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Fencer Vulns
high 7.5

CVE-2019-8322 json

RubyGems Escape sequence injection vulnerability in gem owner

published 2019-06-17 7 y ago modified 2026-06-17 4 mo ago also GHSA-mh37-8c3g-3fgc , EUVD-2019-0550

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.3%
EPSS 3.3% chance of exploitation in 30 days, percentile 88%
public exploits
0
none known

Summary

An issue was discovered in RubyGems 2.6 and later through 3.0.2. The gem owner command outputs the contents of the API response directly to stdout. Therefore, if the response is crafted, escape sequence injection may occur.

Patch / fix

  • rubygems rubygems-update 2.7.9, 3.0.2
  • jruby Debian 14, Debian 13, Debian 12 9.1.17.0-3
  • rubygems Debian 14, Debian 13, Debian 12 3.2.0~rc.1-1

debian advisories DEBIAN-CVE-2019-8322

  • ruby2.0 Ubuntu 14.04 LTS 2.0.0.484-1ubuntu2.13
  • ruby2.3 Ubuntu 16.04 LTS 2.3.1-2~16.04.12
  • ruby2.5 Ubuntu 18.04 LTS 2.5.1-1ubuntu1.2
  • ruby1.9.1 Ubuntu 14.04 LTS 1.9.3.484-2ubuntu1.14
  • jruby Ubuntu Pro 14.04 LTS 1.5.6-9+deb8u2build0.14.04.1~esm2

ubuntu advisories UBUNTU-CVE-2019-8322

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • rh-ruby24-ruby RHEL 3 SOFTWARE_COLLECTIONS 2.4.6-92.el6
  • rh-ruby24-ruby RHEL 3 SOFTWARE_COLLECTIONS 2.4.6-92.el7
  • rh-ruby24-ruby-irb RHEL 3 SOFTWARE_COLLECTIONS 2.4.6-92.el6
  • rh-ruby24-ruby-irb RHEL 3 SOFTWARE_COLLECTIONS 2.4.6-92.el7
  • rh-ruby24-rubygems RHEL 3 SOFTWARE_COLLECTIONS 2.6.14.4-92.el6
  • rh-ruby24-rubygems RHEL 3 SOFTWARE_COLLECTIONS 2.6.14.4-92.el7
  • rh-ruby24-ruby-libs RHEL 3 SOFTWARE_COLLECTIONS 2.4.6-92.el6
  • rh-ruby24-ruby-libs RHEL 3 SOFTWARE_COLLECTIONS 2.4.6-92.el7

red hat advisories RHSA-2020:2769RHSA-2019:1150RHSA-2019:1148RHSA-2019:1429RHBA-2019:3384RHSA-2019:1235

  • ruby2.1 SLES for SAP 12 SP5, SLES for SAP 12 SP4, SLES for SAP 12 SP3 +14 more 2.1.9-19.3.2
  • yast2-ruby-bindings SLES for SAP 12 SP2, SLES 12 SP2-LTSS, SLES 12 SP2-BCL +1 more 3.1.53-9.8.1
  • ruby2.5 SLE Module for Basesystem 15 SP1, SLE Module for Basesystem 15 2.5.5-4.3.1

suse advisories SUSE-SU-2020:1570-1SUSE-SU-2019:1804-1

  • ruby2.5 openSUSE Leap 15.1, openSUSE Leap 15.0 2.5.5-lp151.4.3.1
  • ruby-bundled-gems-rpmhelper openSUSE Leap 15.1, openSUSE Leap 15.0 0.0.2-lp151.2.1

opensuse advisories openSUSE-SU-2019:1771-1

  • rubygem-pg AlmaLinux 8 1.0.0-2.module_el8.5.0+2625+ec418553
  • rubygem-pg AlmaLinux 8 1.0.0-2.module_el8.5.0+259+8cec6917
  • rubygem-abrt AlmaLinux 8 0.3.0-4.module_el8.5.0+2625+ec418553
  • rubygem-abrt AlmaLinux 8 0.3.0-4.module_el8.5.0+259+8cec6917
  • rubygem-abrt AlmaLinux 8 0.3.0-4.module_el8.5.0+2623+08a8ba32
  • rubygem-bson AlmaLinux 8 4.3.0-2.module_el8.5.0+2625+ec418553
  • rubygem-bson AlmaLinux 8 4.3.0-2.module_el8.5.0+259+8cec6917
  • rubygem-mongo AlmaLinux 8 2.5.1-2.module_el8.5.0+259+8cec6917

