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2 vulnerabilities found for AWS Security Agent MCP server by AWS
CVE-2026-87913 (GCVE-0-2026-87913)
Vulnerability from nvd – Published: 2026-09-10 15:43 – Updated: 2026-09-10 16:29
VLAI
EPSS
VEX
Title
Missing S3 bucket ownership verification in the AWS Security Agent MCP server
Summary
A missing S3 bucket ownership verification in the AWS Security Agent MCP server before 0.2.0 version might allow remote attackers to obtain the private source archive of a scanned workspace, including credentials and infrastructure state contained in that archive, via a pre-registered storage bucket whose name is derived from a publicly known account identifier.
To remediate this issue, users should upgrade to version 0.2.0. Users should also verify that the scan output bucket in their account is owned by their own account, because upgrading does not release a bucket name that a third party has already registered.
Severity
5.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-10 16:27 UTC
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://pypi.org/project/awslabs.security-agent-m… | patch |
| https://aws.amazon.com/security/security-bulletin… | vendor-advisory |
| https://github.com/awslabs/mcp/security/advisorie… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| AWS | AWS Security Agent MCP server |
Affected:
0.1.0 , ≤ 0.1.5
(custom)
cpe:2.3:a:aws:aws_security_agent_mcp_server:*:*:*:*:*:*:*:* |
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CVE-2026-87913 (GCVE-0-2026-87913)
Vulnerability from cvelistv5 – Published: 2026-09-10 15:43 – Updated: 2026-09-10 16:29
VLAI
EPSS
VEX
Title
Missing S3 bucket ownership verification in the AWS Security Agent MCP server
Summary
A missing S3 bucket ownership verification in the AWS Security Agent MCP server before 0.2.0 version might allow remote attackers to obtain the private source archive of a scanned workspace, including credentials and infrastructure state contained in that archive, via a pre-registered storage bucket whose name is derived from a publicly known account identifier.
To remediate this issue, users should upgrade to version 0.2.0. Users should also verify that the scan output bucket in their account is owned by their own account, because upgrading does not release a bucket name that a third party has already registered.
Severity
5.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-10 16:27 UTC
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://pypi.org/project/awslabs.security-agent-m… | patch |
| https://aws.amazon.com/security/security-bulletin… | vendor-advisory |
| https://github.com/awslabs/mcp/security/advisorie… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| AWS | AWS Security Agent MCP server |
Affected:
0.1.0 , ≤ 0.1.5
(custom)
cpe:2.3:a:aws:aws_security_agent_mcp_server:*:*:*:*:*:*:*:* |
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