Vulnerability Database · PyPI · localstack · Version
localstack 2026.4.0
2026.4.0 is affected by 3 vulnerabilities.
The vulnerabilities that cover this exact version are listed below with the fixed version to move to. The upgrade Vulert recommends: 2026.8.2.
Critical 0 High 2 Medium 1 Low 0 Unrated 0
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Released 29 Apr 2026
Licence Apache-2.0
Also known from other sources 1
Newer releases 300
Database updated 23/Oct/2026
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01 Vulnerabilities affecting this version
localstack 2026.4.0 vulnerabilities
3 vulnerabilities cover localstack 2026.4.0. Open the full list in the database.
| Vulnerability | Severity | Fixed version | Disclosed |
|---|---|---|---|
| CVE-2023-48054: Missing SSL certificate validation in localstack | 7.4 high | No fix published | 16 Nov 2023 |
| CVE-2023-48054: Missing SSL Certificate Validation in localstack v2.3.2 | 7.4 high | No fix published | 16 Nov 2023 |
| Cross-site scripting in LocalStack | 6.1 medium | No fix published | 18 Jun 2021 |
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Questions
About localstack 2026.4.0
Is localstack 2026.4.0 vulnerable?
Yes. 3 vulnerabilities in the Vulert database cover localstack 2026.4.0: 0 critical, 2 high, 1 medium and 0 low. The upgrade Vulert recommends is 2026.8.2, and each entry above names the fixed version to move to.
Which version of localstack should I use instead of 2026.4.0?
2026.8.2 is the version Vulert recommends for this release line. The version table on the package page lists every release with the vulnerabilities recorded against it.
Is 2026.4.0 the latest release of localstack?
No. 2026.4.0 was published 29 Apr 2026, and newer releases exist. Newer is not automatically safer — the version table on the package page shows what each release carries.
How do I monitor localstack for upcoming vulnerabilities?
Upload the manifest or SBOM for your application at vulert.com/scanner and Vulert keeps checking the localstack version you actually run against new disclosures, then alerts you when one affects it. There is no installation and no source-code access required.