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CVE-2026-104056

9.8 CRITICAL

Published 2026-10-01 · Updated 2026-10-05

AI risk analysis

Summary
The flaw allows a poisoned discovery response to replace all endpoint values with attacker-controlled values, bypassing security measures and potentially leading to unauthorized access or manipulation of the application.
Exploitability
Exploitation is relatively straightforward as it requires control over the discovery response, which may be feasible in environments with misconfigured or unsecured metadata URLs.
Blast radius
If exploited, the vulnerability could have a wide impact, potentially allowing attackers to control critical endpoints and compromise the entire application.
Detection
No reliable host or network indicator is derivable from the published description.
Prioritized remediation
Upgrade to Authlib version 1.7.3 or later.
auth-bypasswebjsonmetadatasecurity

Analysis generated locally by qwen2.5:7b-instruct (no data left the box). AI-assisted — verify against primary sources before acting.

NVD description

Authlib version 1.7.2 and below contains a vulnerability where discovery JSON metadata is cached without validation or issuer-origin binding. This allows a poisoned discovery response to replace all endpoint values with attacker-controlled values rather than endpoint URLs that share the origin of the configured server metadata URL.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-345, CWE-346, CWE-829

All references

Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.

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