High

mem0 server lacks authentication and authorization controls for its memory management API endpoints

  • Disclosed: 12.05.2026
  • Updated: 11.10.2026 14:18

The mem0 1.0.0 server lacks authentication and authorization controls for its memory management API endpoints. Critical functions such as updating memory records (PUT /memories/{memory_id}) are exposed without any verification of the requester's identity or permissions. A remote attacker can exploit this by sending unauthenticated requests to modify, overwrite, or delete arbitrary memory records, leading to unauthorized data manipulation and potential data loss.

Affected software

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PlatformPackageVulnerable versionsFixed in
Python (PyPI) mem0ai <= 1.0.0 no fix

References

CVSS score 7.5/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Weakness (CWE)
CWE-306
Platform
Python (PyPI)
Package
mem0ai
Disclosed
12.05.2026
Updated
11.10.2026 14:18

Sources and licenses

OSV / GitHub Advisory Database - PYSEC-2026-2635 - PyPA Advisory Database; CC BY 4.0

OSV / GitHub Advisory Database - GHSA-jfv9-68m5-gjjr - CC BY 4.0

Vulnerability history: mem0ai

All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.

Total entries
4
First → latest
05.2026 05.2026
Without a fix
3
Exploited in attacks
0

Severity breakdown

  • High 1
  • Medium 2
  • Low 1

Disclosures per year

  1. 2026: 4
  1. mem0 server lacks authentication and authorization controls for its memory management API endpoints this entry
    High · 7.5 CVE-2026-31240 <= 1.0.0 no fix
  2. Low · 6.3 CVE-2026-7597 < 2.0.0b2 2.0.0b2

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