CVE-2026-4965

HIGH 7.3

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

CVSS Score

7.3

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-95 CWE-94
Vendor	letta-ai
Product	letta
Published	Mar 27, 2026
Last Updated	Mar 27, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

letta-ai / letta

0.16.4

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/?id.353842 vuldb.com: https://vuldb.com/?ctiid.353842 vuldb.com: https://vuldb.com/?submit.777654 gist.github.com: https://gist.github.com/YLChen-007/fc09bc447a73bba526c1642d9ce73ca5

Credits

🔍 Eric-z (VulDB User) VulDB