---
id: CVE-2026-31245
aliases:
  - GHSA-cgx8-qgvr-f7vf
  - PYSEC-2026-2633
title: >-
  mem0 server lacks authentication and authorization controls for its memory
  creation API endpoint
summary: >-
  mem0 server lacks authentication and authorization controls for its memory
  creation API endpoint
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N'
vendor: mem0ai
product: mem0ai
ecosystem: pip
affected:
  - mem0ai <= 1.0.0
published: '2026-05-12'
updated: '2026-07-13'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/GHSA-cgx8-qgvr-f7vf'
references:
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-31245'
  - url: 'https://github.com/mem0ai/mem0'
  - url: 'https://www.notion.so/CVE-2026-31245-35d1e1393188810aab57ff9b49146b05'
tags:
  - osv
  - pip
epss: 0.00335
epssPercentile: 0.26991
ingestedAt: '2026-07-13T18:57:56.455Z'
---

## Overview

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

- `mem0ai <= 1.0.0`

## Remediation

Refer to the advisory for the patched release.