Missing Authentication Vulnerability in Letta-ai LettaBot 0.2.0
CVE-2026-18990
6.9MEDIUM
Key Information:
Badges
👾 Exploit Exists🟡 Public PoC
What is CVE-2026-18990?
A critical flaw has been identified in the LettaBot 0.2.0 by letta-ai, specifically within the API Status Route component located in 'src/api/server.ts'. This vulnerability allows unauthorized access due to a missing authentication mechanism, which could be exploited from a remote location. The public nature of the exploit poses significant risks to users, especially considering the vendor's lack of response to the disclosure attempt.
Affected Version(s)
LettaBot 0.2.0
Exploit Proof of Concept (PoC)
PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.
References
CVSS V4
Score:
6.9
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None
Timeline
- 🟡
Public PoC available
- 👾
Exploit known to exist
Vulnerability published
Vulnerability Reserved
Credit
JohnChen (VulDB User)
VulDB CNA Team