CVE-2026-56589 HCL BigFix Service Management is affected by multiple security vulnerabilities.

High 7.2 Published 1 Oct 2026 Updated 6 Oct 2026

Attackers can inject malicious scripts into HCL BigFix Service Management to hijack sessions and steal sensitive data from victims.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-56589?

CVE-2026-56589 is a high-severity cross-site scripting vulnerability in HCL BigFix Service Management, published on 1 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

HCL BigFix Service Management is affected by a Stored Cross-Site Scripting (XSS) vulnerability, which could allow an attacker to inject and store malicious scripts within the application that execute when a victim views the affected page, enabling session hijacking and the theft of sensitive data.

Weakness: CWE-79

Which versions are affected by CVE-2026-56589?

It affects 1 product.

Products include Hcltech Bigfix Service Management.

How do I fix CVE-2026-56589?

No fix has been published for CVE-2026-56589 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-2026-56589 being exploited?

There is no known exploitation of CVE-2026-56589 in the wild and no public exploit code.

Sources

Also known as GHSA-6pm7-6945-rv79.