MEDIUMCVSS v3.1 6.5Vulnerability

CVE-2026-77938

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.

Properties

Severity
MEDIUM
Nvd fetched at
2026-10-20T21:14:08.448323+00:00
Epss score
0.00341
Cvss severity
MEDIUM
Cvss score
6.5
Retrieved at
2026-10-21T01:24:50+00:00
Last source
FIRST EPSS
Score
6.5
Cvss version
3.1
Cve id
CVE-2026-77938
Cvss vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
First seen by Signal
2026-10-20T04:27:34+00:00
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Published at
2026-10-20T01:17:20.410
Last modified
2026-10-20T20:11:29.833
Epss percentile
0.26129

Related Entities (1)

HAS_WEAKNESS (1)

→[Weakness]Cleartext Storage of Sensitive Information in an Environment Variable

Explore deeper with Ninja Signal's threat intelligence graph

Search in SpektrOpen Signal Desktop
CVE-2026-77938 (CVSS v3.1 6.5) — Ninja Signal Threat Intelligence | Ninja Signal