Vulnerability · Published May 12, 2026 · Assigned by mitre
CVE-2026-31245
Medium 5.3
In plain English
A medium-severity missing authentication in the mem0ai package (PyPI). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 27% of all known vulnerabilities).
Official description
The mem0 1.0.0 server lacks authentication and authorization controls for its memory creation API endpoint (POST /memories). The endpoint allows unauthenticated users to submit arbitrary memory records without verifying their identity or permissions. A remote attacker can exploit this by sending unauthenticated POST requests to create malicious or spoofed memory entries in the database, leading to unauthorized data injection and potential data pollution.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| PyPI | mem0ai | no fix listed | GHSA-cgx8-qgvr-f7vf |
| PyPI | mem0ai | no fix listed | PYSEC-2026-2633 |
Affected products (as reported)
Weakness: CWE-306, CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N