What is CVE-2026-72689?

CVE-2026-72689 is a high-severity vulnerability in Opensignlabs Opensignserver, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 7.5/10. Published 2026-08-10.

How severe is CVE-2026-72689?

High severity. CVSS v3 base score is 7.5 out of 10.

Auth bypass in Opensignlabs Opensignserver

CVE-2026-72689

A broken object-level authorization vulnerability in OpenSignLabs opensignserver through 2.37.0 allows an unauthenticated remote attacker to read complete contract records via the getDocument Parse cloud function. The function fetches docu…

Vulnerability class: IDOR (Insecure Direct Object Reference)

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.

Affected products

Opensignlabs Opensignserver — versions 0

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c (third-party-advisory)

Frequently asked questions

What is CVE-2026-72689?: CVE-2026-72689 is a high-severity vulnerability in Opensignlabs Opensignserver, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 7.5/10. Published 2026-08-10.
How severe is CVE-2026-72689?: High severity. CVSS v3 base score is 7.5 out of 10.