Vulnerability Database · Alpine · ruby · Version

ruby 2.6.5-r0

2.6.5-r0 is affected by 8 vulnerabilities.

The vulnerabilities that cover this exact version are listed below with the fixed version to move to.

Critical 2 High 6 Medium 0 Low 0 Unrated 0

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Database updated 23/Oct/2026

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01 Vulnerabilities affecting this version

ruby 2.6.5-r0 vulnerabilities

8 vulnerabilities cover ruby 2.6.5-r0. Open the full list in the database.

Vulnerability	Severity	Fixed version	Disclosed
Integer Overflow and Buffer Overflow in Ruby CGI.escape_html	9.8 critical	2.7.5-r0	06 Feb 2022
Critical Buffer Overflow Vulnerability in Ruby Package - CVE-2021-41816	9.8 critical	2.7.5-r0	06 Feb 2022
Buffer Over-read Vulnerability in Ruby	7.5 high	2.7.6-r0	09 May 2022
Buffer Over-read Vulnerability in Ruby Package: CVE-2022-28739	7.5 high	2.7.6-r0	09 May 2022
Vulnerability in Ruby CGI::Cookie.parse	7.5 high	2.7.5-r0	01 Jan 2022
Critical Security Flaw in Ruby Package: CGI::Cookie Mismanagement	7.5 high	2.7.5-r0	01 Jan 2022
Regular Expression Denial of Service (ReDoS) in Ruby Date Gem	7.5 high	2.7.5-r0	01 Jan 2022
ReDoS Vulnerability in Ruby Package: CVE-2021-41817	7.5 high	2.7.5-r0	01 Jan 2022

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Questions

About ruby 2.6.5-r0

Is ruby 2.6.5-r0 vulnerable?

Yes. 8 vulnerabilities in the Vulert database cover ruby 2.6.5-r0: 2 critical, 6 high, 0 medium and 0 low. Each entry above names the fixed version to move to.

How do I monitor ruby for upcoming vulnerabilities?

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