Amazon Web Services Latest Security Bulletins

Bulletin ID: 2026-053-AWS Scope: AWS Content Type: Important (requires attention) Publication Date: 07/07/2026 09:45 AM PDT Description: AWS Research and Engineering Studio (RES) is an open-source solution that enables researchers and engineers to create and manage secure virtual desktops and computing resources on AWS. We identified an improper link resolution before file access issue (CWE-59) in the Auth.GetUserPrivateKey API. An authenticated remote user could read arbitrary files on the cluster-manager EC2 instance by replacing their SSH private key file (~/.ssh/id_rsa) with a symbolic link targeting any file on the host. Because the cluster-manager process runs as root, any file readable by root is exposed, including other users’ SSH private keys and application configuration secrets. Impacted versions: <=2026.03 Please refer to the article below for the most up-to-date and complete information related to this AWS Security Bulletin.

Bulletin ID: 2026-052-AWS Scope: AWS Content Type: Important (requires attention) Publication Date: 07/06/2026 13:45 PM PDT Description: Amazon mcp-gateway-registry is an open-source gateway and registry for Model Context Protocol (MCP) servers, providing centralized discovery, authentication/authorization, and proxying of MCP tools for AI agents. We identified CVE-2026-14471, an issue in the metrics-service retention policy management component where a caller-supplied table_name value is interpolated into SQL statements in identifier position without proper neutralization. An authenticated remote user is able to supply a crafted table_name value to execute arbitrary SQL queries against the metrics database. This allows the user to read stored data (including API key material) and to delete or alter stored data. Impacted versions: >=1.0.3 AND <=1.0.12 Please refer to the article below for the most up-to-date and complete information related to this AWS Security Bulletin.

Bulletin ID: 2026-051-AWS Scope: AWS Content Type: Important (requires attention) Publication Date: 07/01/2026 12:45 PM PDT Description: The AWS Advanced JDBC Wrapper is an open-source JDBC driver wrapper that extends a JDBC driver to enable Amazon Aurora and AWS Cloud features such as failover handling and caching. We identified CVE-2026-14265, an issue in the RemoteQueryCachePlugin of the AWS Advanced JDBC Wrapper. When this plugin is enabled, query results read from the shared Redis/Valkey cache are deserialized without class filtering. An actor with write access to the shared cache infrastructure could insert a crafted serialized Java object that, when read by an application, results in execution of arbitrary code on the application server. Impacted versions: >=3.3.0 AND <=4.0.0 Please refer to the article below for the most up-to-date and complete information related to this AWS Security Bulletin.

Bulletin ID: 2026-050-AWS Scope: AWS Content Type: Important (requires attention) Publication Date: 07/01/2026 12:15 PM PDT Description: AWS CDK (aws-cdk-lib) is an open-source framework for defining cloud infrastructure in code and provisioning it through AWS CloudFormation. We identified CVE-2026-13760, an OS command injection issue in the NodejsFunction Docker bundling pipeline in aws-cdk-lib before 2.260.0 that could allow an actor who controls dependency version strings in a project’s package.json file to execute arbitrary commands on the host running the CDK toolchain via injected shell metacharacters in the OsCommand helper. This issue requires the actor to control the content of a package.json dependency version string that is processed during Docker-based bundling with nodeModules specified. Impacted versions: < 2.260.0 Please refer to the article below for the most up-to-date and complete information related to this AWS Security Bulletin.

Bulletin ID: 2026-049-AWS Scope: AWS Content Type: Important (requires attention) Publication Date: 07/01/2026 11:45 AM PDT Description: The AWS Command Line Interface (AWS CLI) is a unified tool for managing AWS services from the command line. We identified CVE-2026-13769 in AWS CLI on Unix-like systems where the umask has not been configured to restrict file permissions (the default on most systems) wrote credential and configuration files with world-readable permissions, which allows other local users on the same host to read credentials. Impacted versions: <=1.44.77 (v1) AND <=2.34.28 (v2) Please refer to the article below for the most up-to-date and complete information related to this AWS Security Bulletin.

