CVE-2026-85012Network attack vector

Command execution via unsanitized ownership-file owner

Published Sep 3, 2026 · Updated Sep 3, 2026

OS command injection in @amazon-codecatalyst/blueprints.blueprint before 0.3.156 allows remote authenticated users to execute commands. During resynthesis, the framework passes a local merge entry's owner field from .ownership-file to an OS command through a shell without validation. Repository commit permission is required, and commands run with the resynthesis environment's privileges; CodeCatalyst service validation blocks this path.

CVSS severity8.0
High
EPSS probability1.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in @amazon-codecatalyst/blueprints.blueprint before 0.3.156 allows remote authenticated users to execute commands. During resynthesis, the framework passes a local merge entry's owner field from .ownership-file to an OS command through a shell without validation. Repository commit permission is required, and commands run with the resynthesis environment's privileges; CodeCatalyst service validation blocks this path.

The record

CVE
CVE-2026-85012
Published
Sep 3, 2026
Updated
Sep 3, 2026
Vendor
Amazon Web Services
Product
@amazon-codecatalyst/blueprints.blueprint
Classifications
CWE-78, T1059
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 3, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 3, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <0.3.156

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Amazon Web Services · @amazon-codecatalyst/blueprints.blueprintversion=0 <0.3.156

Published CVSS scores

8.0GitHubCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059Command and Scripting Interpreter

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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