CVE-2026-4964

Summary

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.

Affected Software

Weaknesses

• CWE-918: Server-Side Request Forgery

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: no
  • Technical Impact: partial

References

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

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