CVE-2026-107145

UNKNOWN 0.0

Lack of rate-limiting in 2fa code check mechanism in twofactor_gauthenticator

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

The twofactor_gauthenticator plugin for Roundcube is vulnerable to brute-forcing of the second-factor code. Due to the lack of rate limiting, an attacker who obtains user's password can submit arbitrary 6-digit codes, resulting in second-factor bypass and unauthorized access to the system. This issue was fixed in commit 4640889.

CWE	CWE-307
Vendor	alexandregz
Product	twofactor_gauthenticator
Published	Oct 27, 2026

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Affected Versions

alexandregz / twofactor_gauthenticator

0 < 4640889

References

NVD ↗ CVE.org ↗ EPSS Data ↗

cert.pl: https://cert.pl/en/posts/2026/10/CVE-2026-107145 github.com: https://github.com/alexandregz/twofactor_gauthenticator/blob/master/CHANGES-2FA-SECURITY.en.md

Credits

Marek Figielski (Vanilla.pl)