CVE-2026-55500: 9router: Exposure of Sensitive Information and Unprotected Database Import/Export Allows Complete Credential Theft and Database Takeover

Severity: critical (CVSS 9.9 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-07-10 · updated 2026-10-25
Weakness: CWE-200

Description

9Router is an AI router & token saver. Prior to 0.4.80, the /api/settings/database endpoint allows full database export (containing all credentials, API keys, OAuth tokens, and settings) and full database import (complete overwrite) without any authentication requirement beyond the ALWAYS_PROTECTED middleware check, which only validates JWT or CLI token. This issue is fixed in version 0.4.80.

Affected products

decolua 9router: before 0.4.80

References

https://github.com/decolua/9router/commit/0c7c9de00ae3ab81d6580e3cc368483c4c03f6fd
https://github.com/decolua/9router/releases/tag/v0.4.80
https://github.com/decolua/9router/security/advisories/GHSA-qvfm-67h2-2qfx
https://github.com/decolua/9router/security/advisories/GHSA-qvfm-67h2-2qfx

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