CVE-2026-4964: medium-severity vulnerability in letta-ai letta
letta-ai letta File URL message_helper.py _convert_message_create_to_message server-side request forgery
Published · Updated
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33Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 5.3epss 0.3%
A security vulnerability has been detected in letta-ai letta 0.16.4. This vulnerability affects the function _convert_message_create_to_message of the file letta/helpers/message_helper.py of the component File URL Handler. Such manipulation of the argument ImageContent leads to server-side request forgery. It is possible to launch the attack remotely. The exploit has been disclosed publicly 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:L/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/fde4d5ed6ac4aa876f73f8954c6214daunverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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