RubyGems Improper Verification of Cryptographic Signature vulnerability
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, and Ruby 2.5 series: 2.5.0 and earlier, prior to trunk revision 62422 contain an Improper Verification of Cryptographic Signature vulnerability in package.rb. This can result in a mis-signed gem being installed, as the tarball would contain multiple gem signatures. This vulnerability has been fixed in 2.7.6.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Java / Kotlin (Maven) | org.jruby:jruby-stdlib | < 9.1.16.0 | 9.1.16.0 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2018-1000076
- https://github.com/jruby/jruby/commit/0b06b48ab4432237ce5fc1bef47f2c6bcf7843f7
- https://github.com/rubygems/rubygems/commit/f5042b879259b1f1ce95a0c5082622c646376693
- https://www.debian.org/security/2018/dsa-4259
- https://www.debian.org/security/2018/dsa-4219
- https://usn.ubuntu.com/3621-1
- https://lists.debian.org/debian-lts-announce/2019/05/msg00028.html
- https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html
- https://lists.debian.org/debian-lts-announce/2018/04/msg00023.html
- https://lists.debian.org/debian-lts-announce/2018/04/msg00001.html
- https://lists.debian.org/debian-lts-announce/2018/04/msg00000.html
- https://github.com/rubygems/rubygems
- https://access.redhat.com/errata/RHSA-2020:0663
- https://access.redhat.com/errata/RHSA-2020:0591
- https://access.redhat.com/errata/RHSA-2020:0542
- https://access.redhat.com/errata/RHSA-2019:2028
- https://access.redhat.com/errata/RHSA-2018:3731
- https://access.redhat.com/errata/RHSA-2018:3730
- https://access.redhat.com/errata/RHSA-2018:3729
- http://blog.rubygems.org/2018/02/15/2.7.6-released.html
- http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00036.html
- CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H- Weakness (CWE)
CWE-347- Platform
- Java / Kotlin (Maven)
- Package
org.jruby:jruby-stdlib- Disclosed
- 14.05.2022
- Updated
- 11.10.2026 12:21
Sources and licenses
OSV / GitHub Advisory Database - GHSA-mc6j-h948-v2p6 - CC BY 4.0
Vulnerability history: org.jruby:jruby-stdlib
All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 7
- First → latest
- 05.2022 05.2022
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 1
- High 3
- Medium 3
Disclosures per year
- 2022: 7
- 2023: 0
- 2024: 0
- 2025: 0
- 2026: 0
-
RubyGems Improper Verification of Cryptographic Signature vulnerability this entry
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