almalinux advisories ALBA-2019:3384

  • ruby Alpine 3.7, Alpine 3.6 2.4.6-r0
  • ruby Alpine 3.9, Alpine 3.8 2.5.5-r0

alpine advisories ALPINE-CVE-2019-8322

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2019-8322 updated cvss 5.3

rubygems: Escape sequence injection vulnerability in gem owner

  • Red Hat Enterprise Linux 6 rubygems
    affected: no fix planned “Will not fix”
  • Red Hat Software Collections rh-ruby23-ruby, rh-ruby23-ruby-irb, rh-ruby23-rubygems, rh-ruby23-ruby-libs, rh-ruby23-ruby-tcltk, rh-ruby23-rubygem-json, +10 more
    affected: no fix available “Fix deferred”
  • Red Hat CloudForms Management Engine 5.10 ruby 2.4.6-91.el7cf, cfme 5.10.5.1-1.el7cf, ruby-irb 2.4.6-91.el7cf, ruby-libs 2.4.6-91.el7cf, rubygems 2.6.14.4-91.el7cf, rubygem-rdoc 5.0.0-91.el7cf, +16 more
    fixed: vendor fix RHSA-2019:1429
  • Red Hat Enterprise Linux AppStream (v. 8) ruby 2.5.5-105.module+el8.1.0+3656+f80bfa1d, ruby-irb 2.5.5-105.module+el8.1.0+3656+f80bfa1d, rubygem-pg 1.0.0-2.module+el8.1.0+3656+f80bfa1d, ruby-libs 2.5.5-105.module+el8.1.0+3656+f80bfa1d, rubygem-abrt 0.3.0-4.module+el8.1.0+3656+f80bfa1d, rubygem-bson 4.3.0-2.module+el8.1.0+3656+f80bfa1d, +17 more
    fixed: vendor fix RHBA-2019:3384
  • Red Hat Enterprise Linux Client (v. 7) ruby 2.0.0.648-35.el7_6, rubygems 2.0.14.1-35.el7_6, ruby-irb 2.0.0.648-35.el7_6, rubygem-json 1.7.7-35.el7_6, rubygem-rdoc 4.0.0-35.el7_6, ruby-libs 2.0.0.648-35.el7_6, +3 more Red Hat Enterprise Linux Client Optional (v. 7) rubygem-rake 0.9.6-35.el7_6, ruby-tcltk 2.0.0.648-35.el7_6, rubygem-minitest 4.3.2-35.el7_6 Red Hat Enterprise Linux ComputeNode (v. 7) ruby 2.0.0.648-35.el7_6, rubygems 2.0.14.1-35.el7_6, ruby-irb 2.0.0.648-35.el7_6, rubygem-json 1.7.7-35.el7_6, rubygem-rdoc 4.0.0-35.el7_6, ruby-libs 2.0.0.648-35.el7_6, +3 more Red Hat Enterprise Linux ComputeNode Optional (v. 7) rubygem-rake 0.9.6-35.el7_6, ruby-tcltk 2.0.0.648-35.el7_6, rubygem-minitest 4.3.2-35.el7_6 Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) ruby 2.0.0.648-35.el7_6, rubygems 2.0.14.1-35.el7_6, ruby-irb 2.0.0.648-35.el7_6, rubygem-json 1.7.7-35.el7_6, rubygem-rdoc 4.0.0-35.el7_6, ruby-libs 2.0.0.648-35.el7_6, +3 more Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) rubygem-rake 0.9.6-35.el7_6, ruby-tcltk 2.0.0.648-35.el7_6, rubygem-minitest 4.3.2-35.el7_6
    +1 more products
