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CVE-2019-8323· NVD / CVE Program· CNA mitre

An issue was discovered in RubyGems 2.6 and later through 3.0.2.

Noroxi assessment

Priority: Monitor (action score 31/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 3.2% (FIRST EPSS); higher than 88.2% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: ruby (Alpine:v3.6) 2.4.6-r0; ruby (Alpine:v3.8) 2.5.5-r0; jruby (Debian:12) 9.1.17.0-3.

Low priority for now. Upgrade to ruby (Alpine:v3.6) 2.4.6-r0; ruby (Alpine:v3.8) 2.5.5-r0; jruby (Debian:12) 9.1.17.0-3 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

An issue was discovered in RubyGems 2.6 and later through 3.0.2. Gem::GemcutterUtilities#with_response may output the API response to stdout as it is. Therefore, if the API side modifies the response, escape sequence injection may occur.

HighCVSS 7.5 · v3.1—No exploit Fix available
Published
Jun 17, 2019
Updated
Jun 16, 2026
EPSS
3.2% · 88th percentile

Report tools

JSON

Action score

31

Monitor

Low priority for now.

CVSS
30 / 40 · 7.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 3.2%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

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When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
rubygemsrubygems
debiandebian linux
opensuseleap

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
  • 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.

EcosystemPackageAffected rangeFix
Alpine:v3.6rubybefore 2.4.6-r02.4.6-r0
Alpine:v3.8rubybefore 2.5.5-r02.5.5-r0
Debian:12jrubybefore 9.1.17.0-39.1.17.0-3
Debian:12rubygemsbefore 3.2.0~rc.1-13.2.0~rc.1-1
Debian:8jrubybefore 1.5.6-9+deb8u11.5.6-9+deb8u1
Debian:8ruby2.1before 2.1.5-2+deb8u72.1.5-2+deb8u7
Debian:9jrubybefore 1.7.26-1+deb9u21.7.26-1+deb9u2
Debian:9ruby2.3before 2.3.3-1+deb9u62.3.3-1+deb9u6
openSUSE:Leap 15.0ruby-bundled-gems-rpmhelperbefore 0.0.2-lp151.2.10.0.2-lp151.2.1
openSUSE:Leap 15.0ruby2.5before 2.5.5-lp151.4.3.12.5.5-lp151.4.3.1
Red Hat:cloudforms_managementengine:5.10::el7cfmebefore 0:5.10.5.1-1.el7cf0:5.10.5.1-1.el7cf
Red Hat:cloudforms_managementengine:5.10::el7cfme-amazon-smartstatebefore 0:5.10.5.1-1.el7cf0:5.10.5.1-1.el7cf
Red Hat:cloudforms_managementengine:5.10::el7cfme-appliancebefore 0:5.10.5.1-1.el7cf0:5.10.5.1-1.el7cf
Red Hat:cloudforms_managementengine:5.10::el7cfme-appliance-commonbefore 0:5.10.5.1-1.el7cf0:5.10.5.1-1.el7cf
Red Hat:cloudforms_managementengine:5.10::el7cfme-appliance-debuginfobefore 0:5.10.5.1-1.el7cf0:5.10.5.1-1.el7cf
Red Hat:cloudforms_managementengine:5.10::el7cfme-appliance-toolsbefore 0:5.10.5.1-1.el7cf0:5.10.5.1-1.el7cf
Red Hat:cloudforms_managementengine:5.10::el7cfme-debuginfobefore 0:5.10.5.1-1.el7cf0:5.10.5.1-1.el7cf
Red Hat:cloudforms_managementengine:5.10::el7cfme-gemsetbefore 0:5.10.5.1-1.el7cf0:5.10.5.1-1.el7cf
Red Hat:cloudforms_managementengine:5.10::el7cfme-gemset-debuginfobefore 0:5.10.5.1-1.el7cf0:5.10.5.1-1.el7cf
Red Hat:cloudforms_managementengine:5.10::el7rubybefore 0:2.4.6-91.el7cf0:2.4.6-91.el7cf
Red Hat:cloudforms_managementengine:5.10::el7ruby-debuginfobefore 0:2.4.6-91.el7cf0:2.4.6-91.el7cf
Red Hat:cloudforms_managementengine:5.10::el7ruby-develbefore 0:2.4.6-91.el7cf0:2.4.6-91.el7cf
Red Hat:cloudforms_managementengine:5.10::el7ruby-docbefore 0:2.4.6-91.el7cf0:2.4.6-91.el7cf
Red Hat:cloudforms_managementengine:5.10::el7ruby-irbbefore 0:2.4.6-91.el7cf0:2.4.6-91.el7cf

+96

Same product

rubygems: all records

Other 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 series
    40Plan

Published before and after this one in the same product

  • ← EarlierCVE-2019-8321Jun 17, 2019 · An issue was discovered in RubyGems 2.6 and later through 3.0.2.
    31Monitor
  • ← EarlierCVE-2019-8322Jun 17, 2019 · An issue was discovered in RubyGems 2.6 and later through 3.0.2.
    31Monitor
  • Later →CVE-2022-36073Sep 7, 2022 · RubyGems allows creation of users with arbitrary unverified emails
    35Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
alpine:ruby2.4.6-r0 · Alpine:v3.6Package registry (OSV)
debian:jruby9.1.17.0-3 · Debian:12Package registry (OSV)
debian:ruby2.12.1.5-2+deb8u7 · Debian:8Package registry (OSV)
debian:ruby2.32.3.3-1+deb9u6 · Debian:9Package registry (OSV)
debian:rubygems3.2.0~rc.1-1 · Debian:12Package registry (OSV)
opensuse:ruby-bundled-gems-rpmhelper0.0.2-lp151.2.1 · openSUSE:Leap 15.0Package registry (OSV)
opensuse:ruby2.52.5.5-lp151.4.3.1 · openSUSE:Leap 15.0Package registry (OSV)
red hat:ruby0:2.5.5-105.module+el8.1.0+3656+f80bfa1d · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:ruby-debuginfo0:2.5.5-105.module+el8.1.0+3656+f80bfa1d · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:ruby-debugsource0:2.5.5-105.module+el8.1.0+3656+f80bfa1d · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:ruby-devel0:2.5.5-105.module+el8.1.0+3656+f80bfa1d · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:ruby-doc0:2.5.5-105.module+el8.1.0+3656+f80bfa1d · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:ruby-irb0:2.5.5-105.module+el8.1.0+3656+f80bfa1d · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:ruby-libs0:2.5.5-105.module+el8.1.0+3656+f80bfa1d · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:ruby-libs-debuginfo0:2.5.5-105.module+el8.1.0+3656+f80bfa1d · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:rubygem-abrt0:0.3.0-4.module+el8.1.0+3656+f80bfa1d · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:rubygem-abrt-doc0:0.3.0-4.module+el8.1.0+3656+f80bfa1d · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:rubygem-bigdecimal0:1.3.4-105.module+el8.1.0+3656+f80bfa1d · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:rubygem-bigdecimal-debuginfo0:1.3.4-105.module+el8.1.0+3656+f80bfa1d · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
RubyGems:rubygems-update2.7.9Package registry (OSV)
RubyGems:rubygems-update3.0.2Package registry (OSV)
suse:ruby2.52.5.5-4.3.1 · SUSE:Linux Enterprise Module for Basesystem 15Package registry (OSV)

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.

EPSS, last 120 days

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 researchers

Finders, 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

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.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
high · data or configuration can be modified
Availability
none
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
High
Availability impact
None

Weakness class (CWE)

CWE-74 · Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

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.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (2 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records