Security Advisory - Published 2026-06-12 - Mem0 self-hosted server

Mem0 CVE-2026-49948: self-hosted configuration authorization check

CVE-2026-49948 matters when a Mem0 self-hosted server is reachable by people who should not be able to change global memory, LLM provider, embedder, or database-backed configuration. The fix is tied to Mem0 commit ae7f406, which hardens the self-hosted server and its admin authorization checks.

Defensive scope: this checklist is for owned Mem0 deployments and client-approved reviews only. It does not include exploit traffic, request payloads, or instructions for testing third-party AI memory servers.

Who is affected

  • Product: Mem0 self-hosted server.
  • Affected range: versions through 0.2.8 according to the CVE record.
  • Fix reference: Mem0 commit ae7f406.
  • Highest-risk setup: public or shared self-hosted API where ordinary API-key or JWT users can reach server administration paths.

Version and deployment check

docker ps --format 'table {{.Names}}\t{{.Image}}\t{{.Ports}}' | grep -i mem0
docker compose config 2>/dev/null | grep -i mem0
pip show mem0ai 2>/dev/null
python -c "import mem0, inspect; print(getattr(mem0, '__version__', 'unknown'))" 2>/dev/null

The important question is not only the Python package version. Confirm the self-hosted server image or git revision that is actually running in production, then compare it with the fixed commit or a release that includes it.

Exposure check

  • Is the Mem0 server reachable from the public internet, a partner network, or a shared internal VPN?
  • Are normal users issued API keys or JWTs that can reach server configuration routes?
  • Are LLM provider keys, embedder settings, PostgreSQL/pgvector settings, or collection names stored in the server config?
  • Does your reverse proxy enforce authentication before requests reach the Mem0 server?

Configuration changes to review

  • LLM provider, model name, base URL, or API key changes after June 10, 2026.
  • Embedder provider, vector dimension, database collection, or pgvector connection changes.
  • New admin users, new API keys, or API keys used from unexpected IP addresses.
  • Container restarts followed by changed environment variables or changed compose files.

Safe fix path

  1. Upgrade to a Mem0 build that includes commit ae7f406, or apply the vendor fix in your pinned fork.
  2. Move the server behind a private network, VPN, or identity-aware proxy if it does not need public access.
  3. Rotate LLM provider keys and database credentials if you find unexpected configuration changes.
  4. Separate ordinary API clients from administrative server permissions.
  5. Record the final server image digest, git SHA, and post-fix configuration for the incident notes.

When to request repair help

Use Ping7 CVE Repair if the Mem0 server was internet-facing, you cannot identify the running version, or you found unexpected provider or database configuration changes. Send the deployment method, image tag or git SHA, and whether API keys are shared with end users.

References

Author: Ping7 security team - Published: 2026-06-12 - CVE-2026-49948 - Defensive self-check only.