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Vulnerability record · CVE-2006-1931 · published 20 April 2006

CVE-2006-1931: Yukihiro matsumoto ruby vulnerability

YYukihiro Matsumoto · Ruby

The HTTP/XMLRPC server in Ruby before 1.8.2 uses blocking sockets, which allows attackers to cause a denial of service (blocked connections) via a large amount of data.

5.0 CVSS 2.0 Medium EPSS 10% · top 4.5%
5.0CVSS 2.0 base score
10%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
44References
16 Jun 2026Last modified by NVD

Description

The HTTP/XMLRPC server in Ruby before 1.8.2 uses blocking sockets, which allows attackers to cause a denial of service (blocked connections) via a large amount of data.

AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
ftp://ftp.ruby-lang.org/pub/ruby/1.8/ruby-1.8.2-webrick-dos-1.patch Patch
ftp://ftp.ruby-lang.org/pub/ruby/1.8/ruby-1.8.2-xmlrpc-dos-1.patch
http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-dev/27787 Patch
http://secunia.com/advisories/16904
http://secunia.com/advisories/19772
http://secunia.com/advisories/19804
http://secunia.com/advisories/20024
http://secunia.com/advisories/20064
http://secunia.com/advisories/20457
http://secunia.com/advisories/21657
http://securitytracker.com/id?1015978
http://www.debian.org/security/2006/dsa-1157
http://www.gentoo.org/security/en/glsa/glsa-200605-11.xml
http://www.mandriva.com/security/advisories?name=MDKSA-2006:079
http://www.novell.com/linux/security/advisories/2006-06-02.html
http://www.osvdb.org/24972
http://www.redhat.com/support/errata/RHSA-2006-0427.html
http://www.securityfocus.com/bid/17645
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=189540 Patch
https://exchange.xforce.ibmcloud.com/vulnerabilities/26102
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11100
https://usn.ubuntu.com/273-1/
ftp://ftp.ruby-lang.org/pub/ruby/1.8/ruby-1.8.2-webrick-dos-1.patch Patch
ftp://ftp.ruby-lang.org/pub/ruby/1.8/ruby-1.8.2-xmlrpc-dos-1.patch
http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-dev/27787 Patch
http://secunia.com/advisories/16904
http://secunia.com/advisories/19772
http://secunia.com/advisories/19804
http://secunia.com/advisories/20024
http://secunia.com/advisories/20064
http://secunia.com/advisories/20457
http://secunia.com/advisories/21657
http://securitytracker.com/id?1015978
http://www.debian.org/security/2006/dsa-1157
http://www.gentoo.org/security/en/glsa/glsa-200605-11.xml
http://www.mandriva.com/security/advisories?name=MDKSA-2006:079
http://www.novell.com/linux/security/advisories/2006-06-02.html
http://www.osvdb.org/24972
http://www.redhat.com/support/errata/RHSA-2006-0427.html
http://www.securityfocus.com/bid/17645

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2006-1931), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.