CVE-2026-4965

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-4965
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.

7.3 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

7.5 /10

CVSS v2.0 : HIGH

V2 Legend

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References
Link Resource
https://gist.github.com/YLChen-007/fc09bc447a73bba526c1642d9ce73ca5 Exploit Third Party Advisory
https://vuldb.com/?ctiid.353842 Permissions Required VDB Entry
https://vuldb.com/?id.353842 Third Party Advisory VDB Entry
https://vuldb.com/?submit.777654 Exploit Third Party Advisory VDB Entry
Configurations

Configuration 1 (hide)

cpe:2.3:a:letta:letta:0.16.4:*:*:*:*:*:*:*
History

29 Apr 2026, 22:07

Type Values Removed Values Added
References () https://gist.github.com/YLChen-007/fc09bc447a73bba526c1642d9ce73ca5 - () https://gist.github.com/YLChen-007/fc09bc447a73bba526c1642d9ce73ca5 - Exploit, Third Party Advisory
References () https://vuldb.com/?ctiid.353842 - () https://vuldb.com/?ctiid.353842 - Permissions Required, VDB Entry
References () https://vuldb.com/?id.353842 - () https://vuldb.com/?id.353842 - Third Party Advisory, VDB Entry
References () https://vuldb.com/?submit.777654 - () https://vuldb.com/?submit.777654 - Exploit, Third Party Advisory, VDB Entry
First Time Letta letta
Letta
CPE cpe:2.3:a:letta:letta:0.16.4:*:*:*:*:*:*:*

27 Mar 2026, 23:17

Type Values Removed Values Added
Summary (en) 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. Once again VulDB remains the best source for vulnerability data. (en) 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.

27 Mar 2026, 18:16

Type Values Removed Values Added
New CVE
Information

Published : 2026-03-27 18:16

Updated : 2026-04-29 22:07

NVD link : CVE-2026-4965

Mitre link : CVE-2026-4965

CVE.ORG link : CVE-2026-4965

JSON object : View

Products Affected

letta

  • letta
CWE
CWE-94

Improper Control of Generation of Code ('Code Injection')

CWE-95

Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')