Vulnerability Database · RubyGems · json · Version

json 2.11.1

2.11.1 is affected by 1 vulnerability.

The vulnerabilities that cover this exact version are listed below with the fixed version to move to. The upgrade Vulert recommends: 3.1.0.

Critical 0 High 0 Medium 0 Low 1 Unrated 0

All json versions & vulnerabilities → Source repository Search the database for this package →

Released 24 Apr 2025 Licence Ruby Also known from other sources 1 Newer releases 137 Database updated 23/Oct/2026

Release and licence data published by RubyGems. Licence information is not legal advice.

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01 Vulnerabilities affecting this version

json 2.11.1 vulnerabilities

1 vulnerability cover json 2.11.1. Open the full list in the database.

Vulnerability	Severity	Fixed version	Disclosed
CVE-2026-54696: Ruby json Package Heap Buffer Overflow Vulnerability	3.7 low	2.19.9	23 Jul 2026

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Questions

About json 2.11.1

Is json 2.11.1 vulnerable?

Yes. 1 vulnerability in the Vulert database cover json 2.11.1: 0 critical, 0 high, 0 medium and 1 low. The upgrade Vulert recommends is 3.1.0, and each entry above names the fixed version to move to.

Which version of json should I use instead of 2.11.1?

3.1.0 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 2.11.1 the latest release of json?

No. 2.11.1 was published 24 Apr 2025, 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 json for upcoming vulnerabilities?

Upload the manifest or SBOM for your application at vulert.com/scanner and Vulert keeps checking the json version you actually run against new disclosures, then alerts you when one affects it. There is no installation and no source-code access required.