CVE-2026-72760 cti-transmute Following List Exposes User Email Addresses to Authenticated Users

Medium 5.3 Published Updated

Authenticated attackers can collect user email addresses via the following list endpoint in MISP cti-transmute.

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-2026-72760?

CVE-2026-72760 is a medium-severity vulnerability in MISP cti-transmute, published on 10 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Affected versions of MISP cti-transmute disclose users' email addresses through the account following-list endpoint. When an authenticated user follows another account, get_following() includes the followed user's email field in the API response alongside their name, user ID, and follow date. Because the email address is not required for the functionality and other related user lists omit it, an authenticated attacker could systematically follow users and collect their email addresses. The fix removes user.email from the returned object.

Weakness: CWE-200

Which versions are affected by CVE-2026-72760?

How do I fix CVE-2026-72760?

No fix has been published for CVE-2026-72760 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-72760 being exploited?

There is no known exploitation of CVE-2026-72760 in the wild and no public exploit code.

Sources

Also known as GHSA-w385-33fw-3fww.

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