix closed for WorkflowSpec.PodSpecPatch, so a user submitting a Workflow under templateReferencing: Strict or Secure (against a referenced WorkflowTemplate that declares an output artifact and setting spec.artifactGC.strategy: OnWorkflowCompletion) can still inject an arbitrary strategic merge patch into the artifact-GC pod, including hostPath volumes, privileged: true, arbitrary image and command, and hostNetwork: true, defeating the stated purpose of Strict/Secure reference mode. This issue is fixed in versions 3.7.15 and 4.0.6.

Severity

8.9 (High)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-17 13:57 UTC

CWE

CWE-284 - Improper Access Control

Assigner

GitHub_M mitre root

References

5 references

URL	Tags
https://github.com/argoproj/argo-workflows/securi…	x_refsource_CONFIRM
https://github.com/argoproj/argo-workflows/commit…	x_refsource_MISC
https://github.com/argoproj/argo-workflows/commit…	x_refsource_MISC
https://github.com/argoproj/argo-workflows/releas…	x_refsource_MISC
https://github.com/argoproj/argo-workflows/releas…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
argoproj	argo-workflows	Affected: < 3.7.15 Affected: >= 4.0.0, < 4.0.6

Show details on NVD website

JSON

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CVE-2026-54408 (GCVE-0-2026-54408)

Vulnerability from cvelistv5 – Published: 2026-07-02 14:49 – Updated: 2026-07-02 16:08

Summary

A malicious actor with access to the network could exploit an Improper Access Control vulnerability found in UniFi Protect Application to bypass authentication for data streaming.

Severity

8.6 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-02 16:08 UTC

CWE

CWE-284 - Improper Access Control - Generic

Assigner

hackerone mitre root

References

1 reference

URL	Tags
https://community.ui.com/releases/Security-Adviso…

Impacted products

1 product

Vendor	Product	Version
Ubiquiti Inc	UniFi Protect Application	Affected: 0 , < 7.1.83 (semver)

Show details on NVD website

JSON

To clipboard

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CVE-2026-54407 (GCVE-0-2026-54407)

Vulnerability from cvelistv5 – Published: 2026-07-02 14:49 – Updated: 2026-07-02 16:08

Summary

A malicious actor with access to the network could exploit an Improper Access Control vulnerability found in UniFi Protect Application to bypass authentication in certain UniFi Protect Application API endpoints.

Severity

8.6 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-02 16:08 UTC

CWE

CWE-284 - Improper Access Control - Generic

Assigner

hackerone mitre root

References

1 reference

URL	Tags
https://community.ui.com/releases/Security-Adviso…

Impacted products

1 product

Vendor	Product	Version
Ubiquiti Inc	UniFi Protect Application	Affected: 0 , < 7.1.83 (semver)

Show details on NVD website

JSON

To clipboard

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CVE-2026-54400 (GCVE-0-2026-54400)

Vulnerability from cvelistv5 – Published: 2026-07-02 14:49 – Updated: 2026-07-02 16:11

Summary

A malicious actor with access to the network and high privileges could exploit an Improper Access Control vulnerability found in UniFi Access Application to escalate privileges on the host device.

Severity

9.1 (Critical)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-02 16:10 UTC

CWE

CWE-284 - Improper Access Control - Generic

Assigner

hackerone mitre root

References

1 reference

URL	Tags
https://community.ui.com/releases/Security-Adviso…

Impacted products

1 product

Vendor	Product	Version
Ubiquiti Inc	UniFi Access Application	Affected: 0 , < 4.2.29 (semver)

Show details on NVD website

JSON

To clipboard

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CVE-2026-54305 (GCVE-0-2026-54305)

Vulnerability from cvelistv5 – Published: 2026-06-23 15:45 – Updated: 2026-06-23 17:44

Title

n8n: Cross-Tenant Credential Takeover via Dynamic Credentials EE Endpoints

Summary

n8n is an open source workflow automation platform. Prior to 1.123.55, 2.25.7, and 2.26.2, three EE endpoints used by the Dynamic Credentials feature accepted any authenticated n8n session without performing per-resource ownership or scope checks on the target workflow or credential. An authenticated user with no project membership or credential sharing relationship could enumerate credential identifiers, names, and types referenced by any private workflow in the instance, initiate an OAuth authorization flow against another user's credential to overwrite its stored tokens with tokens bound to an account they control, or revoke another user's stored credential tokens entirely. Workflows relying on a hijacked credential would subsequently execute under the attacker's OAuth identity, enabling data exfiltration to attacker-controlled external services and persistent takeover of integrations. Token revocation would break affected workflows. This vulnerability is fixed in 1.123.55, 2.25.7, and 2.26.2.

