CVE-2026-39039 Information disclosure in n/a

Medium 5.3 Published Updated

Attackers can steal JWT tokens and user data from localStorage via XSS, leading to account takeover in BharatMLStack.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-39039?

CVE-2026-39039 is a medium-severity vulnerability in n/a, published on 15 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

In BharatMLStack up to and including v1.3.0, Trufflebox UI stores the JWT authentication token, full user object, and session ID in the browser's localStorage, which is fully accessible to any JavaScript running on the page.

Weakness: CWE-79

Which versions are affected by CVE-2026-39039?

How do I fix CVE-2026-39039?

No fix has been published for CVE-2026-39039 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-39039 being exploited?

There is no known exploitation of CVE-2026-39039 in the wild and no public exploit code.

Sources

Also known as GHSA-g88j-h94f-r5jp.

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