CVE-2026-72548
High
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.
SeverityHigh
CVSS7.5
Exploit probability—
ProductOpenSign
PublishedAug 11, 2026
First seenAug 11, 2026
Weakness typeCWE-200Sensitive information exposure
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| OpenSignLabs OpenSign | v ≤ 2.37.0 | — |
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