Severity

8.9 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-06-23 17:44 UTC

CWE

CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
CWE-284 - Improper Access Control

Assigner

GitHub_M mitre root

References

1 reference

URL	Tags
https://github.com/n8n-io/n8n/security/advisories…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
n8n-io	n8n	Affected: < 1.123.55 Affected: >= 2.0.0-rc.0, < 2.25.7 Affected: >= 2.26.0, < 2.26.2

Show details on NVD website

JSON

To clipboard

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          "value": "n8n is an open source workflow automation platform. Prior to 1.123.55, 2.25.7, and 2.26.2, three EE endpoints used by the Dynamic Credentials feature accepted any authenticated n8n session without performing per-resource ownership or scope checks on the target workflow or credential. An authenticated user with no project membership or credential sharing relationship could enumerate credential identifiers, names, and types referenced by any private workflow in the instance, initiate an OAuth authorization flow against another user\u0027s credential to overwrite its stored tokens with tokens bound to an account they control, or revoke another user\u0027s stored credential tokens entirely. Workflows relying on a hijacked credential would subsequently execute under the attacker\u0027s OAuth identity, enabling data exfiltration to attacker-controlled external services and persistent takeover of integrations. Token revocation would break affected workflows. This vulnerability is fixed in 1.123.55, 2.25.7, and 2.26.2."
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CVE-2026-54256 (GCVE-0-2026-54256)

Vulnerability from cvelistv5 – Published: 2026-08-26 17:53 – Updated: 2026-08-27 14:33

Title

Winter: Authenticated IDOR in backend FileUpload widget allows cross-user access to attachment metadata

Summary

Winter CMS is a content management system built on the Laravel PHP framework. In versions up to and including 1.2.12, the backend FileUpload form widget trusted an attacker-controlled file_id POST parameter when resolving the attachment it operates on, allowing an authenticated backend user to read and modify attachment records belonging to other users or records. The widget's getFileRecord() lookup resolved the posted id against the global system_files table without verifying that the file belonged to the widget's own relation, parent record, or deferred-binding session. Because all attachments share a single File model and table and attachment ids are sequential integers that are easily enumerated, a user reaching any form with a fileupload field, including the built-in My Account avatar field that requires no specific permission, could target arbitrary attachments to modify their title and description via onSaveAttachmentConfig and change their sort order via onSortAttachments, which passed posted ids straight to an unscoped update. CSRF tokens remain enforced, so exploitation requires a valid authenticated backend session with any level of access. This issue is fixed in version 1.2.13.

Severity

5.4 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/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 2026-08-27 13:53 UTC

CWE

CWE-284 - Improper Access Control
CWE-639 - Authorization Bypass Through User-Controlled Key

Assigner

GitHub_M mitre root

References

2 references

URL	Tags
https://github.com/wintercms/winter/security/advi…	x_refsource_CONFIRM
https://github.com/wintercms/winter/commit/9cb0ae…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
wintercms	winter	Affected: < 1.2.13

Show details on NVD website

JSON

To clipboard

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CVE-2026-54213 (GCVE-0-2026-54213)

Vulnerability from cvelistv5 – Published: 2026-08-07 09:47 – Updated: 2026-08-07 13:17

Title

TeamDavid: Denial of Service via endpoint 'internalRestart'

Summary

Tobit Laboratories AG TeamDavid's Webbox application exposes a functionality that allows the server to be shut down when a specific endpoint (/internalRestart) is accessed. This endpoint is accessible to unauthenticated users over the public Internet. Instead of “restarting”, the server shuts completely down. As a result, a remote attacker can trigger a persistent denial of service by shutting down the web server without requiring authentication. Recovery requires manual administrator intervention to restart the service. This issue affects TeamDavid through Rollout 524.

Severity

9.2 (Critical)


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

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-07 13:16 UTC

CWE

CWE-284 - Improper Access Control

Assigner

NCSC.ch mitre root

References

2 references

URL	Tags
https://david.tobit.software/releasenotes	release-notes
https://labs.infoguard.ch/posts/22-cves-in-david-…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
Tobit Laboratories AG	TeamDavid	Affected: 0 , ≤ Rollout 524 (custom)

Credits

Dario Weiss of InfoGuard Labs

Show details on NVD website

JSON

To clipboard

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Mitigation MIT-1

Architecture and Design Operation

Very carefully manage the setting, management, and handling of privileges. Explicitly manage trust zones in the software.

Mitigation MIT-46

Architecture and Design

Strategy: Separation of Privilege

Compartmentalize the system to have "safe" areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area.
Ensure that appropriate compartmentalization is built into the system design, and the compartmentalization allows for and reinforces privilege separation functionality. Architects and designers should rely on the principle of least privilege to decide the appropriate time to use privileges and the time to drop privileges.

CAPEC-19: Embedding Scripts within Scripts

An adversary leverages the capability to execute their own script by embedding it within other scripts that the target software is likely to execute due to programs' vulnerabilities that are brought on by allowing remote hosts to execute scripts.

