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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.

PUBLISHED Reserved 2026-07-13 | Published 2026-07-13 | Updated 2026-07-13 | Assigner VulnCheck




HIGH: 8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

HIGH: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Problem types

Missing Authorization

Exposure of Private Personal Information to an Unauthorized Actor

Product status

Default status
unaffected

Any version
affected

Credits

Ngô Tấn Tài (@newnol) reporter

References

github.com/...router/security/advisories/GHSA-vjc7-jrh9-9j86 (GitHub Security Advisory (GHSA-vjc7-jrh9-9j86)) vendor-advisory

www.vulncheck.com/...tion-disclosure-via-api-usage-endpoints (VulnCheck Advisory: 9Router 0.4.41 - Unauthenticated Information Disclosure via API Usage Endpoints) third-party-advisory

cve.org (CVE-2026-62328)

nvd.nist.gov (CVE-2026-62328)

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