CVE-2026-56547 An input reflection vulnerability affects HCL Traveler
HCL Traveler reflects user input in Apple profiles, allowing self-XSS on the attacker's device, though it does not compromise other users.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-56547?
CVE-2026-56547 is a low-severity cross-site scripting vulnerability in HCLSoftware Traveler, published on 26 Aug 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
The Apple profile generated for the Apple built-in Mail, Calendar and Contacts account to synchronize with HCL Traveler requires the Logon Name and Mail Address to be embedded in them. The values cannot be changed later on, so the Apple profile generation page asks for those values and reflects them back in the generated Apple profile. The Apple profile is not usable without additional information and only allows the attacker to attack their own device, but HCL Traveler could at least check that the values submitted and reflected back in the Apple profile are found in the Domino directory entry for the already authenticated user.
Which versions are affected by CVE-2026-56547?
How do I fix CVE-2026-56547?
No fix has been published for CVE-2026-56547 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-56547 being exploited?
There is no known exploitation of CVE-2026-56547 in the wild and no public exploit code.
Sources
Also known as GHSA-5qmj-327q-chf5.