CVE-2026-21791 HCL Sametime for Android is affected by sensitive information disclosure
Attackers can access sensitive hostnames from application logs in HCL Sametime for Android, potentially aiding further reconnaissance.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-21791?
CVE-2026-21791 is a low-severity vulnerability in HCL Sametime, published on 10 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
HCL Sametime for Android is impacted by a sensitive information disclosure. Hostnames information is written in application logs and certain URL
Weakness: CWE-532
Which versions are affected by CVE-2026-21791?
It affects 1 product.
Products include Hcltech Sametime.
How do I fix CVE-2026-21791?
No fix has been published for CVE-2026-21791 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-21791 being exploited?
There is no known exploitation of CVE-2026-21791 in the wild and no public exploit code.
Other vulnerabilities in HCL Sametime
- CVE-2021-27771 HCL Sametime is susceptible a file transfer service vulnerability
- CVE-2021-27772 HCL Sametime is vulnerable to an information disclosure
- CVE-2021-27770 HCL Sametime is vulnerable to arbitrary HTTP requests
- CVE-2022-42446 HCL Sametime 12.0 and 12.0FP1 anonymous users have directory lookup access
- CVE-2023-50349 HCL Sametime is impacted by a Cross Site Request Forgery (CSRF) vulnerability
Sources
Also known as GHSA-c9qr-x5wx-86hq.