CVE-2018-1000077 RubyGems Improper Input Validation vulnerability

What is CVE-2018-1000077?

CVE-2018-1000077 is a medium-severity vulnerability in Debian Debian Linux, published on 13 Mar 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

RubyGems version Ruby 2.2 series: 2.2.9 and earlier, Ruby 2.3 series: 2.3.6 and earlier, Ruby 2.4 series: 2.4.3 and earlier, Ruby 2.5 series: 2.5.0 and earlier, prior to trunk revision 62422 contains a Improper Input Validation vulnerability in ruby gems specification homepage attribute that can result in a malicious gem could set an invalid homepage URL. This vulnerability appears to have been fixed in 2.7.6.

Weakness: CWE-20

Which versions are affected by CVE-2018-1000077?

4 open source packages ship an affected version, including org.jruby:jruby-stdlib and rubygems-update. It affects 2 products.

Products include Debian Debian Linux, Rubygems Rubygems.

How do I fix CVE-2018-1000077?

Upgrade org.jruby:jruby-stdlib to 9.1.16.0 or later.

Is CVE-2018-1000077 being exploited?

There is no known exploitation of CVE-2018-1000077 in the wild and no public exploit code.

Other vulnerabilities in Debian Debian Linux

• CVE-2015-3306 ProFTPD Improper Access Control Exploited Critical 10.0
• CVE-2025-49113 RoundCube Webmail Deserialization of Untrusted Data Exploited Critical 9.9
• CVE-2026-24061 GNU InetUtils Argument Injection Exploited Critical 9.8
• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2018-1000077, GHSA-gv86-43rv-79m2, UBUNTU-CVE-2018-1000077.