CVE-2026-33550 | Alinto SOGo up to 5.12.4 single-factor authentication

VDB-352397 · CVE-2026-33550 · GCVE-0-2026-33550 ALINTO SOGO UP TO 5.12.4 SINGLE-FACTOR AUTHENTICATION HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 1.9 $0-$5k 3.19 Summaryinfo A vulnerability has been found in Alinto SOGo up to 5.12.4 and classified as problematic. Affected by this issue is some unknown functionality. The manipulation leads to use of single-factor authentication. This vulnerability is uniquely identified as CVE-2026-33550. The attack is possible to be carried out remotely. No exploit exists. The affected component should be upgraded. Detailsinfo A vulnerability, which was classified as problematic, has been found in Alinto SOGo up to 5.12.4. This issue affects an unknown part. The manipulation with an unknown input leads to a use of single-factor authentication vulnerability. Using CWE to declare the problem leads to CWE-308. The use of single-factor authentication can lead to unnecessary risk of compromise when compared with the benefits of a dual-factor authentication scheme. Impacted is integrity. The summary by CVE is: SOGo before 5.12.5 does not renew the OTP if a user disables/enables it, and has a too short length (only 12 digits instead of the 20 recommended). The advisory is shared at github.com. The identification of this vulnerability is CVE-2026-33550 since 03/22/2026. The exploitation is known to be difficult. The attack may be initiated remotely. Additional levels of successful authentication are required for exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1111 for this issue. Upgrading to version 5.12.5 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 83d4c522f87cfde0ba543837d9b24c3479083ec2 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version. Productinfo Vendor Alinto Name SOGo Version 5.12.0 5.12.1 5.12.2 5.12.3 5.12.4 License open-source Website Product: https://github.com/Alinto/sogo/ CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 2.0 VulDB Meta Temp Score: 1.9 VulDB Base Score: 2.0 VulDB Temp Score: 1.9 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 2.0 CNA Vector (MITRE): 🔒 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Use of single-factor authentication CWE: CWE-308 / CWE-287 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: Upgrade Status: 🔍 0-Day Time: 🔒 Upgrade: SOGo 5.12.5 Patch: 83d4c522f87cfde0ba543837d9b24c3479083ec2 Timelineinfo 03/22/2026 Advisory disclosed 03/22/2026 +0 days CVE reserved 03/22/2026 +0 days VulDB entry created 03/22/2026 +0 days VulDB entry last update Sourcesinfo Product: github.com Advisory: 83d4c522f87cfde0ba543837d9b24c3479083ec2 Status: Confirmed CVE: CVE-2026-33550 (🔒) GCVE (CVE): GCVE-0-2026-33550 GCVE (VulDB): GCVE-100-352397 Entryinfo Created: 03/22/2026 05:20 Changes: 03/22/2026 05:20 (66) Complete: 🔍 Cache ID: 99:834:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