Title: Mem0 de mem0ai, Description: Las versiones de Mem0 hasta la 0.2.8, corregidas en el commit ae7f406, contienen una vulnerabilidad de autorización faltante en el componente de servidor autoalojado donde el endpoint POST /configure modifica la configuración global del proveedor de LLM y del incrustador, pero solo verifica la autenticación a través de JWT o X-API-Key sin validar el rol del llamador. Cualquier usuario autenticado que posea una clave API distribuida puede redirigir todo el tráfico de LLM y del incrustador a un servidor controlado por un atacante, con la configuración maliciosa persistida en PostgreSQL y sobreviviendo a los reinicios del servidor para afectar a todos los usuarios y claves API en la instancia.

[{"vendor":"mem0ai","product":"mem0","defaultStatus":"affected","repo":"https://github.com/mem0ai/mem0","versions":[{"version":"0","lessThanOrEqual":"0.2.8","versionType":"semver","status":"affected"},{"version":"ae7f4062652df1376990221101d1adbb0819c973","versionType":"git","status":"unaffected"}]}]

[{"vendor":"mem0ai","product":"mem0","defaultStatus":"affected","repo":"https://github.com/mem0ai/mem0","packageURL":"pkg:github/mem0ai/mem0","versions":[{"version":"0","lessThanOrEqual":"0.2.8","versionType":"semver","status":"affected"},{"version":"ae7f4062652df1376990221101d1adbb0819c973","versionType":"git","status":"unaffected"}]}]

{"timestamp":"2026-06-09T15:34:51.606590Z","id":"CVE-2026-49948","options":[{"exploitation":"poc"},{"automatable":"no"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}

[{"vendor":"mem0ai","product":"mem0","defaultStatus":"affected","repo":"https://github.com/mem0ai/mem0","versions":[{"version":"0","lessThanOrEqual":"0.2.8","versionType":"semver","status":"affected"},{"version":"ae7f4062652df1376990221101d1adbb0819c973","versionType":"git","status":"unaffected"}]}]

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.

AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

CWE-862

https://github.com/mem0ai/mem0/commit/ae7f4062652df1376990221101d1adbb0819c973

https://github.com/mem0ai/mem0/issues/5127

https://github.com/mem0ai/mem0/issues/5384

https://github.com/mem0ai/mem0/pull/5360

https://www.vulncheck.com/advisories/mem0-missing-authorization-via-post-configure-endpoint