CVE-2026-49948 Mem0 0.2.8 Missing Authorization via POST /configure Endpoint
Authenticated users can modify global LLM configurations to redirect traffic to attacker servers, affecting all instance users.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-49948?
CVE-2026-49948 is a high-severity missing authorization vulnerability in mem0ai mem0, published on 9 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Mem0 versions through 0.2.8, fixed in commit ae7f406, contain a missing authorization vulnerability in the self-hosted server component where the POST /configure endpoint modifies global LLM provider and embedder configuration but only verifies authentication via JWT or X-API-Key without validating the caller's role. Any authenticated user holding a distributed API key can redirect all LLM and embedder traffic to an attacker-controlled server, with the malicious configuration persisted to PostgreSQL and surviving server restarts to affect all users and API keys on the instance.
Weakness: CWE-862
Which versions are affected by CVE-2026-49948?
How do I fix CVE-2026-49948?
No fix has been published for CVE-2026-49948 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-49948 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-49948 exists.
Sources
Also known as GHSA-hp66-92p5-jh23.