PT-2026-117956 · Letta-Ai · Letta

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CVE-2026-77938

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Published

2026-10-20

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Updated

2026-10-20

CVSS v3.1

6.5

Medium

VectorAV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Letta through 0.16.8 contains an information disclosure vulnerability that allows users running tools to read server secrets because LocalSandbox subprocesses inherit the full server environment. Attackers can run code via POST /v1/tools/run or custom tools to read LETTA PG URI, POSTGRES PASSWORD, and provider API keys, then access cross-tenant database data.

Exploit

Fix

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Weakness Enumeration

Related Identifiers

CVE-2026-77938

Affected Products

Letta