CVE-2026-16796

high

Description

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.

References

https://pypi.org/project/bedrock-agentcore/1.18.1/

https://github.com/aws/bedrock-agentcore-sdk-python/security/advisories/GHSA-j6g5-3hh3-pgw8

https://aws.amazon.com/security/security-bulletins/2026-065-aws/

Details

Source: Mitre, NVD

Published: 2026-07-23

Updated: 2026-07-24

Risk Information

CVSS v2

Base Score: 8.5

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:N

Severity: High

CVSS v3

Base Score: 7.3

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N

Severity: High

CVSS v4

Base Score: 8.4

Vector: 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

Severity: High

EPSS

EPSS: 0.00327