CVE-2026-70447 in AWS CodeBuild Plugin
Summary
by MITRE • 08/05/2026
Missing permission checks in Jenkins AWS CodeBuild Plugin 0.59 and earlier allow attackers with Overall/Read permission to enumerate credentials IDs of credentials stored in Jenkins.
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Analysis
by VulDB Data Team • 08/05/2026
The vulnerability described represents a critical authorization flaw in the Jenkins AWS CodeBuild Plugin version 0.59 and earlier, where insufficient permission validation allows unauthorized access to sensitive credential information. This issue specifically affects systems where attackers possess only the Overall/Read permission level within Jenkins, which typically grants basic read access to the system but should not permit enumeration of stored credentials. The flaw stems from a lack of proper access control checks when processing requests related to AWS CodeBuild plugin functionality, enabling malicious actors to discover credential identifiers that are normally protected from casual inspection.
The technical implementation of this vulnerability occurs within the plugin's handling of credential-related API calls where the system fails to verify whether the requesting user has appropriate authorization levels beyond basic read permissions. This oversight creates an information disclosure channel through which attackers can systematically enumerate available credential IDs without requiring higher privilege levels such as credentials management or administration access. The vulnerability directly maps to CWE-284 Access Control Bypass, as it allows unauthorized users to access resources that should be restricted based on their permission levels.
From an operational perspective, this vulnerability significantly weakens the security posture of Jenkins environments using the affected plugin, as it provides attackers with valuable reconnaissance data for subsequent attacks. Once credential IDs are enumerated, adversaries can potentially exploit additional vulnerabilities or attempt brute force attacks against the discovered credentials, especially if these identifiers correspond to AWS access keys or other sensitive authentication tokens. The impact extends beyond simple information disclosure since it enables attackers to build targeted attack vectors against cloud infrastructure integrations that rely on Jenkins for CI/CD automation workflows.
The security implications of this vulnerability align with ATT&CK technique T1552.001 Credential Access: Credentials In Files, as it facilitates unauthorized access to credential storage mechanisms through improper access controls. Organizations using Jenkins with AWS CodeBuild plugin should immediately implement mitigations including updating to version 0.60 or later where the permission checks have been properly implemented. Additionally administrators should review existing user permissions and ensure that privilege levels are appropriately restricted according to the principle of least privilege. The vulnerability demonstrates the critical importance of proper access control implementation in plugin architectures, particularly when integrating with cloud services that handle sensitive authentication credentials.