CVE-2026-18990
letta-ai LettaBot API Status Route server.ts missing authentication
- State
- Published
- Severity
- 6.9 Medium
- Published
- Aug 6, 2026
- Updated
- Aug 6, 2026
- Reserved
- Aug 5, 2026
Description
A vulnerability was detected in letta-ai LettaBot 0.2.0. Impacted is an unknown function of the file src/api/server.ts of the component API Status Route. The manipulation results in missing authentication. The attack may be performed from remote. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.9 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 7.3 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R | VulDB |
| 3.0 | 7.3 High | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R | VulDB |
| 2.0 | 7.5 High | AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
LettaBotletta-ai |
|
References
- VDB-386359 | letta-ai LettaBot API Status Route server.ts missing authenticationvdb-entry
- VDB-386359 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- CVE-2026-18990 | CVE Analysis and Reportthird-party-advisory
- Submit #862562 | letta-ai LettaBot 0.2.0 Missing Authentication for Critical Function (CWE-306)third-party-advisory
- Submit #862622 | letta-ai lettabot v0.2.0-alpha.13 Missing Authentication for Critical Function (CWE-306) (Duplicate)third-party-advisory
- https://gist.github.com/YLChen-007/2ba2e586f3d16cb368c8dcd6ef680178exploit
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