CVE-2026-87912 PUBLISHED

Missing S3 bucket ownership verification in the AWS Security Agent plugin for aws-agents-for-devsecops

Assigner: AMZN
Reserved: 09.09.2026 Published: 10.09.2026 Updated: 10.09.2026

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.

Metrics

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:H/SI:L/SA:N
CVSS Score: 5.1

Product Status

Vendor AWS
Product AWS Security Agent plugin
Versions Default: unaffected
  • Version 1.0.0 is affected

Credits

  • glow.io finder

References

Problem Types

  • CWE-283 Unverified ownership CWE
  • CWE-341 Predictable from observable state CWE

Impacts

  • CAPEC-616 Establish Rogue Location