An issue was discovered in RubyGems 2.6 and later through 3.0.2. A crafted gem with a multi-line name is not handled correctly. Therefore, an attacker could inject arbitrary code to the stub line of gemspec, which is eval-ed by code in ensure_loadable_spec during the preinstall check.
CVE-2019-8324
This high-severity CVE scores 8.8 under NVD CVSS v3. EPSS exploit probability: 0.5%, top 34% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 8.8
- EG Score
- 8.8(medium)
- EPSS
- 86.9%
- KEV
- Not listed
Published
June 17, 2019
Last Modified
November 21, 2024
References (8)
- cve@mitrehttp://lists.opensuse.org/opensuse-security-announce/2019-07/msg00036.html
- cve@mitrehttps://access.redhat.com/errata/RHSA-2019:1972
- cve@mitrehttps://hackerone.com/reports/328571
- cve@mitrehttps://lists.debian.org/debian-lts-announce/2020/08/msg00027.html
- af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00036.html
- af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2019:1972
- af854a3a-2127-422b-91ae-364da2661108https://hackerone.com/reports/328571
- af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2020/08/msg00027.html
Vendor Advisories for CVE-2019-8324(7)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
- RHSA-2020:2769Red Hat Product SecurityHigh
Red Hat Security Advisory: ruby security update
- RHSA-2019:1972Red Hat Product SecurityHigh
Red Hat Security Advisory: ruby:2.5 security update
- RHSA-2019:1429Red Hat Product SecurityHigh
Red Hat Security Advisory: CloudForms 4.7.5 security, bug fix and enhancement update
- RHSA-2019:1235Red Hat Product SecurityHigh
Red Hat Security Advisory: ruby security update
- RHSA-2019:1151Red Hat Product SecurityHigh
Red Hat Security Advisory: rh-ruby23-ruby security update
- RHSA-2019:1150Red Hat Product SecurityHigh
Red Hat Security Advisory: rh-ruby24-ruby security, bug fix, and enhancement update
- RHSA-2019:1148Red Hat Product SecurityHigh
Red Hat Security Advisory: rh-ruby25-ruby security, bug fix, and enhancement update
Patch Availability(8)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | ruby2.3-tcltk (2.3.1-2~16.04.12) @ xenial | 2026-05-27 | ubuntu |
| redhat | ruby-0:2.0.0.648-37.el7_4 | 2020-06-30 | redhat |
| redhat | ruby:2.5-8000020190524123348.55190bc5 | 2019-08-07 | redhat |
| redhat | ruby-0:2.4.6-91.el7cf | 2019-06-11 | redhat |
| redhat | ruby-0:2.0.0.648-35.el7_6 | 2019-05-15 | redhat |
| redhat | rh-ruby24-ruby-0:2.4.6-92.el7 | 2019-05-13 | redhat |
| redhat | rh-ruby25-ruby-0:2.5.5-7.el7 | 2019-05-13 | redhat |
| redhat | rh-ruby23-ruby-0:2.3.8-70.el7 | 2019-05-13 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(1 across 1 ecosystem)
RubyGems(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| rubygems-update | 3.0.0, 3.0.1 | 3.0.2 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Additional Vendor Advisories
(1)
Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.
Data Freshness Timeline
(refreshed 12× in last 7d / 45× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-22 14:05 UTCEPSS rescore
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- 2026-07-20 14:34 UTCOSV refresh
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- 2026-07-06 16:25 UTCEPSS rescore
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- 2026-07-03 09:56 UTCOSV refresh
- 2026-07-01 15:03 UTCEPSS rescore
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- 2026-06-30 23:20 UTCEPSS rescore
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- 2026-06-15 17:46 UTCEPSS rescore
- 2026-06-15 00:13 UTCOSV refresh
- 2026-06-14 23:15 UTCEPSS rescore
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- 2026-05-27 18:18 UTCEG score recompute
- 2026-05-27 18:18 UTCVendor advisory
- 2026-05-27 13:39 UTCEPSS rescore
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- 2026-05-24 16:47 UTCEPSS rescore
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Frequently asked(5)
What is CVE-2019-8324?
When was CVE-2019-8324 disclosed?
Is CVE-2019-8324 actively exploited?
What is the CVSS score of CVE-2019-8324?
How do I remediate CVE-2019-8324?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2019-8324
Is Your Infrastructure Affected by CVE-2019-8324?
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