An issue was discovered in RubyGems 2.6 and later through 3.0.2.
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.
Noroxi analysis
No Noroxi analysis for this record yet
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We use this product, ask for help- Published
- Jun 17, 2019
- Updated
- Jun 16, 2026
- EPSS
- 3.2% · 88th percentile
- CWE
- CWE-94
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Report tools
Action score
36
Monitor
Low priority for now.
- CVSS
- 35 / 40 · 8.8 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 1 / 30 · 3.2%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| rubygems | rubygems | cpe:2.3:a:rubygems:rubygems |
| debian | debian linux | cpe:2.3:o:debian:debian_linux |
| opensuse | leap | cpe:2.3:o:opensuse:leap |
| redhat | enterprise linux | cpe:2.3:o:redhat:enterprise_linux |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- debian debian linux9.0
- opensuse leap15.0
- opensuse leap15.1
- redhat enterprise linux8.0
- rubygems rubygems2.6.0 and later · up to 3.0.2 inclusive
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| AlmaLinux:8 | rubygem-abrt | before 0.3.0-4.module_el8.5.0+259+8cec6917 | 0.3.0-4.module_el8.5.0+259+8cec6917 |
| AlmaLinux:8 | rubygem-abrt | before 0.3.0-4.module_el8.5.0+2623+08a8ba32 | 0.3.0-4.module_el8.5.0+2623+08a8ba32 |
| AlmaLinux:8 | rubygem-abrt-doc | before 0.3.0-4.module_el8.5.0+259+8cec6917 | 0.3.0-4.module_el8.5.0+259+8cec6917 |
| AlmaLinux:8 | rubygem-abrt-doc | before 0.3.0-4.module_el8.5.0+2623+08a8ba32 | 0.3.0-4.module_el8.5.0+2623+08a8ba32 |
| AlmaLinux:8 | rubygem-bson | before 4.3.0-2.module_el8.5.0+259+8cec6917 | 4.3.0-2.module_el8.5.0+259+8cec6917 |
| AlmaLinux:8 | rubygem-bson | before 4.3.0-2.module_el8.5.0+2625+ec418553 | 4.3.0-2.module_el8.5.0+2625+ec418553 |
| AlmaLinux:8 | rubygem-bson-doc | before 4.3.0-2.module_el8.5.0+2625+ec418553 | 4.3.0-2.module_el8.5.0+2625+ec418553 |
| AlmaLinux:8 | rubygem-bson-doc | before 4.3.0-2.module_el8.5.0+259+8cec6917 | 4.3.0-2.module_el8.5.0+259+8cec6917 |
| AlmaLinux:8 | rubygem-mongo | before 2.5.1-2.module_el8.5.0+2625+ec418553 | 2.5.1-2.module_el8.5.0+2625+ec418553 |
| AlmaLinux:8 | rubygem-mongo | before 2.5.1-2.module_el8.5.0+259+8cec6917 | 2.5.1-2.module_el8.5.0+259+8cec6917 |
| AlmaLinux:8 | rubygem-mongo-doc | before 2.5.1-2.module_el8.5.0+259+8cec6917 | 2.5.1-2.module_el8.5.0+259+8cec6917 |
| AlmaLinux:8 | rubygem-mongo-doc | before 2.5.1-2.module_el8.5.0+2625+ec418553 | 2.5.1-2.module_el8.5.0+2625+ec418553 |
| AlmaLinux:8 | rubygem-mysql2 | before 0.4.10-4.module_el8.5.0+259+8cec6917 | 0.4.10-4.module_el8.5.0+259+8cec6917 |
| AlmaLinux:8 | rubygem-mysql2 | before 0.4.10-4.module_el8.5.0+2625+ec418553 | 0.4.10-4.module_el8.5.0+2625+ec418553 |
| AlmaLinux:8 | rubygem-mysql2-doc | before 0.4.10-4.module_el8.5.0+2625+ec418553 | 0.4.10-4.module_el8.5.0+2625+ec418553 |
