CVE-2026-72548

OpenSignLabs OpenSign - Information Disclosure

Published Aug 11, 2026 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
References
History
Type Values Removed Values Added
First Time appeared Opensignlabs
Opensignlabs opensignserver
Vendors & Products Opensignlabs
Opensignlabs opensignserver
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title OpenSignLabs OpenSign - Information Disclosure
Weaknesses CWE-200
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
TuranSec
Published
Updated
Aug 11, 2026, 3:10 PM
Reserved
Aug 10, 2026, 10:32 AM
Status
Deferred
Published
Aug 11, 2026, 12:17 PM
Modified
Oct 24, 2026, 3:10 PM