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Advisory record · GHSA-443w-3rq3-5m5h

AWS SDK for Java 2.0: Improper Handling of Special Characters in CloudFront Signing Utilities

CVSS 4.0, no score published

Published by the GitHub Advisory Database at 27 Mar 2026, 20:43 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
software.amazon.awssdk:cloudfrontMaven>=2.18.33, <2.41.302.41.30
Identifiers
GHSA-443w-3rq3-5m5h
Weakness (CWE)
CWE-20 · CWE-116
Tags
Published
27 Mar 2026
Updated
10 Sept 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

The software.amazon.awssdk:cloudfront package, versions 2.18.33 through 2.41.29, does not properly handle special characters such as double quotes and backslashes in input passed to its CloudFront signing utilities. If an application passes unsanitized input to these utilities, the generated signed URL or cookie policy may not reflect the intended access restrictions. Upgrade to version 2.41.30. The source advises validating input in application code before passing it to these utilities.

Written 2 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
Not published None 4.0 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:H/SI:N/SA:N GitHub Advisory Database
  • CISA KEV Not listed.
  • EPSS No score.

Timeline

  1. 31 Oct 2026, 14:17 UTC First seen by agentprime
  2. 31 Oct 2026, 14:17 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.