Mem0 0.2.8 Missing Authorization via POST /configure Endpoint
CVE-2026-49948

8.6HIGH

Key Information:

Vendor

Mem0ai

Status
Mem0
Vendor
CVE Published:
9 June 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-49948?

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.

Affected Version(s)

mem0 0 <= 0.2.8

mem0 0 <= 0.2.8

mem0 ae7f4062652df1376990221101d1adbb0819c973

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-49948 - Proof of Concept

References

https://github.com/mem0ai/mem0/issues/5127
technical-descriptionexploit
https://github.com/mem0ai/mem0/issues/5384
technical-description
https://github.com/mem0ai/mem0/pull/5360
issue-tracking

CVSS V4

Score:
8.6
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

YU SUN
.