CVE-2026-112407

Incorrect privilege assignment in AWS CICD-toolchain-for-serverless-applications

State: Published
Severity: 8.7 High
Published: Oct 20, 2026
Updated: Oct 28, 2026
Reserved: Oct 19, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	8.7 High	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N	AMZN
3.1	8.8 High	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	AMZN

Weaknesses

CWE-266 Incorrect privilege assignment

Affected Products

Product	Versions
CICD-toolchain-for-serverless-applicationsAWS	1.0.7 through 1.0.10Affected

References

https://github.com/aws-samples/aws-lambda-sample-applications/releases/tag/1.0.11release-notespatch
https://github.com/aws-samples/aws-lambda-sample-applications/security/advisories/GHSA-f76m-4xrx-pvq5third-party-advisory
https://aws.amazon.com/security/security-bulletins/2026-141-aws/vendor-advisory

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