CVE-2026-18654 Affecting localstack package, versions <4.14.0-r22
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-CHAINGUARDLATEST-LOCALSTACK-18836614
- published15 Aug 2026
- disclosed3 Aug 2026
Introduced: 3 Aug 2026
NewCVE-2026-18654 (opens in a new tab)How to fix?
Upgrade Chainguard localstack to version 4.14.0-r22 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream localstack package and not the localstack package as distributed by Chainguard.
See How to fix? for Chainguard relevant fixed versions and status.
Key exchange without entity authentication in the EMR SSH helper commands in Amazon AWS CLI before 1.45.28 and AWS CLI v2 before 2.35.3 might allow man-in-the-middle attackers to intercept SSHsessions and file transfers via network positioning between the client and the EMR cluster endpoint.
To remediate this issue, users should upgrade to AWS CLI v1 1.45.28 or later, or AWS CLI v2 2.35.3 or later.