What is CVE-2026-111719?

CVE-2026-111719 is a medium-severity vulnerability in Roncoo Roncoo-Pay, classified under Missing Authentication for Critical Function. CVSS score: 5.9/10. Published 2026-10-16.

How severe is CVE-2026-111719?

Medium severity. CVSS v3 base score is 5.9 out of 10.

Auth bypass in Roncoo Roncoo-Pay

CVE-2026-111719

Roncoo-pay through commit 9428382 contains a missing authorization vulnerability in F2FPayController.orderQuery that allows unauthenticated attackers to retrieve payment records by supplying a trxNo parameter. Attackers can guess transaction numbers, a '7' prefix plus a snowflake ID, to obtain the full serialized payment record of any merchant.

Vulnerability class: Broken Authentication

Published 2026-10-16 · last modified 2026-10-16.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/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

Roncoo Roncoo-Pay

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

hackmd.io/@hieuPenguinnn/roncoo-pay-f2f-order-query-unauth-record-disclosure (third-party-advisory)
github.com/roncoo/roncoo-pay/blob/9428382af21cd5568319eae7429b7e1d0332ff40/ronc… (technical-description)
www.vulncheck.com/advisories/roncoo-pay-through-commit-9428382-information-disc… (third-party-advisory)

Frequently asked questions

What is CVE-2026-111719?: CVE-2026-111719 is a medium-severity vulnerability in Roncoo Roncoo-Pay, classified under Missing Authentication for Critical Function. CVSS score: 5.9/10. Published 2026-10-16.
How severe is CVE-2026-111719?: Medium severity. CVSS v3 base score is 5.9 out of 10.