CVE-2026-112407

high

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.

References

https://github.com/aws-samples/aws-lambda-sample-applications/security/advisories/GHSA-f76m-4xrx-pvq5

https://github.com/aws-samples/aws-lambda-sample-applications/releases/tag/1.0.11

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-105360

https://aws.amazon.com/security/security-bulletins/2026-141-aws/

Details

Source: Mitre, NVD

Published: 2026-10-20

Updated: 2026-10-22

Risk Information

CVSS v2

Base Score: 9

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 8.8

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High

CVSS v4

Base Score: 8.7

Vector: 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

Severity: High

EPSS

EPSS: 0.00345