---
id: CVE-2026-87912
title: >-
  Missing S3 bucket ownership verification in the AWS Security Agent plugin for
  aws-agents-for-devsecops
summary: >-
  A missing S3 bucket ownership verification in the AWS Security Agent plugin in
  Amazon aws-agents-for-devsecops before 1.1.0 might allow remote attackers to
  obtain the private source archive of a scanned workspace, including
  credentials a…
severity: medium
cvss: 5.9
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N'
cvssSource: cna
cwe:
  - CWE-283
  - CWE-341
vendor: AWS
product: AWS Security Agent plugin
affected:
  - security_agent_plugin 1.0.0
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-10T16:40:59.832099Z'
published: '2026-09-10'
updated: '2026-09-10'
sourceUpdated: '2026-09-10T16:41:12.092Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-87912'
references:
  - url: >-
      https://github.com/aws/agent-toolkit-for-aws/commit/1c0dfd4f677237ee9769769209969ca80b112140
  - url: 'https://aws.amazon.com/security/security-bulletins/2026-105-aws/'
  - url: >-
      https://github.com/aws/agent-toolkit-for-aws/security/advisories/GHSA-2px6-hhjp-3g5x
tags:
  - cve.org
epss: 0.00441
epssPercentile: 0.35734
ingestedAt: '2026-09-11T14:42:19.869Z'
---

## Overview

A missing S3 bucket ownership verification in the AWS Security Agent plugin in Amazon aws-agents-for-devsecops before 1.1.0 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 1.1.0. 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.

## Affected

- `security_agent_plugin 1.0.0`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.