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CVE-2026-107146medium6.3

Insufficient session expiration in twofactor_gauthenticator

Impact

The twofactor_gauthenticator plugin for Roundcube is vulnerable to session persistence after failed 2FA verification. Due to the lack of server-side session destruction, an attacker can ignore the logout redirect and keep the session alive. This may allow an attacker who obtains user's password to e.g. brute force the second-factor code.

Source excerpt · CERT-PL

Affected packages

This source has no supported package-version data for matching. You can read the advisory here, but this record alone cannot power a dependency check.

Affected products

Vendor version evidence. Product records are separate from automatic dependency matching.

alexandregz · twofactor_gauthenticator

Other versions: unaffected

Version / rangeSource status
0 to before 4640889affected
CERT-PL version evidence

Original source description

The twofactor_gauthenticator plugin for Roundcube is vulnerable to session persistence after failed 2FA verification. Due to the lack of server-side session destruction, an attacker can ignore the logout redirect and keep the session alive. This may allow an attacker who obtains user's password to e.g. brute force the second-factor code.

This issue was fixed in commit 4640889.

References