CVE-2026-45123

MyBB is free and open source forum software. Prior to 1.8.40, the remote requests feature does not correctly handle IPv6 addresses, resulting in a server-side request forgery vulnerability. The default disallowed remote hosts list does not include IPv6 addresses. Verification in fetchremotefile...

CVE-2026-45123 MyBB: IPv6 SSRF

MyBB is free and open source forum software. Prior to 1.8.40, the remote requests feature does not correctly handle IPv6 addresses, resulting in a server-side request forgery vulnerability. The default disallowed remote hosts list does not include IPv6 addresses. Verification in fetchremotefile...

CVE-2026-45123

MyBB (open-source forum software) versions prior to 1.8.40 are affected by a server-side request forgery (SSRF) vulnerability in the remote requests feature. The root cause is a fail-open verification in fetch_remote_file() within inc/functions.php: the function get_ip_by_hostname() does not retu...

CVE-2026-45123 MyBB: IPv6 SSRF

MyBB is free and open source forum software. Prior to 1.8.40, the remote requests feature does not correctly handle IPv6 addresses, resulting in a server-side request forgery vulnerability. The default disallowed remote hosts list does not include IPv6 addresses. Verification in fetchremotefile...

EUVD-2026-61051

MyBB is free and open source forum software. Prior to 1.8.40, the remote requests feature does not correctly handle IPv6 addresses, resulting in a server-side request forgery vulnerability. The default disallowed remote hosts list does not include IPv6 addresses. Verification in fetchremotefile...

PT-2026-77177

MyBB is free and open source forum software. Prior to 1.8.40, the remote requests feature does not correctly handle IPv6 addresses, resulting in a server-side request forgery vulnerability. The default disallowed remote hosts list does not include IPv6 addresses. Verification in fetch remote file...

CVE-2026-45123: Server-Side Request Forgery (SSRF)

MyBB is free and open source forum software. Prior to 1.8.40, the remote requests feature does not correctly handle IPv6 addresses, resulting in a server-side request forgery vulnerability. The default disallowed remote hosts list does not include IPv6 addresses. Verification in fetchremotefile...

CVE-2026-75110

MemOS is a memory operating system for LLMs and AI agents. In deployments where authentication is enabled AUTHENABLED=true but the undocumented, defaultless INTERNALSERVICESECRET environment variable is unset, the isinternalrequest check in src/memos/api/middleware/auth.py fails open:...

ANT-2026-QXNF2N9K · rocketchat · Authentication-bypass

auth-bypass high CVE-2026-48929 Severity Claude high · Security research firm high · Maintainer high Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Ophion Security. ANT-2026-QXNF2N9K: Unauthenticated Arbitrary Fil...

CVE-2026-73421

NextAuth.js vulnerability CVE-2026-73421 affects next-auth v5: when server configuration has an error (e.g., missing issuer/authorization, unset AUTH_SECRET), the auth() wrapper can return a truthy error object in middleware, Route Handlers, React Server Components, etc. As a result, existence-ba...

CVE-2026-73421

NextAuth.js provides authentication for Next.js. From next-auth 5.0.0-beta.0 until 5.0.0-beta.32, applications that gate access by checking only for the existence of the auth object returned by the auth wrapper can fail open when Auth.js has a server configuration error. In middleware, Route...

CVE-2026-73421 NextAuth.js: Configuration errors can cause existence-based auth checks to fail open (auth object populated with an error)

NextAuth.js provides authentication for Next.js. From next-auth 5.0.0-beta.0 until 5.0.0-beta.32, applications that gate access by checking only for the existence of the auth object returned by the auth wrapper can fail open when Auth.js has a server configuration error. In middleware, Route...

github.com/getkin/kin-openapi: kin-openapi: kin-openapi: ValidationHandler.Load() Fail-Open Authentication Bypass via NoopAuthenticationFunc Default

A flaw was found in kin-openapi. This vulnerability allows a remote attacker to bypass authentication checks. Specifically, the system incorrectly handles missing authentication configurations, substituting them with a function that does not verify user credentials. This enables unauthorized acce...

Duplicate Advisory: Publish-access filter on renderAttributeView leaves related-database content unfiltered and fails open on non-block first columns

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-mfrj-v65r-979c. This link is maintained to preserve external references. Original Description SiYuan versions before v3.7.4 fail to properly filter related-database content in renderAttributeView, allowing...

CVE-2026-73501 kin-openapi: ValidationHandler.Load() Fail-Open Authentication Bypass via NoopAuthenticationFunc Default

kin-openapi is a Go project for handling OpenAPI files. Prior to 0.144.0, ValidationHandler.Load in openapi3filter/validationhandler.go silently replaces a nil AuthenticationFunc with NoopAuthenticationFunc, which returns nil without checking credentials. This substitution causes every OpenAPI...

CVE-2026-73501

kin-openapi vulnerability CVE-2026-73501: prior to v0.144.0, ValidationHandler.Load() silently replaced a nil AuthenticationFunc with NoopAuthenticationFunc, which returns nil and does not verify credentials. This leads to every OpenAPI security requirement being satisfied for unauthenticated req...

CVE-2026-73501 kin-openapi: ValidationHandler.Load() Fail-Open Authentication Bypass via NoopAuthenticationFunc Default

kin-openapi is a Go project for handling OpenAPI files. Prior to 0.144.0, ValidationHandler.Load in openapi3filter/validationhandler.go silently replaces a nil AuthenticationFunc with NoopAuthenticationFunc, which returns nil without checking credentials. This substitution causes every OpenAPI...

CVE-2026-73501 kin-openapi: ValidationHandler.Load() Fail-Open Authentication Bypass via NoopAuthenticationFunc Default

kin-openapi is a Go project for handling OpenAPI files. Prior to 0.144.0, ValidationHandler.Load in openapi3filter/validationhandler.go silently replaces a nil AuthenticationFunc with NoopAuthenticationFunc, which returns nil without checking credentials. This substitution causes every OpenAPI...

CVE-2026-73241

FreeRDP vulnerability CVE-2026-73241 affects the server-side RDSTLS implementation (libfreerdp/core/rdstls.c). An attacker-supplied RDSTLS_TYPE_CAPABILITIES PDU can be processed while the server awaits RDSTLS_TYPE_AUTHREQ, leaving resultCode as RDSTLS_RESULT_SUCCESS and allowing a remote unauthen...

CVE-2026-73241 FreeRDP: RDSTLS server authentication bypass: a credential-less Capabilities PDU is accepted at the auth step (fail-open `resultCode`)

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.30.0, FreeRDP server-side RDSTLS in libfreerdp/core/rdstls.c accepts an attacker-supplied RDSTLSTYPECAPABILITIES PDU while rdstlsserverauthenticate is waiting for RDSTLSTYPEAUTHREQ, leaving resultCode at RDSTLSRESULTSUCCE...