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...

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...

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...

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 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...

Exploit for CVE-2026-1357

CVE-2026-1357 — WPvivid Backup & Migration RCE CVE Credit...

CVE-2023-25561

DataHub is an open-source metadata platform. In the event a system is using Java Authentication and Authorization Service JAAS authentication and that system is given a configuration which contains an error, the authentication for the system will fail open and allow an attacker to login using any...

EUVD-2018-9694

Malware in sbrugna...

EUVD-2000-0477

Malware in sbrugna...

Fail-Open Architecture for Secure Inline Protection on Azure

Every inline deployment introduces a tradeoff: enhanced inspection versus increased risk of downtime. Inline protection is important, especially for APIs, which are now the most targeted attack surface, but so is consistent uptime and performance. This is where a fail-open architecture comes in...

CVE-2024-20508

A vulnerability in Cisco Unified Threat Defense UTD Snort Intrusion Prevention System IPS Engine for Cisco IOS XE Software could allow an unauthenticated, remote attacker to bypass configured security policies or cause a denial of service DoS condition on an affected device. This vulnerability is...

CVE-2013-3280

EMC RSA Authentication Agent 7.1.x before 7.1.2 for Web for Internet Information Services has a fail-open design, which allows remote attackers to bypass intended access restrictions via vectors that trigger an agent crash...