HCL Traveler prior 14.5.1.1 input validation

Summaryinfo

A vulnerability labeled as critical has been found in HCL Traveler prior 14.5.1.1. Affected is an unknown function. Executing a manipulation can lead to input validation. The identification of this vulnerability is CVE-2026-56547. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in HCL Traveler prior 14.5.1.1. It has been declared as critical. This vulnerability affects an unknown part. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect availability. CVE summarizes:

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.

The advisory is shared for download at support.hcl-software.com. This vulnerability was named CVE-2026-56547 since 06/22/2026. The exploitation appears to be easy. The attack can be initiated remotely. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 08/26/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

• HCL

Name

• Traveler

Version

• <14.5.1.1

License

• commercial

CPE 2.3info

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CPE 2.2info

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