Cross-site Scripting in in JRuby

MEDIUM 4.3CVE-2010-1330 · GHSA-wmq2-jc9m-xp4m · Published 23/11/2012 · updated 16/06/2026

In short

CVE-2010-1330 is a MEDIUM (CVSS 4.3) vulnerability affecting org.jruby:jruby-core, jruby (jruby).
Chance of exploitation in the next 30 days (EPSS): 2.2%, higher than 82.7% of all vulnerabilities.
Fix: update to 1.4.1 or later.

Package	Affected versions	Patched versions
org.jruby:jruby-core Maven	`< 1.4.1`	`1.4.1`
jruby jruby	`= 0.9.0= 0.9.1= 0.9.2= 0.9.8= 0.9.9= 1.0.0= 1.0.1= 1.0.2= 1.0.3= 1.1= 1.1.1= 1.1.2= 1.1.3= 1.1.4= 1.1.5= 1.1.6= 1.2.0= 1.3.0= 1.3.1= 1.4.0≤ 1.4.0`	No fix yet

Description

The regular expression engine in JRuby before 1.4.1, when $KCODE is set to 'u', does not properly handle characters immediately after a UTF-8 character, which allows remote attackers to conduct cross-site scripting (XSS) attacks via a crafted string.

NVD description

References

nvd.nist.gov/vuln/detail/CVE-2010-1330 · ADVISORY
bugs.gentoo.org/show_bug.cgi · WEB
bugzilla.redhat.com/show_bug.cgi · WEB
exchange.xforce.ibmcloud.com/vulnerabilities/80277 · WEB
jruby/jruby · PACKAGE
rhn.redhat.com/errata/RHSA-2011-1456.html · WEB
secunia.com/advisories/46891 · WEB
jruby.org/2010/04/26/jruby-1-4-1-xss-vulnerability.html · WEB
osvdb.org/77297 · WEB

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