CVE-2026-72548 OpenSignLabs OpenSign - Information Disclosure
Unauthenticated attackers can retrieve any organization's tenant configuration data via the gettenant Parse cloud function, exposing sensitive information.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-72548?
CVE-2026-72548 is a high-severity vulnerability in OpenSignLabs OpenSign, published on 11 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
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.
Weakness: CWE-200
Which versions are affected by CVE-2026-72548?
How do I fix CVE-2026-72548?
No fix has been published for CVE-2026-72548 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-72548 being exploited?
There is no known exploitation of CVE-2026-72548 in the wild and no public exploit code.
Sources
Also known as GHSA-5w47-3cxw-fxxf.