Auth bypass in Mem0
CVE-2026-59705
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.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.008 (55.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 55.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
- Mem0 — versions 0
Weakness classification (CWE)
References
- GitHub Issue (issue-tracking)
- Product (product)
- Patch Commit (patch)
- www.vulncheck.com/advisories/mem0-openmemory-api-unauthenticated-access-via-mem… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-59705?
- CVE-2026-59705 is a critical-severity vulnerability in Mem0, classified under Missing Authentication for Critical Function. CVSS score: 9.8/10. Published 2026-07-07.
- How severe is CVE-2026-59705?
- Critical severity. CVSS v3 base score is 9.8 out of 10.