| AlmaLinux:8 | rubygem-mysql2-doc | before 0.4.10-4.module_el8.5.0+259+8cec6917 | 0.4.10-4.module_el8.5.0+259+8cec6917 |
| AlmaLinux:8 | rubygem-pg | before 1.0.0-2.module_el8.5.0+259+8cec6917 | 1.0.0-2.module_el8.5.0+259+8cec6917 |
| AlmaLinux:8 | rubygem-pg | before 1.0.0-2.module_el8.5.0+2625+ec418553 | 1.0.0-2.module_el8.5.0+2625+ec418553 |
| AlmaLinux:8 | rubygem-pg-doc | before 1.0.0-2.module_el8.5.0+2625+ec418553 | 1.0.0-2.module_el8.5.0+2625+ec418553 |
| AlmaLinux:8 | rubygem-pg-doc | before 1.0.0-2.module_el8.5.0+259+8cec6917 | 1.0.0-2.module_el8.5.0+259+8cec6917 |
| Alpine:v3.6 | ruby | before 2.4.6-r0 | 2.4.6-r0 |
| Alpine:v3.8 | ruby | before 2.5.5-r0 | 2.5.5-r0 |
| Debian:12 | jruby | before 9.1.17.0-3 | 9.1.17.0-3 |
| Debian:12 | rubygems | before 3.2.0~rc.1-1 | 3.2.0~rc.1-1 |
+96
Same product
rubygems: all recordsOther highest-scoring records for the same primary product.
- CVE-2017-0903RubyGems versions between 2.0.0 and 2.6.13 are vulnerable to a possible remote code execution vulnerability.44Plan
- CVE-2017-0899RubyGems version 2.6.12 and earlier is vulnerable to maliciously crafted gem specifications that include terminal escape characters.42Plan
- CVE-2018-1000076RubyGems 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 series40Plan
- CVE-2017-0901RubyGems version 2.6.12 and earlier fails to validate specification names, allowing a maliciously crafted gem to potentially overwrite any f39Monitor
- CVE-2022-36073RubyGems allows creation of users with arbitrary unverified emails35Monitor
- CVE-2017-0902RubyGems version 2.6.12 and earlier is vulnerable to a DNS hijacking vulnerability that allows a MITM attacker to force the RubyGems client 33Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| almalinux:rubygem-abrt | 0.3.0-4.module_el8.5.0+259+8cec6917 · AlmaLinux:8 | Package registry (OSV) |
| almalinux:rubygem-abrt-doc | 0.3.0-4.module_el8.5.0+259+8cec6917 · AlmaLinux:8 | Package registry (OSV) |
| almalinux:rubygem-bson | 4.3.0-2.module_el8.5.0+2625+ec418553 · AlmaLinux:8 | Package registry (OSV) |
| almalinux:rubygem-bson-doc | 4.3.0-2.module_el8.5.0+2625+ec418553 · AlmaLinux:8 | Package registry (OSV) |
| almalinux:rubygem-mongo | 2.5.1-2.module_el8.5.0+259+8cec6917 · AlmaLinux:8 | Package registry (OSV) |
| almalinux:rubygem-mongo-doc | 2.5.1-2.module_el8.5.0+2625+ec418553 · AlmaLinux:8 | Package registry (OSV) |
| almalinux:rubygem-mysql2 | 0.4.10-4.module_el8.5.0+259+8cec6917 · AlmaLinux:8 | Package registry (OSV) |
| almalinux:rubygem-mysql2-doc | 0.4.10-4.module_el8.5.0+2625+ec418553 · AlmaLinux:8 | Package registry (OSV) |
| almalinux:rubygem-pg | 1.0.0-2.module_el8.5.0+2625+ec418553 · AlmaLinux:8 | Package registry (OSV) |
| almalinux:rubygem-pg-doc | 1.0.0-2.module_el8.5.0+2625+ec418553 · AlmaLinux:8 | Package registry (OSV) |
| alpine:ruby | 2.4.6-r0 · Alpine:v3.6 | Package registry (OSV) |
| debian:jruby | 9.1.17.0-3 · Debian:12 | Package registry (OSV) |
