Improper Encoding or Escaping of Output Affecting software.amazon.awssdk:cloudfront package, versions [2.18.33,2.41.30)
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- published29 Mar 2026
- disclosed27 Mar 2026
- creditUnknown
Introduced: 27 Mar 2026
CVE NOT AVAILABLE CWE-116 (opens in a new tab)How to fix?
Upgrade software.amazon.awssdk:cloudfront to version 2.41.30 or higher.
Overview
Affected versions of this package are vulnerable to Improper Encoding or Escaping of Output through the buildCannedPolicy and buildCustomPolicy functions in the CloudFront signing utilities. An attacker can alter the generated CloudFront policy document and weaken access restrictions by supplying crafted resourceUrl or ipAddress values containing special characters. The issue affects applications that pass untrusted input into CloudFront signed URL or signed cookie generation, where the resulting policy is later used to enforce access control.