CVE-2026-58270

creationtimestamp| type| source ---|---|--- 2026-09-22 16:35:08+00:00| published-proof-of-concept| https://github.com/Sync-in/server/security/advisories/GHSA-jx63-h26r-8cph 2026-09-22 19:32:27+00:00| seen| https://gist.github.com/alon710/b536815814568f1fe4f87321daa1216e...

EUVD-2026-84199

Sync-in Server has Username/Login Enumeration via Timing Side-Channel on POST /api/auth/login incomplete fix of the prior timing-attack advisory...

EUVD-2026-84198

Sync-in Server has a ReDoS via Unsanitized Regex in Sync Diff pathFilters...

EUVD-2026-84115

Sync-in Server has a complete 2FA Bypass via POST /api/auth/token...

EUVD-2026-84112

@sync-in/server vulnerable to TOTP Brute-Force via POST /api/app/sync/register...

CVE-2026-58270

Sync-in Server is an open-source platform for file storage, sharing, collaboration, and syncing. Prior to version 2.4.0, the sync diff endpoint compiles a user-supplied string into a RegExp with no complexity validation. A catastrophic-backtracking pattern e.g. ^a++b blocks the Node.js event loop...

CVE-2026-58272

Sync-in Server (open-source file storage and collaboration platform) prior to 2.4.1 exposes a timing side-channel on the POST /api/auth/login endpoint. The root cause is that authentication attempts for nonexistent accounts skip the bcrypt comparison performed for existing accounts, producing a m...

CVE-2026-58270

Sync-in Server , an open-source platform for file storage, sharing, and syncing, is vulnerable to a ReDoS (Regular Expression Denial of Service) in the sync diff pathFilters parameter prior to version 2.4.0 . The endpoint compiles a user-supplied string directly into a RegExp without complexity v...

CVE-2026-58271

Sync-in Server is an open-source platform for file storage, sharing, collaboration, and syncing. Prior to version 2.4.0, POST /api/app/sync/register accepts credentials and a TOTP code to register a desktop sync client. On a failed TOTP, SyncClientsManager.register calls updateAccessesuser, ip,...

CVE-2026-58269

Sync-in Server is an open-source platform for file storage, sharing, collaboration, and syncing. Prior to version 2.4.0, POST /api/auth/token authenticates with username and password only, then calls getTokens, which returns full access and refresh JWTs without checking whether the account has TO...

CVE-2026-58269 Sync-in Server has a complete 2FA Bypass via `POST /api/auth/token`

Sync-in Server is an open-source platform for file storage, sharing, collaboration, and syncing. Prior to version 2.4.0, POST /api/auth/token authenticates with username and password only, then calls getTokens, which returns full access and refresh JWTs without checking whether the account has TO...

CVE-2026-58269

Sync-in Server is an open-source platform for file storage, sharing, collaboration, and syncing. Prior to version 2.4.0 , the POST /api/auth/token endpoint authenticates users with only username and password, then calls getTokens(), which returns full access and refresh JWTs without checking whet...

CVE-2026-58269 Sync-in Server has a complete 2FA Bypass via `POST /api/auth/token`

Sync-in Server is an open-source platform for file storage, sharing, collaboration, and syncing. Prior to version 2.4.0, POST /api/auth/token authenticates with username and password only, then calls getTokens, which returns full access and refresh JWTs without checking whether the account has TO...

CVE-2026-58271 @sync-in/server vulnerable to TOTP Brute-Force via `POST /api/app/sync/register`

Sync-in Server is an open-source platform for file storage, sharing, collaboration, and syncing. Prior to version 2.4.0, POST /api/app/sync/register accepts credentials and a TOTP code to register a desktop sync client. On a failed TOTP, SyncClientsManager.register calls updateAccessesuser, ip,...

CVE-2026-58271

Sync-in Server , an open-source platform for file storage and collaboration, is vulnerable to TOTP brute-force in versions prior to 2.4.0 . The endpoint POST /api/app/sync/register fails to increment the passwordAttempts counter on TOTP failure due to a freeze branch in updateAccesses(), so the l...

CVE-2026-47684

Sync-in Server is a secure, open-source platform for file storage, sharing, collaboration, and syncing. Prior to version 2.3.0, the private IP blocklist regex used in the URL download feature does not match IPv4-mapped IPv6 addresses e.g. ::ffff:127.0.0.1, allowing SSRF protection to be bypassed ...

CVE-2026-47684

CVE-2026-47684 — Sync-in Server SSRF bypass (IPv4-mapped IPv6 addresses) Affected product: Sync-in Server (file storage/sharing/collaboration). Vulnerability: The private IP blocklist regex (regExpPrivateIP) used in the URL download feature does not match IPv4-mapped IPv6 addresses (e.g., ::ffff:...

CVE-2026-47684 Sync-in Server: SSRF protection bypass via IPv4-mapped IPv6 addresses in regExpPrivateIP

Sync-in Server is a secure, open-source platform for file storage, sharing, collaboration, and syncing. Prior to version 2.3.0, the private IP blocklist regex used in the URL download feature does not match IPv4-mapped IPv6 addresses e.g. ::ffff:127.0.0.1, allowing SSRF protection to be bypassed ...

CVE-2026-41161

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's response time...

CVE-2026-41161

Summary: CVE-2026-41161 affects Sync-in Server before version 2.2.0. The /api/auth/login endpoint exposes a timing-based flaw that allows unauthenticated remote attackers to enumerate valid usernames by measuring response times. This is confirmed in the GitHub advisory and CVE descriptions, which...