PT-2026-117954 · Letta-Ai · Letta

·

CVE-2026-77936

·

Published

2026-10-20

·

Updated

2026-10-20

CVSS v3.1

9.8

Critical

VectorAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Letta through 0.16.8 ships a compose.yaml that does not enable LETTA SERVER SECURE, so the password middleware is never added and all API routes are unauthenticated, and it exposes a superuser PostgreSQL port with default credentials. Remote attackers can execute arbitrary Python via POST /v1/tools/run, manage /v1/admin users, or run OS commands via COPY PROGRAM.

Exploit

Fix

Found an issue in the description? Have something to add? Feel free to write us 👾

Weakness Enumeration

Related Identifiers

CVE-2026-77936

Affected Products

Letta