GHSA-JWCH-W7WH-GQJM free5GC UDR: Fail-open handling in PolicyDataSubsToNotifyPost allows unintended subscription creation

Summary A fail-open request handling flaw in the UDR service causes the /nudr-dr/v2/policy-data/subs-to-notify POST handler to continue processing requests even after request body retrieval or deserialization errors. This may allow unintended creation of Policy Data notification subscriptions wit...

PT-2026-34214

Name of the Vulnerable Software and Affected Versions free5GC UDR versions prior to 1.4.3 Description A fail-open request handling flaw exists in the UDR service. The POST handler for the endpoint '/nudr-dr/v2/policy-data/subs-to-notify' continues to process requests even after encountering error...

CVE-2026-40249

free5GC is an open-source implementation of the 5G core network. In versions 4.2.1 and below of the UDR service, the PUT handler for updating Policy Data notification subscriptions at /nudr-dr/v2/policy-data/subs-to-notify/subsId does not return after request body retrieval or deserialization...

CVE-2026-40249

free5GC is an open-source implementation of the 5G core network. In versions 4.2.1 and below of the UDR service, the PUT handler for updating Policy Data notification subscriptions at /nudr-dr/v2/policy-data/subs-to-notify/subsId does not return after request body retrieval or deserialization...

CVE-2026-40249

CVE-2026-40249 affects free5GC UDR (versions 4.2.1 and earlier). The PUT handler for /nudr-dr/v2/policy-data/subs-to-notify/{subsId} may continue processing after request body read or deserialization errors, invoking the processor with an uninitialized/partially initialized PolicyDataSubscription...

CVE-2026-40249 free5gc UDR fail-open request handling in PolicyDataSubsToNotifySubsIdPut may allow unintended subscription updates after input errors

free5GC is an open-source implementation of the 5G core network. In versions 4.2.1 and below of the UDR service, the PUT handler for updating Policy Data notification subscriptions at /nudr-dr/v2/policy-data/subs-to-notify/subsId does not return after request body retrieval or deserialization...

CVE-2026-40249 free5gc UDR fail-open request handling in PolicyDataSubsToNotifySubsIdPut may allow unintended subscription updates after input errors

free5GC is an open-source implementation of the 5G core network. In versions 4.2.1 and below of the UDR service, the PUT handler for updating Policy Data notification subscriptions at /nudr-dr/v2/policy-data/subs-to-notify/subsId does not return after request body retrieval or deserialization...

GHSA-GX38-8H33-PMXR free5gc UDR fail-open request handling in PolicyDataSubsToNotifySubsIdPut may allow unintended subscription updates after input errors

Summary A fail-open request handling flaw in the UDR service causes the /nudr-dr/v2/policy-data/subs-to-notify/subsId PUT handler to continue processing requests even after request body retrieval or deserialization errors. This may allow unintended modification of existing Policy Data notificatio...

free5gc UDR fail-open request handling in PolicyDataSubsToNotifySubsIdPut may allow unintended subscription updates after input errors

Summary A fail-open request handling flaw in the UDR service causes the /nudr-dr/v2/policy-data/subs-to-notify/subsId PUT handler to continue processing requests even after request body retrieval or deserialization errors. This may allow unintended modification of existing Policy Data notificatio...

PT-2026-32976

Name of the Vulnerable Software and Affected Versions free5GC versions 4.2.1 and earlier Description A fail-open request handling flaw exists in the UDR service. The PUT handler for the endpoint '/nudr-dr/v2/policy-data/subs-to-notify/subsId' does not terminate execution after request body...

CLSA-2026-1776098295 pyOpenSSL: Fix of CVE-2026-27448

CVE-2026-27448: fix fail-open in settlsextservernamecallback when callback raises exception...

GHSA-CWQ8-6F96-G3Q4 OpenClaw: Security Scan Failure Does Not Block Plugin Installation (Fail-Open)

Summary Security Scan Failure Does Not Block Plugin Installation Fail-Open Current Maintainer Triage - Status: open - Normalized severity: low - Assessment: Real in shipped v2026.3.28 plugin install flow, but low severity fits because it still requires an operator to choose installation of an...

OpenClaw: Security Scan Failure Does Not Block Plugin Installation (Fail-Open)

Summary Security Scan Failure Does Not Block Plugin Installation Fail-Open Current Maintainer Triage - Status: open - Normalized severity: low - Assessment: Real in shipped v2026.3.28 plugin install flow, but low severity fits because it still requires an operator to choose installation of an...

Authentication Bypass

Authlib is vulnerable to Authentication Bypass. The vulnerability is due to fail-open behavior in the verifyhash function when processing unsupported or unknown algorithms, where hash validation incorrectly returns success, allowing attackers to forge ID Tokens and bypass integrity checks...

CVE-2026-28498

Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to version 1.6.9, a library-level vulnerability was identified in the Authlib Python library concerning the validation of OpenID Connect OIDC ID Tokens. Specifically, the internal hash verification logic verifyhash...

CVE-2026-28498 Authlib: Fail-Open Cryptographic Verification in OIDC Hash Binding

Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to version 1.6.9, a library-level vulnerability was identified in the Authlib Python library concerning the validation of OpenID Connect OIDC ID Tokens. Specifically, the internal hash verification logic verifyhash...

EUVD-2026-12482

Authlib: Fail-Open Cryptographic Verification in OIDC Hash Binding...

GHSA-M344-F55W-2M6J Authlib: Fail-Open Cryptographic Verification in OIDC Hash Binding

Executive Summary A critical library-level vulnerability was identified in the Authlib Python library concerning the validation of OpenID Connect OIDC ID Tokens. Specifically, the internal hash verification logic verifyhash responsible for validating the athash Access Token Hash and chash...

BIT-DISCOURSE-2026-28218 Discourse's Fail-Open Access Control in Data Explorer Plugin Allows Unauthorized SQL Query Execution

Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, fail-open access control in Data Explorer plugin allows any authenticated user to execute SQL queries that have no explicit group assignments, including built-in system queries. Versions 2025.12....

CVE-2026-28218

CVE-2026-28218 affects Discourse: the Data Explorer plugin has a fail-open access control that lets any authenticated user execute SQL queries without explicit group permissions. Affected versions are prior to 2025.12.2, 2026.1.1, and 2026.2.0. Remediation: upgrade to the patched releases (2025.1...