Critical 9.0Published Oct 6, 2026

CVE-2026-105812Code injection via unencoded configuration values during Python code generation in Bedrock AgentCore Starter Toolkit agent import

Updated under an hour ago (2026-10-19 08:30 UTC)

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It affects aws bedrock-agentcore-starter-toolkit. Add what you run to find out whether that includes you.

EPSS puts the chance of exploitation in the next 30 days at 0.28%, higher than 20% of scored CVEs.

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Every CVE for aws bedrock-agentcore-starter-toolkit

Exploited in the last 30 days

Improper control of code generation in the agent import functionality of Amazon Bedrock AgentCore Starter Toolkit before 0.3.14 might allow an authenticated same-account actor to execute arbitrary code when a user imports and runs or deploys a Bedrock Agent, via crafted configuration values incorporated into generated Python source without safe literal encoding. To remediate this issue, users should upgrade to version 0.3.14. Because this issue persists into generated source, upgrading alone is not sufficient: agents imported with an affected version must be re-imported with version 0.3.14 or later and their local and deployed output artifacts replaced.

CVSS: 9.0 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Weakness (CWE): CWE-94
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): 0.28% (percentile 20)
Assigned by: AMZN
NVD analysis: Awaiting Analysis
Record last updated: Oct 7, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

aws bedrock-agentcore-starter-toolkit aws:bedrock_agentcore_starter_toolkit (from the name)	from 0.1.4 through 0.3.13	CNA record

References

https://pypi.org/project/bedrock-agentcore-starter-toolkit/0.3.14/patch, release-notes
https://aws.amazon.com/security/security-bulletins/2026-127-aws/vendor-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.