CVE-2026-119049

CVSS 7.6 (high) · published 2026-10-29

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

Source: NVD CVE-2026-119049

References

• https://github.com/idinging/freemail
• https://github.com/idinging/freemail/blob/a95c1710e7eeb9f2c74a49ef962f4f43a36695b3/src/db/users.js#L137-L163
• https://github.com/idinging/freemail/commit/62ed3afdbb4de90a135c12de928e586caf01b5a1
• https://github.com/idinging/freemail/issues/73
• https://github.com/idinging/freemail/releases/tag/v5.3.2
• https://www.vulncheck.com/advisories/freemail-before-5.3.2-authorization-bypass-via-api-create-mailbox-claiming

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