CVE-2026-52767 YesWiki: Unauthenticated ActivityPub Signature-Verification Bypass via `!openssl_verify(...)` accepting `int(-1)`

YesWiki is a wiki system written in PHP. From version 4.6.2 to before version 4.6.6, HttpSignatureService::verifySignature checks the result of PHP's opensslverify with a loose boolean negation - if !opensslverify... throw ... . PHP's opensslverify has four possible return values: 1, 0, -1, and...

CVE-2026-52767

YesWiki versions 4.6.2 through 4.6.5 are affected by a signature-verification bypass in the ActivityPub implementation. The vulnerable function HttpSignatureService::verifySignature() in tools/bazar/services/HttpSignatureService.php uses a loose boolean negation on PHP's openssl_verify(). When op...

AZL-99693 CVE-2026-86091 affecting package ntopng 5.2.1-6

ntopng before 6.7.260717 fails to check user privileges in the pools bulk-delete endpoint, allowing authenticated non-administrators to delete all host pools and member bindings. Attackers can issue POST requests to the delete pools endpoint to irreversibly destroy every host pool, removing traff...

CVE-2026-46636

Twig is a template language for PHP. From version 1.0.0 to before version 3.27.0, SecurityPolicy::checkMethodAllowed unconditionally whitelists all method calls on instances of Twig\Markup. Twig\Markup is not final, so subclasses inherit the bypass. An application that passes an object of a...

CVE-2026-86090

ntopng before 6.7.260717 fails to perform authorization checks in the delete endpoints and recipients REST v2 handlers. Authenticated non-administrator users can issue POST requests to irreversibly delete all configured notification endpoints and recipients, silencing all alerts...

CVE-2026-46636

Twig is a template language for PHP. From version 1.0.0 to before version 3.27.0, SecurityPolicy::checkMethodAllowed unconditionally whitelists all method calls on instances of Twig\Markup. Twig\Markup is not final, so subclasses inherit the bypass. An application that passes an object of a...

CVE-2026-46636

Twig , a PHP template language, is affected in versions 1.0.0 through 3.27.0 . The vulnerability stems from SecurityPolicy::checkMethodAllowed() unconditionally whitelisting all method calls on Twig\Markup instances. Because Twig\Markup is not final, subclasses inherit this bypass, exposing every...

CVE-2026-46636 Twig: Sandbox method allowlist bypass via `Markup` subclass

Twig is a template language for PHP. From version 1.0.0 to before version 3.27.0, SecurityPolicy::checkMethodAllowed unconditionally whitelists all method calls on instances of Twig\Markup. Twig\Markup is not final, so subclasses inherit the bypass. An application that passes an object of a...

CVE-2026-46636 Twig: Sandbox method allowlist bypass via `Markup` subclass

Twig is a template language for PHP. From version 1.0.0 to before version 3.27.0, SecurityPolicy::checkMethodAllowed unconditionally whitelists all method calls on instances of Twig\Markup. Twig\Markup is not final, so subclasses inherit the bypass. An application that passes an object of a...

CVE-2026-53769

Avo is a framework to create admin panels for Ruby on Rails apps. From version 2.28.0 to before version 3.32.0, Avo's direct attachment upload endpoint lacks server-side upload authorization and bypasses the documented field-level upload policy methods such as uploadFIELDID?. An authenticated Avo...

EUVD-2026-57456

SiYuan: Static-file routes bypass the publish-access controls enforced on the REST API, exposing templates, snippets and export artifacts to anonymous readers...

GHSA-FGMR-7W36-9QFQ SiYuan: Static-file routes bypass the publish-access controls enforced on the REST API, exposing templates, snippets and export artifacts to anonymous readers

CVE: This vulnerability corresponds to CVE-2026-72796. Summary Several static-file routes in the server mux kernel/server/serve.go are registered with CheckAuth only and serve directories directly, without the publish-access checks, sensitive-path blocklist, or refuseToAccess rules that the REST...

EUVD-2026-45904

SurrealDB: Writes in a PERMISSIONS clause bypass table permissions...

GHSA-66R2-5GWJ-GXM2 SurrealDB: Writes in a PERMISSIONS clause bypass table permissions

A PERMISSIONS ... WHERE clause is evaluated with permission enforcement disabled, so it can't recurse into its own checks. But the clause could also contain data-modifying statements, and these ran with enforcement still off — so evaluating a permission check could write to tables the caller cann...

CVE-2026-63464

nebula-mesh is a self-hosted control plane for Slack Nebula mesh VPN. From version 0.6.0 to before version 0.7.2, non-admin operators role user can set allowprivate: true on their own managed webhook subscription POST/PATCH /api/v1/webhook-subscriptions. No admin check exists on this field. At...

CVE-2026-53602

nebula-mesh is a self-hosted control plane for Slack Nebula mesh VPN. Prior to version 0.3.7, two related authorization gaps let a host that should no longer be trusted obtain a fresh, valid Nebula certificate, because nebula-mgmt does not re-evaluate revocation/authorization state at certificate...

GHSA-848M-R628-VRXW SurrealDB: Custom API route lets authenticated callers override namespace/database scope via URL path

An authenticated user scoped to one namespace/database could invoke a custom API DEFINE API belonging to a different namespace/database, reaching another tenant's endpoint. The route /api/namespace/database/endpoint took the namespace and database from the URL and applied them to the caller's...

CVE-2026-53769 Avo: Direct attachment upload endpoint lacks upload authorization and bypasses field-level upload policy

Avo is a framework to create admin panels for Ruby on Rails apps. From version 2.28.0 to before version 3.32.0, Avo's direct attachment upload endpoint lacks server-side upload authorization and bypasses the documented field-level upload policy methods such as uploadFIELDID?. An authenticated Avo...

CVE-2026-53769

Avo , a Ruby on Rails admin panel framework, contains a missing server-side authorization vulnerability in Avo::AttachmentsController#create (the direct attachment upload endpoint) affecting versions 2.28.0 through before 3.32.0 . The endpoint creates an ActiveStorage::Blob before validating the ...

CVE-2026-53769 Avo: Direct attachment upload endpoint lacks upload authorization and bypasses field-level upload policy

Avo is a framework to create admin panels for Ruby on Rails apps. From version 2.28.0 to before version 3.32.0, Avo's direct attachment upload endpoint lacks server-side upload authorization and bypasses the documented field-level upload policy methods such as uploadFIELDID?. An authenticated Avo...