CVE-2026-4964

Description

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.

Predictions

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No vendor mitigations ingested yet for this CVE. The mitigation-content worker queues fetches as references arrive — check back in a few minutes, or see the references list below.

References

• https://gist.github.com/YLChen-007/fde4d5ed6ac4aa876f73f8954c6214da
• https://vuldb.com/?ctiid.353841
• https://vuldb.com/?id.353841
• https://vuldb.com/?submit.777645

CWEs

CWE-918