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8 vulnerabilities by letta-ai
CVE-2026-18990 (GCVE-0-2026-18990)
Vulnerability from nvd – Published: 2026-08-06 02:15 – Updated: 2026-08-06 17:32
VLAI
EPSS
VEX
Title
letta-ai LettaBot API Status Route server.ts missing authentication
Summary
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.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-06 17:30 UTC
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/386359 | vdb-entry |
| https://vuldb.com/vuln/386359/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-18990 | third-party-advisory |
| https://vuldb.com/submit/862562 | third-party-advisory |
| https://vuldb.com/submit/862622 | third-party-advisory |
| https://gist.github.com/YLChen-007/2ba2e586f3d16c… | exploit |
Impacted products
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CVE-2026-4965 (GCVE-0-2026-4965)
Vulnerability from nvd – Published: 2026-03-27 17:41 – Updated: 2026-03-27 22:07
VLAI
EPSS
VEX
Title
letta-ai letta Incomplete Fix CVE-2025-6101 ast_parsers.py resolve_type eval injection
Summary
A vulnerability was detected in letta-ai letta 0.16.4. This issue affects the function resolve_type of the file letta/functions/ast_parsers.py of the component Incomplete Fix CVE-2025-6101. Performing a manipulation results in improper neutralization of directives in dynamically evaluated code. The attack can be initiated remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-27 18:43 UTC
CWE
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.353842 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.353842 | signaturepermissions-required |
| https://vuldb.com/?submit.777654 | third-party-advisory |
| https://gist.github.com/YLChen-007/fc09bc447a73bb… | exploit |
Impacted products
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CVE-2026-4964 (GCVE-0-2026-4964)
Vulnerability from nvd – Published: 2026-03-27 17:05 – Updated: 2026-03-31 15:11
VLAI
EPSS
VEX
Title
letta-ai letta File URL message_helper.py _convert_message_create_to_message server-side request forgery
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.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-31 15:10 UTC
CWE
- CWE-918 - Server-Side Request Forgery
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.353841 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.353841 | signaturepermissions-required |
| https://vuldb.com/?submit.777645 | third-party-advisory |
| https://gist.github.com/YLChen-007/fde4d5ed6ac4aa… | exploit |
Impacted products
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CVE-2025-6101 (GCVE-0-2025-6101)
Vulnerability from nvd – Published: 2025-06-16 02:00 – Updated: 2025-06-17 14:11
VLAI
EPSS
VEX
Title
letta-ai letta interface.py function_message eval injection
Summary
A vulnerability classified as critical has been found in letta-ai letta up to 0.4.1. Affected is the function function_message of the file letta/letta/interface.py. The manipulation of the argument function_name/function_args leads to improper neutralization of directives in dynamically evaluated code. The exploit has been disclosed to the public and may be used.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-06-16 16:15 UTC
CWE
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.312570 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.312570 | signaturepermissions-required |
| https://vuldb.com/?submit.590528 | third-party-advisory |
| https://github.com/letta-ai/letta/issues/2613 | exploitissue-tracking |
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CVE-2026-18990 (GCVE-0-2026-18990)
Vulnerability from cvelistv5 – Published: 2026-08-06 02:15 – Updated: 2026-08-06 17:32
VLAI
EPSS
VEX
Title
letta-ai LettaBot API Status Route server.ts missing authentication
Summary
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.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-06 17:30 UTC
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/386359 | vdb-entry |
| https://vuldb.com/vuln/386359/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-18990 | third-party-advisory |
| https://vuldb.com/submit/862562 | third-party-advisory |
| https://vuldb.com/submit/862622 | third-party-advisory |
| https://gist.github.com/YLChen-007/2ba2e586f3d16c… | exploit |
Impacted products
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CVE-2026-4965 (GCVE-0-2026-4965)
Vulnerability from cvelistv5 – Published: 2026-03-27 17:41 – Updated: 2026-03-27 22:07
VLAI
EPSS
VEX
Title
letta-ai letta Incomplete Fix CVE-2025-6101 ast_parsers.py resolve_type eval injection
Summary
A vulnerability was detected in letta-ai letta 0.16.4. This issue affects the function resolve_type of the file letta/functions/ast_parsers.py of the component Incomplete Fix CVE-2025-6101. Performing a manipulation results in improper neutralization of directives in dynamically evaluated code. The attack can be initiated remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-27 18:43 UTC
CWE
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.353842 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.353842 | signaturepermissions-required |
| https://vuldb.com/?submit.777654 | third-party-advisory |
| https://gist.github.com/YLChen-007/fc09bc447a73bb… | exploit |
Impacted products
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CVE-2026-4964 (GCVE-0-2026-4964)
Vulnerability from cvelistv5 – Published: 2026-03-27 17:05 – Updated: 2026-03-31 15:11
VLAI
EPSS
VEX
Title
letta-ai letta File URL message_helper.py _convert_message_create_to_message server-side request forgery
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.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-31 15:10 UTC
CWE
- CWE-918 - Server-Side Request Forgery
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.353841 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.353841 | signaturepermissions-required |
| https://vuldb.com/?submit.777645 | third-party-advisory |
| https://gist.github.com/YLChen-007/fde4d5ed6ac4aa… | exploit |
Impacted products
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CVE-2025-6101 (GCVE-0-2025-6101)
Vulnerability from cvelistv5 – Published: 2025-06-16 02:00 – Updated: 2025-06-17 14:11
VLAI
EPSS
VEX
Title
letta-ai letta interface.py function_message eval injection
Summary
A vulnerability classified as critical has been found in letta-ai letta up to 0.4.1. Affected is the function function_message of the file letta/letta/interface.py. The manipulation of the argument function_name/function_args leads to improper neutralization of directives in dynamically evaluated code. The exploit has been disclosed to the public and may be used.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-06-16 16:15 UTC
CWE
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.312570 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.312570 | signaturepermissions-required |
| https://vuldb.com/?submit.590528 | third-party-advisory |
| https://github.com/letta-ai/letta/issues/2613 | exploitissue-tracking |
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