SEPTEMBER 14, 2026
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Case File

CVE-2026-87913

MEDIUM · CVSS 5.9 EPSS 0.25% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-10 · Last synced 2026-09-14

CyberRota Analysis

AI-Generated

A vulnerability exists in the AWS Security Agent MCP server prior to version 0.2.0, where a lack of S3 bucket ownership verification could allow remote attackers to access private source archives of scanned workspaces, potentially exposing sensitive credentials and infrastructure details. Organizations utilizing this service should prioritize upgrading to version 0.2.0 and ensure that their scan output buckets are owned by their own accounts to mitigate the risk of unauthorized access.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-87913
Severity
MEDIUM
CVSS
5.9
EPSS
0.25%

Original NVD Description

A missing S3 bucket ownership verification in the AWS Security Agent MCP server before 0.2.0 version might allow remote attackers to obtain the private source archive of a scanned workspace, including credentials and infrastructure state contained in that archive, via a pre-registered storage bucket whose name is derived from a publicly known account identifier. To remediate this issue, users should upgrade to version 0.2.0. Users should also verify that the scan output bucket in their account is owned by their own account, because upgrading does not release a bucket name that a third party has already registered.