# 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.

- **Severity:** Low 3.5 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L`)
- **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 available:** No
- **Published:** 26 Aug 2026
- **Updated:** 26 Aug 2026
- **Also known as:** GHSA-5qmj-327q-chf5

## 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.

Weakness: CWE-20 (Improper Input Validation), CWE-184 (Incomplete List of Disallowed Inputs)

## 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.

## Is CVE-2026-56547 being exploited?

There is no known exploitation of CVE-2026-56547 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-56547 and fix it if it is affected.

What it is: 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.
Exploitation: There is no known exploitation of CVE-2026-56547 in the wild and no public exploit code.

Affected product: HCLSoftware Traveler. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-56547/ (Markdown: https://insights.sbomify.com/CVE-2026-56547/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-56547
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-56547
- OSV: https://osv.dev/vulnerability/CVE-2026-56547

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-56547/
Summaries are generated and may contain mistakes; the official description above is the record.