mcp-security-checklist

🔐 MCP セキュリティチェックリスト Model Context Protocol（MCP）サーバーとAIエージェントインフラを構築・展開するチーム向けの、実践的でコミュニティ保守されたセキュリティチェックリストです。 なぜこれが必要か MCPは急速に採用されていますが、セキュリティガイダンスは遅れを取っています。 このチェックリストは、セキュリティエンジニア、プラットフォームチーム、テクニカルリーダーに対し、内部ツールであれ顧客向けAIエージェントであれ、MCPデプロイメントを安全にするための明確で実践可能なベースライン を提供します。...

CVE-2026-85389 Worklenz before 3.0.0 Authorization Bypass on Task-Scoped Endpoints

Worklenz before 3.0.0 fails to verify task ownership by organization when resolving task-scoped API endpoints, allowing authenticated users to access another tenant's task data. Attackers can query task endpoints with arbitrary task UUIDs to retrieve work logs, comments, attachments, and project...

CVE-2026-75035

SUSE Rancher Manager is affected by a flaw in the ext.cattle.io/v1 Token store where a crafted label selector causes the internal owner filter to be dropped, allowing any authenticated user (with the built-in User or User Base role) to list and watch other users' tokens. Exposed data includes tok...

CVE-2026-82749

Incorrect Authorization vulnerability in ash-project ash widens a relationship's parent... scoping filter to match unintended records when the referenced parent field cannot be resolved. Loading a relationship whose filter references parent... resolves that expression against the parent record...

CVE-2026-82749 Ash relationship parent(...) filter degrades to an IS NULL match when the parent field is unresolved, leaking scoped records

Incorrect Authorization vulnerability in ash-project ash widens a relationship's parent... scoping filter to match unintended records when the referenced parent field cannot be resolved. Loading a relationship whose filter references parent... resolves that expression against the parent record...

EUVD-2026-68953

Incorrect Authorization vulnerability in ash-project ash widens a relationship's parent... scoping filter to match unintended records when the referenced parent field cannot be resolved. Loading a relationship whose filter references parent... resolves that expression against the parent record...

CVE-2026-82749

CVE-2026-82749 is an Incorrect Authorization flaw in ash-project ash (versions 3.13.2 through 3.32.1 ). The vulnerable component is resolve_parent_in_filter/3 in lib/ash/actions/read/relationships.ex, which resolved unresolvable parent(...) references to nil instead of raising an error. This caus...

VulnCheck KEV: CVE-2026-18366

The Events Manager WordPress plugin before 7.4.1 does not properly scope its capability mapping, discarding the access control decisions WordPress already made for unrelated privileged actions, which allows unauthenticated users to change the password of, escalate to Administrator, or delete any...

EUVD-2026-66713

Weblate has IDOR in GroupViewSet that allows authenticated project manager to gain unauthorized read access to any private project...

Linux Distros Unpatched Vulnerability : CVE-2026-80183

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In OpenStack Keystone before 29.0.3, any authenticated user holding role:reader on any project can list every project-scoped role assignment under any domain by...

CVE-2026-77611

SeaweedFS is a distributed storage system for files and blobs. In versions prior to 4.40, an authenticated S3 principal with permissions scoped to a nested object key can overwrite a different object outside that scope by calling PutObjectAcl on the key it is allowed to access. The handler...

CVE-2026-77368

SeaweedFS is a distributed storage system for files and blobs. In version 4.39, the filer's TUS resumable-upload handler checks JWT allowedprefixes scoping only when a session is created, letting a low-privilege tenant hijack another tenant's upload session to write content to filer paths their o...

CVE-2026-77368 SeaweedFS: Authenticated Cross-Prefix IDOR in Filer TUS Handler Enables Arbitrary Write to Tenant-Forbidden Paths

SeaweedFS is a distributed storage system for files and blobs. In version 4.39, the filer's TUS resumable-upload handler checks JWT allowedprefixes scoping only when a session is created, letting a low-privilege tenant hijack another tenant's upload session to write content to filer paths their o...

CVE-2026-77368

SeaweedFS version 4.39 contains an authenticated cross-prefix IDOR in the filer's TUS resumable-upload handler . The JWT allowed_prefixes scoping is enforced only when an upload session is created; the HEAD , PATCH , and DELETE verbs that operate on an existing session by its identifier never re-...

EUVD-2026-66118

In OpenStack Keystone before 29.0.3, tokens obtained via OAuth1 access token, application credential, or trust-scoped authentication could create new long-lived credentials or authorize new delegations that persist independently of, and outlive, the credential used to obtain them. The delegation...

Linux Distros Unpatched Vulnerability : CVE-2026-16434

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Adminer 4.6.0 through 5.5.0 fixed in 5.5.1 contains an incomplete fix for a prior X-Forwarded-Prefix vulnerability GHSA-8478-xrj3-h9c2. The validation guard...

DEBIAN-CVE-2026-80182

In OpenStack Keystone before 29.0.3, tokens obtained via OAuth1 access token, application credential, or trust-scoped authentication could create new long-lived credentials or authorize new delegations that persist independently of, and outlive, the credential used to obtain them. The delegation...

CVE-2026-80182

In OpenStack Keystone before 29.0.3, tokens obtained via OAuth1 access token, application credential, or trust-scoped authentication could create new long-lived credentials or authorize new delegations that persist independently of, and outlive, the credential used to obtain them. The delegation...

CVE-2026-16434

Adminer versions 4.6.0 through 5.5.0 contain an incomplete fix for a prior X-Forwarded-Prefix header injection (GHSA-8478-xrj3-h9c2). The validation guard in bootstrap.inc.php uses the regex ^/[^/] to reject malicious prefixes, which blocks //evil.com but allows values like /\evil.com where the s...

EUVD-2026-65060

Label Studio does not scope the annotation detail endpoint to the requesting user's organization. AnnotationAPI in labelstudio/tasks/api.py declares queryset = Annotation.objects.all and provides no getqueryset override, so the default lookup retrieves any annotation by primary key. The view's...