Authentication Bypass

Everything BlueTeam Insider has reported about Authentication Bypass: 4 stories, newest first. Part of our Vulnerabilities coverage.

Vulnerabilities

Mage OSS CVE-2026-111823: OAuth Validation Gap in v0.9.80 Triggers 9.8 Critical Auth Bypass

BlueTeam InsiderOct 17, 2026

Mage OSS through version 0.9.80 allows session initialization with unverified OAuth providers, creating a high-risk authentication bypass vector.

Vulnerabilities

IBM MCP Context Forge Hardcoded Secret Before 1.0.2 Enables Full Platform Control Without Credentials

BlueTeam InsiderOct 13, 2026

A hardcoded secret in IBM MCP Context Forge versions before 1.0.2 enables remote attackers to forge administrative tokens, granting full platform control without valid credentials.

Vulnerabilities

BotSharp Authentication Bypass via Hardcoded JWT Key Exposes Admin Access

BlueTeam InsiderOct 11, 2026

A critical flaw in BotSharp 5.2.0 allows attackers to forge tokens using a hardcoded secret, granting full administrative control without credentials.

Vulnerabilities

Nginx UI Auth Bypass Allows JWT-Only Cluster Control in High-Severity CVE-2026-107813

BlueTeam InsiderOct 9, 2026

An incomplete patch in Nginx UI allows attackers with valid tokens to manage cluster nodes and restart services without re-authenticating via second factor.