https://cve.radiocsirt.org Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Wed, 07 Oct 2026 17:45:24 +0000 https://cve.radiocsirt.org/vuln/euvd-2026-310036 EUVD-2026-310036 https://cve.radiocsirt.org/vuln/euvd-2026-310036 https://cve.radiocsirt.org/vuln/fkie_cve-2026-41161 <p>Sync-in Server is a secure, open-source platform for file storage, sharing, collaboration, and syncing. Prior to version 2.2.0, the /api/auth/login endpoint contains a logic flaw that allows unauthenticated remote attackers to enumerate valid usernames by measuring the application&#39;s response time. This issue has been patched in version 2.2.0.</p> <p>Sync-in Server is a secure, open-source platform for file storage, sharing, collaboration, and syncing. Prior to version 2.2.0, the /api/auth/login endpoint contains a logic flaw that allows unauthenticated remote attackers to enumerate valid usernames by measuring the application&#39;s response time. This issue has been patched in version 2.2.0.</p> https://cve.radiocsirt.org/vuln/fkie_cve-2026-41161 https://cve.radiocsirt.org/vuln/ghsa-43fj-qp3h-hrh5 <p><strong>Affected:</strong> npm: @sync-in/server</p> <p>### Summary The `/api/auth/login` endpoint contains a logic flaw that allows unauthenticated remote attackers to enumerate valid usernames by measuring the application&#39;s response time.</p> <p>### Details The logic flaw can be located at the below point in source: https://github.com/Sync-in/server/blob/7868bb2b3025f92e6c38087456304758713971b2/backend/src/applications/users/services/users-queries.service.ts#L91-L95</p> <p>Endpoints used for authentication should respond to the user with a consistent cadence, preventing remote actors from deriving sensitive information about an application based on backend behavior. In the case of authentication endpoints, this timing discrepancy is often caused by short-circuiting due to the lack of a matched user to compare against - as is the case with Sync-in.</p> <p>### Validation TickTock Enum (Burp Suite Extension) was utilized to validate this finding. Authentication attempts with a valid username see a response from the application at around 350-400ms on average, while invalid usernames are returned at only 95-100ms on average. &lt;img width=&#34;1302&#34; height=&#34;284&#34; alt=&#34;image&#34; src=&#34;https://github.com/user-attachments/assets/31eeb72a-c3c2-4057-ac69-c0c92f0bbd4e&#34; /&gt;</p> <p>### Impact An unauthenticated remote attacker can enumerate valid usernames. This significantly weakens the application&#39;s security posture by facilitating targeted brute-force attacks, stuffing, social engineering, and a suite of other more targeted attacks.</p> <p><strong>Affected:</strong> npm: @sync-in/server</p> <p>### Summary The `/api/auth/login` endpoint contains a logic flaw that allows unauthenticated remote attackers to enumerate valid usernames by measuring the application&#39;s response time.</p> <p>### Details The logic flaw can be located at the below point in source: https://github.com/Sync-in/server/blob/7868bb2b3025f92e6c38087456304758713971b2/backend/src/applications/users/services/users-queries.service.ts#L91-L95</p> <p>Endpoints used for authentication should respond to the user with a consistent cadence, preventing remote actors from deriving sensitive information about an application based on backend behavior. In the case of authentication endpoints, this timing discrepancy is often caused by short-circuiting due to the lack of a matched user to compare against - as is the case with Sync-in.</p> <p>### Validation TickTock Enum (Burp Suite Extension) was utilized to validate this finding. Authentication attempts with a valid username see a response from the application at around 350-400ms on average, while invalid usernames are returned at only 95-100ms on average. &lt;img width=&#34;1302&#34; height=&#34;284&#34; alt=&#34;image&#34; src=&#34;https://github.com/user-attachments/assets/31eeb72a-c3c2-4057-ac69-c0c92f0bbd4e&#34; /&gt;</p> <p>### Impact An unauthenticated remote attacker can enumerate valid usernames. This significantly weakens the application&#39;s security posture by facilitating targeted brute-force attacks, stuffing, social engineering, and a suite of other more targeted attacks.</p> https://cve.radiocsirt.org/vuln/ghsa-43fj-qp3h-hrh5