High severity7.6NVD Advisory· Published Oct 29, 2026
CVE-2026-119049
CVE-2026-119049
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.
Patches
Vulnerability mechanics
References
5- github.com/idinging/freemail/blob/a95c1710e7eeb9f2c74a49ef962f4f43a36695b3/src/db/users.jsnvd
- github.com/idinging/freemail/commit/62ed3afdbb4de90a135c12de928e586caf01b5a1nvd
- github.com/idinging/freemail/issues/73nvd
- github.com/idinging/freemail/releases/tag/v5.3.2nvd
- www.vulncheck.com/advisories/freemail-before-5.3.2-authorization-bypass-via-api-create-mailbox-claimingnvd
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