A missing S3 ownership verification in the Bedrock AgentCore Starter Toolkit before version v0.1.13 may allow a remote actor to inject code during the build process, leading to code execution in the AgentCore Runtime. This issue only affects users of the Bedrock AgentCore Starter Toolkit before version v0.1.13 who build or have built the Toolkit after September 24, 2025. Any users on a version >=v0.1.13, and any users on previous versions who built the toolkit before September 24, 2025 are not affected.
To remediate this issue, customers should upgrade to version v0.1.13.
Metrics
Affected Vendors & Products
References
History
Mon, 16 Mar 2026 19:15:00 +0000
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Mon, 16 Mar 2026 18:15:00 +0000
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| Description | A missing S3 ownership verification in the Bedrock AgentCore Starter Toolkit before version v0.1.13 may allow a remote actor to inject code during the build process, leading to code execution in the AgentCore Runtime. This issue only affects users of the Bedrock AgentCore Starter Toolkit before version v0.1.13 who build or have built the Toolkit after September 24, 2025. Any users on a version >=v0.1.13, and any users on previous versions who built the toolkit before September 24, 2025 are not affected. To remediate this issue, customers should upgrade to version v0.1.13. | |
| Title | Improper S3 ownership verification in Bedrock AgentCore Starter Toolkit | |
| Weaknesses | CWE-283 CWE-340 |
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cvssV3_1
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Status: PUBLISHED
Assigner: AMZN
Published:
Updated: 2026-03-16T18:12:08.533Z
Reserved: 2026-03-16T14:28:57.619Z
Link: CVE-2026-4269
Updated: 2026-03-16T18:11:58.092Z
Status : Received
Published: 2026-03-16T18:16:11.007
Modified: 2026-03-16T18:16:11.007
Link: CVE-2026-4269
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OpenCVE Enrichment
No data.