Auth bypass in Mem0
CVE-2026-59706
mem0 contains unauthenticated config API endpoints that expose LLM API keys in plaintext and allow server-side request forgery via attacker-controlled ollama_base_url parameter. Unauthenticated attackers can retrieve stored secrets like OpenAI API keys via GET /api/v1/config/ or trigger SSRF attacks by setting ollama_base_url to internal addresses like cloud IMDS via PUT /api/v1/config/mem0/llm endpoint.
Vulnerability class: Broken Authentication
EPSS: 0.003 (17.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.3 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N.
Affected products
- Mem0 — versions 0
Weakness classification (CWE)
References
- GitHub Issue (issue-tracking)
- Product (product)
- Patch Commit (patch)
- disclosure@vulncheck.com (third-party-advisory)
Frequently asked questions
- What is CVE-2026-59706?
- CVE-2026-59706 is a critical-severity vulnerability in Mem0, classified under Missing Authentication for Critical Function. CVSS score: 9.3/10. Published 2026-07-07.
- How severe is CVE-2026-59706?
- Critical severity. CVSS v3 base score is 9.3 out of 10.