# CVE-2026-6841: Reflected XSS in Request Tracker

> Attackers can execute arbitrary JavaScript in victims' browsers via a crafted URL in Request Tracker.

- **Severity:** Medium 5.1 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 21 May 2026
- **Updated:** 21 May 2026
- **Also known as:** DEBIAN-CVE-2026-6841, GHSA-79vr-q653-q96g, UBUNTU-CVE-2026-6841

## What is CVE-2026-6841?

CVE-2026-6841 is a medium-severity cross-site scripting vulnerability in Best Practical Request Tracker, published on 21 May 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

Request Tracker is vulnerable to a reflected cross-site scripting (XSS) vulnerability via the "Page" parameter in GET requests. An attacker can craft a URL that, when opened, results in arbitrary JavaScript execution in the victim’s browser.

This vulnerability affects versions from 5.0.4 up to 5.0.9 and from 6.0.0 up to 6.0.2.

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation)

## Which versions are affected by CVE-2026-6841?

It affects 1 product.


Products: Bestpractical Request Tracker.

## How do I fix CVE-2026-6841?

Upgrade to a fixed version.

## Is CVE-2026-6841 being exploited?

There is no known exploitation of CVE-2026-6841 in the wild and no public exploit code.

## Other vulnerabilities in Best Practical Request Tracker

- [CVE-2026-44231](https://insights.sbomify.com/CVE-2026-44231/): RT: Privilege escalation and information disclosure via REST 2.0 user collection endpoint (critical 9.1)
- [CVE-2017-5943](https://insights.sbomify.com/CVE-2017-5943/): Information disclosure in n/a (high 8.8)
- [CVE-2017-5944](https://insights.sbomify.com/CVE-2017-5944/): Code injection in n/a (high 8.8)
- [CVE-2023-41259](https://insights.sbomify.com/CVE-2023-41259/): Information disclosure in n/a (high 7.5)
- [CVE-2023-41260](https://insights.sbomify.com/CVE-2023-41260/): Information disclosure in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-6841 and fix it if it is affected.

What it is: CVE-2026-6841 is a medium-severity cross-site scripting vulnerability in Best Practical Request Tracker, published on 21 May 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2026-6841 in the wild and no public exploit code.

Affected product: Best Practical Request Tracker. 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-2026-6841/ (Markdown: https://insights.sbomify.com/CVE-2026-6841/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-6841
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-6841
- OSV: https://osv.dev/vulnerability/CVE-2026-6841

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-6841/
Summaries are generated and may contain mistakes; the official description above is the record.