High 7.3Published Mar 27, 2026

CVE-2026-4965letta-ai letta Incomplete Fix CVE-2025-6101 ast_parsers.py resolve_type eval injection

Updated under an hour ago (Oct 26, 2026, 6:23 AM ET)

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No exploitation reported and no EPSS estimate yet.

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Every CVE for letta-ai letta

Exploited in the last 30 days

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.

CVSS: 7.3 HIGH (v3.1, CNA)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
Weakness (CWE): CWE-95, CWE-94
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulDB
NVD analysis: Analyzed
Record last updated: Mar 27, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

letta-ai letta letta:letta	0.16.4	CNA record
letta letta letta:letta	0.16.4	NVD

References

https://vuldb.com/?id.353842vdb-entry, technical-description, third-party-advisory
https://vuldb.com/?ctiid.353842signature, permissions-required, vdb-entry
https://vuldb.com/?submit.777654third-party-advisory, exploit, vdb-entry
https://gist.github.com/YLChen-007/fc09bc447a73bba526c1642d9ce73ca5exploit, third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.