Quick answers
- Is CVE-2026-72548 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-72548 being exploited in the wild.
- How severe is CVE-2026-72548?
- High severity, with a CVSS score of 7.5, published 11 August 2026.
- Which products and versions are affected?
- OpenSignLabs OpenSign through 2.37.0.
- Is there a fix for CVE-2026-72548?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-72548 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-72548?
- Check whether you run OpenSignLabs OpenSign at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
The vulnerability is an unauthenticated information disclosure in the gettenant Parse cloud function within OpenSignLabs OpenSign through version 2.37.0. The function accepts a contactId parameter and returns complete tenant records without verifying the caller's identity or authorization to access that data. An attacker can enumerate contactId values and retrieve full tenant configuration for any organization in the system over the network. This allows exposure of sensitive organizational data such as tenant settings, API keys, or other configuration details that could be leveraged for further compromise.
Affected products
- OpenSignLabs OpenSign through 2.37.0
Timeline
- 2026-08-11: disclosed