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Vulnerability record · CVE-2026-59705 · published 7 July 2026

CVE-2026-59705: Missing authentication for critical function vulnerability

mem0's openmemory/api component contains an unauthenticated access vulnerability that allows unauthenticated attackers to read, write, and delete arbitrary user memories by accessing API routers registered without authentication middleware. Attackers can supply arbitrary user_id parameters or directly access memory retrieval endpoints to expose private memory content, or invoke pause endpoints with global_pause=true to cause denial-of-service across all users.

9.3 CVSS 4.0 Critical EPSS 0.80% · top 45.0% CWE-306 · Missing authentication for critical function Deferred
9.3CVSS 4.0 base score
0.80%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
5References
8 Jul 2026Last modified by NVD

Description

mem0's openmemory/api component contains an unauthenticated access vulnerability that allows unauthenticated attackers to read, write, and delete arbitrary user memories by accessing API routers registered without authentication middleware. Attackers can supply arbitrary user_id parameters or directly access memory retrieval endpoints to expose private memory content, or invoke pause endpoints with global_pause=true to cause denial-of-service across all users.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://github.com/mem0ai/mem0
https://github.com/mem0ai/mem0/commit/a3154d59e52386d4e1189c1f5f44819868f76514
https://github.com/mem0ai/mem0/issues/6080
https://www.vulncheck.com/advisories/mem0-openmemory-api-unauthenticated-access-via-memory-endpoints
https://github.com/mem0ai/mem0/issues/6080

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Source: NIST National Vulnerability Database (record CVE-2026-59705), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.