CVE-2026-107145EUVD-2026-110647GHSA-J947-85XJ-MVC2
Lack of rate-limiting in 2fa code check mechanism in twofactor_gauthenticator
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 4640889
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
The twofactor_gauthenticator plugin for Roundcube, a webmail application, is affected. An attacker who already knows a user's password could repeatedly guess the six-digit second-factor code without being slowed down, which could let them bypass two-factor authentication and gain unauthorized access.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original description
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.
Timeline
- CVE published
- First seen by cve.now
Affected versions
- alexandregz twofactor_gauthenticator
fixed in 4640889