The twofactor_gauthenticator plugin for Roundcube is vulnerable to 2fa authentication bypass by spoofed client address headers. Due to the lack of validation of the Client-IP and X-Forwarded-For headers, an attacker who obtains user's password can spoof a whitelisted IP address, resulting in the second factor being bypassed.
This issue was fixed in commit 4640889.
This issue was fixed in commit 4640889.
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Affected Vendors & Products
Advisories
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Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Tue, 27 Oct 2026 09:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | The twofactor_gauthenticator plugin for Roundcube is vulnerable to 2fa authentication bypass by spoofed client address headers. Due to the lack of validation of the Client-IP and X-Forwarded-For headers, an attacker who obtains user's password can spoof a whitelisted IP address, resulting in the second factor being bypassed. This issue was fixed in commit 4640889. | |
| Title | Authentication bypass by spoofing in twofactor_gauthenticator | |
| First Time appeared |
Alexandregz
Alexandregz twofactor Gauthenticator |
|
| Weaknesses | CWE-290 | |
| CPEs | cpe:2.3:a:alexandregz:twofactor_gauthenticator:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Alexandregz
Alexandregz twofactor Gauthenticator |
|
| References |
| |
| Metrics |
cvssV4_0
|
Projects
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Status: PUBLISHED
Assigner: CERT-PL
Published:
Updated: 2026-10-27T09:36:01.938Z
Reserved: 2026-10-07T08:44:03.177Z
Link: CVE-2026-107147
No data.
Status : Received
Published: 2026-10-27T10:16:54.290
Modified: 2026-10-27T10:16:54.290
Link: CVE-2026-107147
No data.
OpenCVE Enrichment
Updated: 2026-10-27T10:30:11Z
Weaknesses