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High · 7.5 CVE-2026-72548 EUVD-2026-56018GHSA-5w47-3cxw-fxxf

OpenSignLabs OpenSign - Information Disclosure

Published Aug 11, 2026 · Updated Aug 11, 2026 · Assigned by TuranSec

Description

An information disclosure vulnerability in OpenSignLabs OpenSign through 2.37.0 allows unauthenticated remote attackers to retrieve any organisation tenant record via the gettenant Parse cloud function. The function accepts a contactId parameter and returns the full tenant record without authentication or authorization checks. An attacker can enumerate and disclose tenant configuration data for any organisation in the system.

Affected products

VendorProductAffectedFixed
OpenSignLabs OpenSign ≤ 2.37.0 —

References