Security readout for executives and security teams
CVE-2018-1000076 is a RubyGems signature-verification flaw. Older RubyGems could install a gem with improper or conflicting signatures, weakening trust in package authenticity. The issue matters most where Ruby gems are installed in production, CI, build pipelines, or developer environments. Exposure is likely on older Ruby or RubyGems installations, especially systems using distro-packaged Ruby, JRuby, CI images, or application build hosts from the 2018 advisory period that were never updated. Treat as a supply-chain hygiene issue. Prioritize remediation for build systems and production deployment paths, but the provided evidence does not support emergency active-exploitation handling. Mitigation focus: Upgrade RubyGems to 2.7.6 or a vendor-fixed package.; Apply relevant Debian, Ubuntu, Red Hat, or SUSE security updates.; Refresh old CI, container, and developer base images containing RubyGems..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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CVE-2018-1000076 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
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CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- DSA-4219CVE reference · vendor-advisory, x_refsource_DEBIAN
- USN-3621-1CVE reference · vendor-advisory, x_refsource_UBUNTU
- RHSA-2018:3729CVE reference · vendor-advisory, x_refsource_REDHAT
- RHSA-2018:3730CVE reference · vendor-advisory, x_refsource_REDHAT
- [debian-lts-announce] 20180423 [SECURITY] [DLA 1358-1] ruby1.9.1 security updateCVE reference · mailing-list, x_refsource_MLIST
- RHSA-2018:3731CVE reference · vendor-advisory, x_refsource_REDHAT
- [debian-lts-announce] 20180402 [SECURITY] [DLA 1337-1] jruby security updateCVE reference · mailing-list, x_refsource_MLIST
- [debian-lts-announce] 20180714 [SECURITY] [DLA 1421-1] ruby2.1 security updateCVE reference · mailing-list, x_refsource_MLIST
- DSA-4259CVE reference · vendor-advisory, x_refsource_DEBIAN
- https://github.com/rubygems/rubygems/commit/f5042b879259b1f1ce95a0c5082622c646376693CVE reference · x_refsource_MISC
- [debian-lts-announce] 20180401 [SECURITY] [DLA 1336-1] rubygems security updateCVE reference · mailing-list, x_refsource_MLIST
- [debian-lts-announce] 20190520 [SECURITY] [DLA 1796-1] jruby security updateCVE reference · mailing-list, x_refsource_MLIST
- RHSA-2019:2028CVE reference · vendor-advisory, x_refsource_REDHAT
- RHSA-2020:0542CVE reference · vendor-advisory, x_refsource_REDHAT
- RHSA-2020:0591CVE reference · vendor-advisory, x_refsource_REDHAT
- RHSA-2020:0663CVE reference · vendor-advisory, x_refsource_REDHAT
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.