CVE-2026-16796highCWE-88

CVE-2026-16796: high-severity vulnerability in AWS bedrock-agentcore 1.18.1

Improper neutralization of argument delimiters in AWS Bedrock AgentCore Python SDK install_packages()

Published 23 Jul 2026 · Updated 24 Jul 2026

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21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 8.4epss 0.7%

Improper neutralization of argument delimiters in the install_packages() method in AWS Bedrock AgentCore Python SDK before 1.18.1 might allow a remote authenticated user to execute arbitrary commands within the Code Interpreter sandbox via crafted package name arguments. To mitigate this issue, users should upgrade to the patched version 1.18.1.

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Affected products

AWS · bedrock-agentcore 1.18.1

References

https://aws.amazon.com/security/security-bulletins/2026-065-aws/https://github.com/aws/bedrock-agentcore-sdk-python/security/advisories/GHSA-j6g5-3hh3-pgw8 https://pypi.org/project/bedrock-agentcore/1.18.1/