VU#645818: Xerj Console API Authentication Bypass Leads to Unauthorized Credential Minting

Overview An authentication bypass vulnerability in the Xerj Console API allows sessions to bypass passkey-backed requirements during token issuance. By exploiting this flaw, an attacker with an existing valid token can create independent, persistent successor credentials directly through the console API. This allows the attacker to maintain access and potentially escalate privileges within the Xerj ecosystem, even if the initial token is revoked. Description Xerj is an open-source search and indexing engine tailored specifically for AI agents utilizing the Elasticsearch API, allowing AI models to query a structured index. The vulnerability, CVE-2026-97406 , stems from a flaw in how session s

Why it matters

The weakness can enable direct compromise with limited attacker prerequisites, making internet-facing assets the first place to look.

What defenders should do

Identify affected versions, prioritize internet-facing systems, and apply the vendor remediation.

Verify at the source

CyberKit curates and prioritizes; the source remains authoritative. Read the original advisory at kb.cert.org →