Auth bypass in Jeequan Jeepay
CVE-2026-111607
Jeepay through 3.2.9 contains an insecure direct object reference vulnerability that allows authenticated merchant users to overwrite another merchant application's payment channel configuration by supplying a victim infoId to MchPayInterfaceConfigController.saveOrUpdate. Attackers holding the default ENT_MCH_PAY_CONFIG_ADD permission can replace signing keys, certificates, and fee rates to break or redirect the victim merchant's payment processing.
Vulnerability class: IDOR (Insecure Direct Object Reference)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L.
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
- hackmd.io/@hieuPenguinnn/jeepay-mch-payconfig-write-and-division-receiver-delet… (third-party-advisory)
- github.com/jeequan/jeepay/blob/V3.2.9/jeepay-merchant/src/main/java/com/jeequan… (technical-description)
- www.vulncheck.com/advisories/jeepay-through-3.2.9-idor-via-post-api-mch-payconf… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-111607?
- CVE-2026-111607 is a high-severity vulnerability in Jeequan Jeepay, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 7.1/10. Published 2026-10-16.
- How severe is CVE-2026-111607?
- High severity. CVSS v3 base score is 7.1 out of 10.