CAPEC-441: Malicious Logic Insertion

An adversary installs or adds malicious logic (also known as malware) into a seemingly benign component of a fielded system. This logic is often hidden from the user of the system and works behind the scenes to achieve negative impacts. With the proliferation of mass digital storage and inexpensive multimedia devices, Bluetooth and 802.11 support, new attack vectors for spreading malware are emerging for things we once thought of as innocuous greeting cards, picture frames, or digital projectors. This pattern of attack focuses on systems already fielded and used in operation as opposed to systems and their components that are still under development and part of the supply chain.

CAPEC-478: Modification of Windows Service Configuration

An adversary exploits a weakness in access control to modify the execution parameters of a Windows service. The goal of this attack is to execute a malicious binary in place of an existing service.

CAPEC-479: Malicious Root Certificate

An adversary exploits a weakness in authorization and installs a new root certificate on a compromised system. Certificates are commonly used for establishing secure TLS/SSL communications within a web browser. When a user attempts to browse a website that presents a certificate that is not trusted an error message will be displayed to warn the user of the security risk. Depending on the security settings, the browser may not allow the user to establish a connection to the website. Adversaries have used this technique to avoid security warnings prompting users when compromised systems connect over HTTPS to adversary controlled web servers that spoof legitimate websites in order to collect login credentials.

CAPEC-502: Intent Spoof

An adversary, through a previously installed malicious application, issues an intent directed toward a specific trusted application's component in an attempt to achieve a variety of different objectives including modification of data, information disclosure, and data injection. Components that have been unintentionally exported and made public are subject to this type of an attack. If the component trusts the intent's action without verififcation, then the target application performs the functionality at the adversary's request, helping the adversary achieve the desired negative technical impact.

CAPEC-503: WebView Exposure

An adversary, through a malicious web page, accesses application specific functionality by leveraging interfaces registered through WebView's addJavascriptInterface API. Once an interface is registered to WebView through addJavascriptInterface, it becomes global and all pages loaded in the WebView can call this interface.

CAPEC-536: Data Injected During Configuration

An attacker with access to data files and processes on a victim's system injects malicious data into critical operational data during configuration or recalibration, causing the victim's system to perform in a suboptimal manner that benefits the adversary.

CAPEC-546: Incomplete Data Deletion in a Multi-Tenant Environment

An adversary obtains unauthorized information due to insecure or incomplete data deletion in a multi-tenant environment. If a cloud provider fails to completely delete storage and data from former cloud tenants' systems/resources, once these resources are allocated to new, potentially malicious tenants, the latter can probe the provided resources for sensitive information still there.

CAPEC-550: Install New Service

When an operating system starts, it also starts programs called services or daemons. Adversaries may install a new service which will be executed at startup (on a Windows system, by modifying the registry). The service name may be disguised by using a name from a related operating system or benign software. Services are usually run with elevated privileges.

CAPEC-551: Modify Existing Service

When an operating system starts, it also starts programs called services or daemons. Modifying existing services may break existing services or may enable services that are disabled/not commonly used.

CAPEC-552: Install Rootkit

An adversary exploits a weakness in authentication to install malware that alters the functionality and information provide by targeted operating system API calls. Often referred to as rootkits, it is often used to hide the presence of programs, files, network connections, services, drivers, and other system components.

CAPEC-556: Replace File Extension Handlers

When a file is opened, its file handler is checked to determine which program opens the file. File handlers are configuration properties of many operating systems. Applications can modify the file handler for a given file extension to call an arbitrary program when a file with the given extension is opened.

CAPEC-558: Replace Trusted Executable

An adversary exploits weaknesses in privilege management or access control to replace a trusted executable with a malicious version and enable the execution of malware when that trusted executable is called.

CAPEC-562: Modify Shared File

An adversary manipulates the files in a shared location by adding malicious programs, scripts, or exploit code to valid content. Once a user opens the shared content, the tainted content is executed.

CAPEC-563: Add Malicious File to Shared Webroot

An adversaries may add malicious content to a website through the open file share and then browse to that content with a web browser to cause the server to execute the content. The malicious content will typically run under the context and permissions of the web server process, often resulting in local system or administrative privileges depending on how the web server is configured.

CAPEC-564: Run Software at Logon

Operating system allows logon scripts to be run whenever a specific user or users logon to a system. If adversaries can access these scripts, they may insert additional code into the logon script. This code can allow them to maintain persistence or move laterally within an enclave because it is executed every time the affected user or users logon to a computer. Modifying logon scripts can effectively bypass workstation and enclave firewalls. Depending on the access configuration of the logon scripts, either local credentials or a remote administrative account may be necessary.

CAPEC-578: Disable Security Software

An adversary exploits a weakness in access control to disable security tools so that detection does not occur. This can take the form of killing processes, deleting registry keys so that tools do not start at run time, deleting log files, or other methods.

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