CVE-2026-4965
letta-ai letta Incomplete Fix CVE-2025-6101 ast_parsers.py resolve_type eval injection
Vexday Risk Score
33Attention
SSVC decision (CISA)
Attend
PoC available → attend closely
CVSS 6.9EPSS 0.6%KEV nãoPoC públicaNuclei —Metasploit —Patch —
Lifecycle
27 Mar 2026Published on NVD
Recommendation: Plan a near-term fix — a public PoC already exists.
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: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
Affected products
letta-ai · lettapublic PoCs found — 1
cve_referencegist.github.com/YLChen-007/fc09bc447a73bba526c1642d9ce73ca5unverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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