CVE-2026-21786 HCL Sametime for iOS is affected by sensitive information disclosure
Attackers can access sensitive hostname information from application logs and URLs in HCL Sametime for iOS.
- 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-2026-21786?
CVE-2026-21786 is a low-severity vulnerability in HCLSoftware Sametime for iOS, published on 5 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 iOS is impacted by a sensitive information disclosure. Hostnames information is written in application logs and certain URLs.
Weakness: CWE-532
Which versions are affected by CVE-2026-21786?
It affects 1 product.
Products include Hcltech Sametime.
How do I fix CVE-2026-21786?
No fix has been published for CVE-2026-21786 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-21786 being exploited?
There is no known exploitation of CVE-2026-21786 in the wild and no public exploit code.
Other vulnerabilities in HCLSoftware Sametime for iOS
- 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-2q32-mmxp-hxr7.