Skip to main content
VulnerabilityPublished

CVE-2026-85012: @amazon-codecatalyst/blueprints.blueprint · OS Command Injection

Affects @amazon-codecatalyst/blueprints.blueprintSource CVE Database V5

0

Not known to be exploited · CVSS 8.0 High : upgrade to 0.3.156 soon.

Data as of 26 Oct 2026, 17:16 UTC

CVSS 3.1 base score
8.0High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
2.2% chance of exploitation in 30 days – higher than 82% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CISA SSVC
Exploitation
No evidence of active exploitation and no public proof of concept
Automatable
Attackers cannot reliably automate steps 1–4 of the kill chain
Technical impact
Total control over the software or total information disclosure

CISA SSVC assessment, 2026-09-03.

Patch
Available – fixed in 0.3.156
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 3 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade @amazon-codecatalyst/blueprints.blueprint to 0.3.156.

Affected software

ProductAffectedFixed in
AWS@amazon-codecatalyst/blueprints.blueprintAffected
  • <0.3.156
Fixed in
  • 0.3.156

AI-suggested

Users of the codecatalyst-blueprints framework should upgrade to version 0.3.156 or later to eliminate the vulnerability. For users of the AWS CodeCatalyst service, no action is required because the service enforces server-side validation and isolated execution environments that prevent exploitation, even for blueprint versions prior to 0.3.156.

Description

CVE-2026-85012 is a high-severity OS command injection vulnerability in the blueprint resynthesis framework of Amazon Web Services codecatalyst-blueprints versions before 0.3.156. It allows a user with commit permissions to execute arbitrary commands via shell metacharacters in the owner field of a local merge strategy entry in a crafted .ownership-file. Version 0.3.156 and later remove shell interpretation of this field and enforce an allowlist, eliminating the injection risk. The AWS CodeCatalyst service itself applies server-side validation and isolated execution environments, so no action is required for users of the managed service.

Reports on CVE-2026-85012

References

Community reviews

Loading reviews…