CVE-2026-4965CWE-94CWE-95

letta-ai letta Incomplete Fix CVE-2025-6101 ast_parsers.py resolve_type eval injection

Medium · published March 27, 2026

CVSS v4.0
6.9
EPSS
1%
Percentile
55.2
In the wild
Unconfirmed
What it is

A vulnerability was detected in letta-ai letta 0.16.4. This issue affects the function resolve_type of the file letta/functions/ast_parsers.py of the component Incomplete Fix CVE-2025-6101. Performing a manipulation results in improper neutralization of directives in dynamically evaluated code. The attack can be initiated remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

The record
Technical detail
CVSS v4.0
6.9 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
EPSS
0.00771 · 55.2th percentile
Weaknesses
CWE-94 · Improper Control of Generation of Code ('Code Injection'); CWE-95 · Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')
Published
2026-03-27T17:41Z
EPSS history
Timeline
  • 27 MAR 17:41Z
    letta-ai letta Incomplete Fix CVE-2025-6101 ast_parsers.py resolve_type eval injection
    cvelistv5