Bulletin ID: 2026-048-AWS Scope: AWS Content Type: Important (requires attention) Publication Date: 06/29/2026 11:15 PM PDT Description: AWS WAF is a web application firewall that monitors the HTTP(S) requests that are forwarded to your protected web application resources. We identified CVE-2026-13762 and CVE-2026-13763, which are issues affecting HTTP/2 multi-frame request body inspection by AWS WAF. CVE-2026-13762 affects AWS WAF deployment with CloudFront. This issue was remediated server-side; no customer action is required. CVE-2026-13763 affects AWS WAF deployment with AWS Application Load Balancer (ALB). Under certain conditions, a crafted multi-frame HTTP/2 request could cause only a partial request body to be inspected. This issue has been addressed on ALB, and customers can ensure full protection by configuring how AWS WAF inspects HTTP/2 request bodies on their ALB. Please refer to the article below for the most up-to-date and complete information related to this AWS Security Bulletin.

Bulletin ID: 2026-047-AWS Scope: AWS Content Type: Important (requires attention) Publication Date: 06/23/2026 09:30 AM PDT Description: Language Servers for AWS provide the underlying language-server runtime that powers Amazon Q Developer’s AI coding assistance across its IDE plugins (Visual Studio Code, JetBrains, Eclipse, and Visual Studio). We identified CVE-2026-12957, an improper trust boundary enforcement issue in Language Servers for AWS before version 1.65.0. If a local user opens a maliciously crafted workspace, any commands within the project configuration files may be automatically executed. This issue requires the user to trust the workspace when prompted. We identified CVE-2026-12958, a missing symlink-validation issue in Language Servers for AWS before version 1.69.0. This may occur when a local user opens a workspace with a maliciously crafted symlink that resolves to a file path outside the workspace trust boundary. These issues affect the Amazon Q Developer IDE plugins, which bundle Language Servers for AWS. Both issues are remediated in Language Servers for AWS version 1.69.0. Affected products & versions:- Language Servers for AWS: < 1.69. – Amazon Q Developer for Visual Studio Code: < 2.20- Amazon Q Developer for JetBains: < 4.3- Amazon Q Developer for Eclipse: < 2.7.4- AWS Toolkit with Amazon Q for Visual Studio: < 1.94.0.0 Please refer to the article below for the most up-to-date and complete information related to this AWS Security Bulletin.

Bulletin ID: 2026-046-AWS Scope: AWS Content Type: Important (requires attention) Publication Date: 06/18/2026 17:30 PM PDT Description: containerd is an open-source container runtime used by Kubernetes via the Container Runtime Interface (CRI) plugin. It underpins AWS managed container services including Amazon Elastic Kubernetes Service (Amazon EKS), Amazon Elastic Container Service (Amazon ECS), AWS Fargate, Bottlerocket, and Amazon Linux. AWS identified five issues in the containerd CRI plugin affecting versions 1.7 through 2.3. – CVE-2026-50195 (GHSA-cvxm-645q-p574) – CRI checkpoint import, local image tag poisoning – CVE-2026-53488 (GHSA-xhf5-7wjv-pqxp) – image-config LABEL -> host-root command exec – CVE-2026-53492 (GHSA-33vj-92qq-66hc) – CDI annotation smuggling during checkpoint restore – CVE-2026-53489 (GHSA-rgh6-rfwx-v388) – arbitrary host file read via symlink in checkpoint restore – CVE-2026-47262 (GHSA-jpcc-p29g-p8mq) – image-triggered runtime DoS Impacted versions: containerd 1.7, 2.0, 2.1, 2.2, 2.3 Please refer to the article below for the most up-to-date and complete information related to this AWS Security Bulletin.

Bulletin ID: 2026-044-AWS Scope: AWS Content Type: Important (requires attention) Publication Date: 06/17/2026 14:15 PM PDT Description: The AWS Bedrock AgentCore Python SDK (bedrock-agentcore) is an open-source SDK that enables developers to build, deploy, and manage agents on AWS Bedrock AgentCore. We identified CVE-2026-12530, an issue in the install_packages() method of the Code Interpreter client. The method applied an incomplete blocklist to sanitize package name arguments before constructing a ‘pip install’ shell command executed within the Code Interpreter sandbox. This allowed crafted package name arguments to bypass validation ‐ most critically, pip’s ‘‐‐index‐url’ flag, which could redirect package resolution to an third‐party‐controlled PyPI server, and the ‘-r’ flag, which could read and expose arbitrary sandbox files. Impacted versions: AWS Bedrock AgentCore Python SDK (bedrock-agentcore) versions >= 1.1.3 and < 1.6.1 Please refer to the article below for the most up-to-date and complete information related to this AWS Security Bulletin.