CVE-2026-41418 | RARgames 4gaBoards up to 3.3.4 Login Endpoint /api/access-tokens bcrypt.compareSync timing discrepancy (GHSA-8mj9-p99h-jhxp)

VDB-359534 · CVE-2026-41418 · GHSA-8MJ9-P99H-JHXP RARGAMES 4GABOARDS UP TO 3.3.4 LOGIN ENDPOINT /API/ACCESS-TOKENS BCRYPT.COMPARESYNC TIMING DISCREPANCY HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 5.2 $0-$5k 1.12+ Summaryinfo A vulnerability classified as problematic was found in RARgames 4gaBoards up to 3.3.4. Affected is the function bcrypt.compareSync of the file /api/access-tokens of the component Login Endpoint. Such manipulation leads to timing discrepancy. This vulnerability is traded as CVE-2026-41418. The attack may be launched remotely. There is no exploit available. Upgrading the affected component is advised. Detailsinfo A vulnerability, which was classified as problematic, has been found in RARgames 4gaBoards up to 3.3.4. Affected by this issue is the function bcrypt.compareSync of the file /api/access-tokens of the component Login Endpoint. The manipulation with an unknown input leads to a timing discrepancy vulnerability. Using CWE to declare the problem leads to CWE-208. Two separate operations in a product require different amounts of time to complete, in a way that is observable to an actor and reveals security-relevant information about the state of the product, such as whether a particular operation was successful or not. Impacted is confidentiality. CVE summarizes: 4ga Boards is a boards system for realtime project management. Prior to 3.3.5, 4ga Boards is vulnerable to user enumeration via a timing side-channel in the login endpoint (POST /api/access-tokens). When an invalid username/email is provided, the server responds immediately (~17ms average). When a valid username/email is provided with an incorrect password, the server first performs a bcrypt.compareSync() operation (~74ms average) before responding. This ~4.4× timing difference is trivially detectable even over a network — a single request suffices. This vulnerability is fixed in 3.3.5. The advisory is available at github.com. This vulnerability is handled as CVE-2026-41418 since 04/20/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1592 by the MITRE ATT&CK project. Upgrading to version 3.3.5 eliminates this vulnerability. Productinfo Type Forum Software Vendor RARgames Name 4gaBoards Version 3.3.0 3.3.1 3.3.2 3.3.3 3.3.4 Website Product: https://github.com/RARgames/4gaBoards/ CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 5.3 VulDB Meta Temp Score: 5.2 VulDB Base Score: 5.3 VulDB Temp Score: 5.1 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 5.3 CNA Vector (GitHub_M): 🔒 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: Timing discrepancy CWE: CWE-208 / CWE-203 / CWE-200 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: 4gaBoards 3.3.5 Timelineinfo 04/20/2026 CVE reserved 04/24/2026 +4 days Advisory disclosed 04/24/2026 +0 days VulDB entry created 04/24/2026 +0 days VulDB entry last update Sourcesinfo Product: github.com Advisory: GHSA-8mj9-p99h-jhxp Status: Confirmed CVE: CVE-2026-41418 (🔒) GCVE (CVE): GCVE-0-2026-41418 GCVE (VulDB): GCVE-100-359534 Entryinfo Created: 04/24/2026 21:24 Changes: 04/24/2026 21:24 (68) Complete: 🔍 Cache ID: 99:223:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