CVE-2026-21783 HCL Traveler is affected by sensitive information disclosure
HCL Traveler exposes sensitive system details in error messages, allowing attackers to gather intelligence for targeted attacks.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-21783?
CVE-2026-21783 is a medium-severity vulnerability in HCLSoftware Traveler, published on 24 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
HCL Traveler is affected by sensitive information disclosure. The application generates some error messages that provide detailed information about errors and failures, such as internal paths, file names, sensitive tokens, credentials, error codes, or stack traces. Attackers could exploit this information to gain insights into the system's architecture and potentially launch targeted attacks.
Weakness: CWE-209
Which versions are affected by CVE-2026-21783?
It affects 1 product.
Products include Hcltech Traveler.
How do I fix CVE-2026-21783?
No fix has been published for CVE-2026-21783 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-21783 being exploited?
There is no known exploitation of CVE-2026-21783 in the wild and no public exploit code.
Other vulnerabilities in HCLSoftware Traveler
- CVE-2022-27561 HCL Traveler is susceptible to a Reflected Cross-Site Scripting vulnerability in the web admin (LotusTraveler.nsf)
- CVE-2019-4409 Cross-site scripting in HCL Traveler
- CVE-2021-27778 Cross-site scripting in HCL Traveler
- CVE-2025-0278 An internal path disclosure vulnerability affects HCL Traveler
- CVE-2025-0279 HCL Traveler is affected by generation of error messages containing sensitive information
Sources
Also known as GHSA-w3p4-547j-v9cv.