CVE-2026-16796

Published Jul 23, 2026

Last updated 3 months ago

CVSS high 8.4
AWS

Overview

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.
Source
ff89ba41-3aa1-4d27-914a-91399e9639e5
NVD status
Awaiting Analysis

Risk scores

CVSS 4.0

Type
Secondary
Base score
8.4
Impact score
-
Exploitability score
-
Vector string
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Severity
HIGH

CVSS 3.1

Type
Secondary
Base score
7.3
Impact score
5.2
Exploitability score
2.1
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
Severity
HIGH

Weaknesses

ff89ba41-3aa1-4d27-914a-91399e9639e5
CWE-88

Social media

Hype score
Not currently trending

  1. Bedrock AgentCore SDK shipped two RCE flaws, CVE-2026-12530 and CVE-2026-16796, CVSS 8.4. A crafted package name passed to install_packages() ran shell commands inside the Code Interpreter sandbox, and with an execution role attached, the microVM metadata service handed over the

    @ai_neuralwire

    4 Oct 2026

    37 Impressions

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  2. 🚨*CVE* CVE-2026-16796 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 u… https://t.co/M8NI7abhtN ----- Traducción: CVE-2026-16796 Neu… https://t.co/utmtNg

    @infoflowcloud

    24 Jul 2026

    40 Impressions

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Related CVEs

  1. CVE-2024-31884
  2. Improper neutralization of argument delimiters in the volume handling component in AWS EFS CSI Driver (aws-efs-csi-driver) v3.1.0 through v3.4.2 might allow remote authenticated users with PersistentVolume creation permissions to inject arbitrary mount options via comma-separated values in the mounttargetipmap volumeAttribute. To remediate this issue, users should upgrade to version v3.5.0 or later.•CVE-2026-103505
  3. An unrecovered panic in the event stream header decoder in Amazon AWS SDK for Go v2 before release-2026-03-23 might allow an unauthenticated remote actor to terminate the consuming application process via a crafted event stream response frame containing a header value type outside the valid range. To remediate this issue, users should upgrade to release-2026-03-23 or later, and patch any forked or derivative code.•CVE-2026-89090
  4. A server-side request forgery issue due to improper validation of equivalent address representations in the port forwarding to remote hosts functionality in Amazon AWS Systems Manager Agent (SSM Agent) before 3.3.4851.0 on all platforms might allow an authenticated remote user to bypass the remote destination denylist and reach link-local endpoints, potentially obtaining the temporary IAM role credentials of a managed instance and acting with that role's permissions from outside the instance, via a crafted destination host value that uses an alternate representation of a denied link-local address. To remediate this issue, users should upgrade to version 3.3.4851.0 or later.•CVE-2026-89049
  5. Improper input validation in the Vega expression function implementation in OpenSearch Dashboards allows a remote authenticated actor with dashboard write permissions to execute arbitrary JavaScript in the context of other users' browser sessions by saving a crafted Vega visualization. The checkForFunctionProperty validation routine failed to recurse into arrays of objects, allowing a function property nested inside an array to bypass validation.•CVE-2026-84942

References

Sources include official advisories and independent security research.