| debian:ruby2.1 | 2.1.5-2+deb8u7 · Debian:8 | Package registry (OSV) |
| debian:ruby2.3 | 2.3.3-1+deb9u6 · Debian:9 | Package registry (OSV) |
| debian:rubygems | 3.2.0~rc.1-1 · Debian:12 | Package registry (OSV) |
| opensuse:ruby-bundled-gems-rpmhelper | 0.0.2-lp151.2.1 · openSUSE:Leap 15.0 | Package registry (OSV) |
| opensuse:ruby2.5 | 2.5.5-lp151.4.3.1 · openSUSE:Leap 15.0 | Package registry (OSV) |
| red hat:rh-ruby25-ruby | 0:2.5.5-7.el7 · Red Hat:rhel_software_collections:3::el7 | Package registry (OSV) |
| red hat:rh-ruby25-ruby-debuginfo | 0:2.5.5-7.el7 · Red Hat:rhel_software_collections:3::el7 | Package registry (OSV) |
| red hat:rh-ruby25-ruby-devel | 0:2.5.5-7.el7 · Red Hat:rhel_software_collections:3::el7 | Package registry (OSV) |
| red hat:rh-ruby25-ruby-doc | 0:2.5.5-7.el7 · Red Hat:rhel_software_collections:3::el7 | Package registry (OSV) |
| red hat:rh-ruby25-ruby-irb | 0:2.5.5-7.el7 · Red Hat:rhel_software_collections:3::el7 | Package registry (OSV) |
| red hat:rh-ruby25-ruby-libs | 0:2.5.5-7.el7 · Red Hat:rhel_software_collections:3::el7 | Package registry (OSV) |
| red hat:rh-ruby25-rubygem-bigdecimal | 0:1.3.4-7.el7 · Red Hat:rhel_software_collections:3::el7 | Package registry (OSV) |
| red hat:rh-ruby25-rubygem-did_you_mean | 0:1.2.0-7.el7 · Red Hat:rhel_software_collections:3::el7 | Package registry (OSV) |
| red hat:rh-ruby25-rubygem-io-console | 0:0.4.6-7.el7 · Red Hat:rhel_software_collections:3::el7 | Package registry (OSV) |
| red hat:rh-ruby25-rubygem-json | 0:2.1.0-7.el7 · Red Hat:rhel_software_collections:3::el7 | Package registry (OSV) |
| red hat:rh-ruby25-rubygem-minitest | 0:5.10.3-7.el7 · Red Hat:rhel_software_collections:3::el7 | Package registry (OSV) |
| red hat:rh-ruby25-rubygem-net-telnet | 0:0.1.1-7.el7 · Red Hat:rhel_software_collections:3::el7 | Package registry (OSV) |
| rocky linux:rubygem-abrt | 0:0.3.0-4.module+el8.5.0+738+032c9c02 · Rocky Linux:8 | Package registry (OSV) |
+8
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
- RubyGemsHackerOne · disclosure only (VDP) · rubygems/rubygems
- RubyGemsHackerOne · disclosure only (VDP)
The product’s vendor appears in a public program. Matched by name; verify the scope text in the program.
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- A user must open a link or visit a page.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- high · data or configuration can be modified
- Availability
- high · the service can be disrupted
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
CWE-94 · Improper Control of Generation of Code ('Code Injection')CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- lists.opensuse.org/opensuse-security-announce/2019-07/msg00036.html
- access.redhat.com/errata/RHSA-2019:1972
- hackerone.com/reports/328571
- lists.debian.org/debian-lts-announce/2020/08/msg00027.html
Vendor advisories and official records. Exploit/PoC links are deliberately left out.