Auth bypass in Decolua 9router
CVE-2026-62328
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 · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.006 (48.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 48.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Decolua 9router — versions 0
Weakness classification (CWE)
References
- github.com/decolua/9router/security/advisories/GHSA-vjc7-jrh9-9j86 (vendor-advisory)
- www.vulncheck.com/advisories/9router-unauthenticated-information-disclosure-via… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-62328?
- CVE-2026-62328 is a high-severity vulnerability in Decolua 9router, classified under Exposure of Private Personal Information to an Unauthorized Actor. CVSS score: 7.5/10. Published 2026-07-13.
- How severe is CVE-2026-62328?
- High severity. CVSS v3 base score is 7.5 out of 10.