CVE-2026-6841 Reflected XSS in Request Tracker

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

Which versions are affected by CVE-2026-6841?

It affects 1 product.

Products include Bestpractical Request Tracker.

How do I fix CVE-2026-6841?

Upgrade to a fixed version.

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-2026-6841 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 RT: Privilege escalation and information disclosure via REST 2.0 user collection endpoint Critical 9.1
• CVE-2017-5943 Information disclosure in n/a High 8.8
• CVE-2017-5944 Code injection in n/a High 8.8
• CVE-2023-41259 Information disclosure in n/a High 7.5
• CVE-2023-41260 Information disclosure in n/a High 7.5

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2026-6841, GHSA-79vr-q653-q96g, UBUNTU-CVE-2026-6841.