CVE-2026-55500: 9routers has Exposure of Sensitive Information and Unprotected Database Import/Export, Allowing Complete Credential Theft and Database Takeover

Should you act?

Critical, preconditions apply

Severe if exploited, but exploitation needs conditions that may not apply to you. This signal is computed from CISA KEV, EPSS and CVSS data; it is not an editorial verdict.

• Not in CISA KEV, but CISA’s SSVC assessment records a public proof-of-concept, so attack code exists.
• EPSS 0.7%, percentile 52: FIRST’s model estimates a 0.7% chance of exploitation activity in the next 30 days, higher than 52% of all scored CVEs (moderate). EPSS is a probability, not a verdict.
• Needs an account (low (any account)). Exposure depends on who can log in.
• Only applies if your dependency tree includes 9router (npm) <= 0.4.71, no fixed version listed. Check your lockfile, including transitive dependencies.

What it is

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 ALWAYSPROTECTED middleware check, which only validates JWT or CLI token. This issue is fixed in version 0.4.80.

From the GitHub advisory

Summary

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 ALWAYSPROTECTED middleware check, which only validates JWT or CLI token. Combined with other vulnerabilities (e.g., default password, tunnel exposure), this enables complete database takeover.

Description

The endpoint /api/settings/database is listed in ALWAYSPROTECTED in dashboardGuard.js (line 42), which requires a valid JWT token or CLI token. However, this protection is insufficient because:

1. GET (Export): Returns the complete database including API keys (key field in apiKeys table), OAuth tokens, and all provider credentials. Line 80 in src/lib/db/index.js: apiKeys: db.all("SELECT FROM apiKeys").map(...) — the key field contains the plaintext API key value.

Weakness type: CWE-200.

Product: 9router (npm) · Assigned by: GitHub_M · Published: 2026-07-10

Affected and fixed versions

Severity scores

• Attack vector: network (remotely reachable)
• Attack complexity: low
• Privileges required: low (any account)
• User interaction: none
• Scope: changed (can affect other components)

CVSS measures how bad a flaw is if exploited, not how likely exploitation is. Read it next to the exploitation data below.

Exploitation and urgency

• CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
• CISA SSVC assessment: exploitation poc, automatable no, technical impact total.
• FIRST EPSS (model of 2026-10-21): 0.69% probability of exploitation activity in the next 30 days; percentile 52.

Timeline

• 2026-07-06 — GitHub-reviewed advisory GHSA-qvfm-67h2-2qfx published (critical)
• 2026-07-10 — CVE record last updated
• 2026-07-10 — CVE record published by GitHub_M

Sources and references

Original sources first. Version and fix details should always be confirmed against the vendor or project advisory.

Vulnerability records

1. GitHub Advisory GHSA-qvfm-67h2-2qfx github.com
2. CVE.org record CVE-2026-55500 cve.org
3. NVD entry CVE-2026-55500 nvd.nist.gov

Other references from the CVE record and advisory

1. github.com github.com
2. github.com github.com
3. github.com github.com

Critical npm advisories · Today’s Security Digest