PT-2026-57219 · 9Router · 9Router

Published 2026-07-10 · Updated 2026-07-10 · CVE-2026-55638

Positive Technologies (AI Summary)

CVSS v3.1

8.6

High

Base vector

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

Name of the Vulnerable Software and Affected Versions 9Router versions prior to 0.5.2

Description An authentication bypass exists because the software fails to protect the /codex endpoint in src/dashboardGuard.js before next.config.mjs rewrites /codex/* to /api/v1/responses. A remote unauthenticated attacker can send requests to the /codex/* endpoint to bypass the API-key gate, forcing the server to make upstream provider calls using operator-stored LLM provider credentials.

Recommendations Update to version 0.5.2.

Exploit

Fix

Missing Authorization

Incorrect Authorization

Weakness Enumeration

CWE-862

CWE-863

Related Identifiers

CVE-2026-55638

Affected Products

9Router

References · 6

• 🔥 https://github.com/decolua/9router/security/advisories/GHSA-8gmq-j984-vp4r · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-55638 · Security Note
• https://github.com/decolua/9router/commit/b282f0554972ea35281520738759d76abcd0b0b3 · Note
• https://github.com/decolua/9router/releases/tag/v0.5.2 · Note
• https://twitter.com/CVEnew/status/2075613566548238501 · Twitter Post
• https://twitter.com/infoflowcloud/status/2075615060420968771 · Twitter Post