Vulnerability · Published Aug 11, 2026 · Assigned by TuranSec

CVE-2026-72548OpenSignLabs OpenSign - Information Disclosure

High 7.5

In plain English

A high-severity information exposure in OpenSign from OpenSignLabs. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 50% of all known vulnerabilities).

Severity (CVSS 3.1)7.5High

Exploit odds (30 days)0.6%top 50.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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 (as reported)

Vendor	Product	Versions
OpenSignLabs	OpenSign	0 – through 2.37.0

Weakness: CWE-200 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

References

Project Repository