CVE-2026-119049 FreeMail before 5.3.2 Authorization Bypass via /api/create Mailbox Claiming

High 7.2 Published Updated
Exploited in the wild
Not known
Fix
None listed

What is CVE-2026-119049?

CVE-2026-119049 is a high-severity vulnerability in idinging FreeMail, published on 29 Oct 2026.

Official description

FreeMail before 5.3.2 contains an authorization bypass vulnerability that allows authenticated users to claim another user's existing mailbox via the POST /api/create endpoint. Attackers who know a victim's address can become co-owners through assignMailboxToUser to read messages and verification codes, set forwarding, and delete mail.

Weakness: CWE-639

Which versions are affected by CVE-2026-119049?

How do I fix CVE-2026-119049?

No fix has been published for CVE-2026-119049 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-119049 being exploited?

There is no known exploitation of CVE-2026-119049 in the wild and no public exploit code.

Sources

Also known as GHSA-7mjv-78r5-wjqw.

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