CVE-2026-119049

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.

CVSS v3 7.6 HIGH

7.6^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 4.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
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

Configurations

No configuration.

History

29 Oct 2026, 14:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-29 14:17

Updated : 2026-10-29 16:21

NVD link : CVE-2026-119049

Mitre link : CVE-2026-119049

CVE.ORG link : CVE-2026-119049

JSON object : View

Products Affected

No product.

CWE

CWE-639

Authorization Bypass Through User-Controlled Key

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