Auth bypass in Iluobei Miaomiaowu
CVE-2026-119598
Miaomiaowu before 0.9.3 contains an insecure direct object reference vulnerability in /api/user/proxy-provider-configs that allows authenticated users to read other users' configurations. Attackers can iterate the global auto-increment external_subscription_id parameter to disclose override scripts, filter rules, custom request headers and health-check URLs.
Vulnerability class: IDOR (Insecure Direct Object Reference)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/iluobei/miaomiaowu/commit/14ccf37ef82cff06b636454c29db7752cdce7cab (patch)
- github.com/iluobei/miaomiaowu/issues/131 (issue-tracking)
- github.com/iluobei/miaomiaowu/blob/v0.9.2/internal/handler/proxy_provider.go (technical-description)
- github.com/iluobei/miaomiaowu/blob/v0.9.2/internal/storage/traffic.go (technical-description)
- github.com/iluobei/miaomiaowu/releases/tag/v0.9.3 (release-notes)
- hackmd.io/@hieuPenguinnn/miaomiaowu-proxy-provider-config-cross-user-idor (third-party-advisory)
- github.com/iluobei/miaomiaowu (product)
- www.vulncheck.com/advisories/miaomiaowu-before-0.9.3-cross-user-proxy-provider-… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-119598?
- CVE-2026-119598 is a medium-severity vulnerability in Iluobei Miaomiaowu, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.3/10. Published 2026-10-30.
- How severe is CVE-2026-119598?
- Medium severity. CVSS v3 base score is 4.3 out of 10.