letta-ai LettaBot 0.2.0 API Status Route src/api/server.ts missing authentication

Summaryinfo

A vulnerability, which was classified as critical, has been found in letta-ai LettaBot 0.2.0. The affected element is an unknown function of the file src/api/server.ts of the component API Status Route. This manipulation causes missing authentication. The identification of this vulnerability is CVE-2026-18990. It is possible to initiate the attack remotely. Furthermore, there is an exploit available. The vendor was contacted early about this disclosure but did not respond in any way.

Detailsinfo

A vulnerability was found in letta-ai LettaBot 0.2.0. It has been declared as critical. Affected by this vulnerability is an unknown functionality of the file src/api/server.ts of the component API Status Route. The manipulation with an unknown input leads to a missing authentication vulnerability. The CWE definition for the vulnerability is CWE-306. The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources. As an impact it is known to affect confidentiality, integrity, and availability.

It is possible to read the advisory at gist.github.com. This vulnerability is known as CVE-2026-18990. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details and also a public exploit are known.

It is possible to download the exploit at gist.github.com. It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• Artificial Intelligence Software

Vendor

• letta-ai

Name

• LettaBot

Version

• 0.2.0

CPE 2.3info

• 🔒

CPE 2.2info

• 🔒

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Threat Intelligenceinfo

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Submitinfo

Accepted

• Submit #862562: letta-ai LettaBot 0.2.0 Missing Authentication for Critical Function (CWE-306) (by JohnChen)

Duplicate

• Submit #XXXXXX: Xxxxx-xx Xxxxxxxx Xx.x.x-xxxxx.xx Xxxxxxx Xxxxxxxxxxxxxx Xxx Xxxxxxxx Xxxxxxxx (xxx-xxx) (by ChenMarry)

Be aware that VulDB is the high quality source for vulnerability data.

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