Mnemosyne

Mnemosyne My personal infosec memo Fun fact The name of this project comes from the Greek goddess of memory: Mnemosyne. Moreover and regarding our story, it is interesting to note that, it's the origin of the word memory. Usage Mnemosyne is publicly available on the sub-domain of the same name of...

mnemosyne

Mnemosyne is a generic Windows-based memory scraping tool. It scans a process memory space for a search string or regex unicode and ascii then if found, spits these out either to stdout, a file or a socket to a remote listener. The utility is useful for memory scraping a process, as a...

Mnemosyne has JWT signature verification bypass sync server that allows authentication bypass

SummaryThe Mnemosyne sync server's authentication check decoded JWT bearer tokens but never verified their HMAC-SHA256 signatures. Any well-formed token was accepted, allowing an unauthenticated attacker to impersonate any user and read or modify their sync data.Severity: CriticalCVSS 3.1:...

CVE-2026-59163

Mnemosyne is a memory layer for artificial intelligence agents. Prior to v3.10.1, the auth check in mnemosyne/core/syncserver.py parsed the JWT's header and payload using base64 decoding, then passed the token to a jwt library call with options that effectively disabled signature verification. Th...

CVE-2026-59163 Mnemosyne has JWT signature verification bypass sync server that allows authentication bypass

Mnemosyne is a memory layer for artificial intelligence agents. Prior to v3.10.1, the auth check in mnemosyne/core/syncserver.py parsed the JWT's header and payload using base64 decoding, then passed the token to a jwt library call with options that effectively disabled signature verification. Th...

EUVD-2026-83263

Mnemosyne is a memory layer for artificial intelligence agents. Prior to v3.10.1, the auth check in mnemosyne/core/syncserver.py parsed the JWT's header and payload using base64 decoding, then passed the token to a jwt library call with options that effectively disabled signature verification. Th...

CVE-2026-59163 Mnemosyne has JWT signature verification bypass sync server that allows authentication bypass

Mnemosyne is a memory layer for artificial intelligence agents. Prior to v3.10.1, the auth check in mnemosyne/core/syncserver.py parsed the JWT's header and payload using base64 decoding, then passed the token to a jwt library call with options that effectively disabled signature verification. Th...

CVE-2026-59163

Mnemosyne is a memory layer for AI agents. Prior to v3.10.1 , the authentication check in mnemosyne/core/sync_server.py parsed the JWT header and payload via base64 decoding and then passed the token to a jwt library call with options that effectively disabled signature verification , allowing th...

CVE-2026-59163 Mnemosyne has JWT signature verification bypass sync server that allows authentication bypass

Mnemosyne is a memory layer for artificial intelligence agents. Prior to v3.10.1, the auth check in mnemosyne/core/syncserver.py parsed the JWT's header and payload using base64 decoding, then passed the token to a jwt library call with options that effectively disabled signature verification. Th...

Mnemosyne has JWT signature verification bypass sync server that allows authentication bypass

Summary The Mnemosyne sync server's authentication check decoded JWT bearer tokens but never verified their HMAC-SHA256 signatures. Any well-formed token was accepted, allowing an unauthenticated attacker to impersonate any user and read or modify their sync data. Severity: Critical CVSS 3.1:...

GHSA-XCW4-53CC-HV32 Mnemosyne has JWT signature verification bypass sync server that allows authentication bypass

Summary The Mnemosyne sync server's authentication check decoded JWT bearer tokens but never verified their HMAC-SHA256 signatures. Any well-formed token was accepted, allowing an unauthenticated attacker to impersonate any user and read or modify their sync data. Severity: Critical CVSS 3.1:...

PT-2026-95576

Name of the Vulnerable Software and Affected Versions Mnemosyne versions prior to 3.10.1 Description The sync server uses JSON Web Tokens JWT to authenticate clients. An authentication check in mnemosyne/core/sync server.py parsed the JWT header and payload using base64 decoding but used library...

CVE-2026-59163: Improper Verification of Cryptographic Signature

Mnemosyne is a memory layer for artificial intelligence agents. Prior to v3.10.1, the auth check in mnemosyne/core/syncserver.py parsed the JWT's header and payload using base64 decoding, then passed the token to a jwt library call with options that effectively disabled signature verification. Th...