    Red Hat Enterprise Linux Server (v. 7) ruby 2.0.0.648-35.el7_6, rubygems 2.0.14.1-35.el7_6, ruby-irb 2.0.0.648-35.el7_6, rubygem-json 1.7.7-35.el7_6, rubygem-rdoc 4.0.0-35.el7_6, ruby-libs 2.0.0.648-35.el7_6, +3 more
    fixed: vendor fix RHSA-2019:1235
  • Red Hat Enterprise Linux Server AUS (v. 7.4) ruby 2.0.0.648-37.el7_4, rubygems 2.0.14.1-37.el7_4, ruby-irb 2.0.0.648-37.el7_4, rubygem-json 1.7.7-37.el7_4, rubygem-rdoc 4.0.0-37.el7_4, ruby-libs 2.0.0.648-37.el7_4, +3 more Red Hat Enterprise Linux Server E4S (v. 7.4) ruby 2.0.0.648-37.el7_4, rubygems 2.0.14.1-37.el7_4, ruby-irb 2.0.0.648-37.el7_4, rubygem-json 1.7.7-37.el7_4, rubygem-rdoc 4.0.0-37.el7_4, ruby-libs 2.0.0.648-37.el7_4, +3 more
    fixed: vendor fix RHSA-2020:2769
  • Red Hat Enterprise Linux Server Optional (v. 7) rubygem-rake 0.9.6-35.el7_6, ruby-tcltk 2.0.0.648-35.el7_6, rubygem-minitest 4.3.2-35.el7_6
    fixed: vendor fix RHSA-2019:1235
  • Red Hat Enterprise Linux Server Optional AUS (v. 7.4) rubygem-rake 0.9.6-37.el7_4, ruby-tcltk 2.0.0.648-37.el7_4, rubygem-minitest 4.3.2-37.el7_4 Red Hat Enterprise Linux Server Optional E4S (v. 7.4) rubygem-rake 0.9.6-37.el7_4, ruby-tcltk 2.0.0.648-37.el7_4, rubygem-minitest 4.3.2-37.el7_4 Red Hat Enterprise Linux Server Optional TUS (v. 7.4) rubygem-rake 0.9.6-37.el7_4, ruby-tcltk 2.0.0.648-37.el7_4, rubygem-minitest 4.3.2-37.el7_4 Red Hat Enterprise Linux Server TUS (v. 7.4) ruby 2.0.0.648-37.el7_4, rubygems 2.0.14.1-37.el7_4, ruby-irb 2.0.0.648-37.el7_4, rubygem-json 1.7.7-37.el7_4, rubygem-rdoc 4.0.0-37.el7_4, ruby-libs 2.0.0.648-37.el7_4, +3 more
    fixed: vendor fix RHSA-2020:2769
show 3 more
  • Red Hat Enterprise Linux Workstation (v. 7) ruby 2.0.0.648-35.el7_6, rubygems 2.0.14.1-35.el7_6, ruby-irb 2.0.0.648-35.el7_6, rubygem-json 1.7.7-35.el7_6, rubygem-rdoc 4.0.0-35.el7_6, ruby-libs 2.0.0.648-35.el7_6, +3 more Red Hat Enterprise Linux Workstation Optional (v. 7) rubygem-rake 0.9.6-35.el7_6, ruby-tcltk 2.0.0.648-35.el7_6, rubygem-minitest 4.3.2-35.el7_6
    fixed: vendor fix RHSA-2019:1235
  • Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 6) rh-ruby24-ruby 2.4.6-92.el6, rh-ruby24-ruby-irb 2.4.6-92.el6, rh-ruby24-ruby-libs 2.4.6-92.el6, rh-ruby24-rubygems 2.6.14.4-92.el6, rh-ruby24-rubygem-json 2.0.4-92.el6, rh-ruby24-rubygem-rdoc 5.0.0-92.el6, +11 more Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) rh-ruby25-ruby 2.5.5-7.el7, rh-ruby24-ruby 2.4.6-92.el7, rh-ruby25-ruby-irb 2.5.5-7.el7, rh-ruby24-ruby-irb 2.4.6-92.el7, rh-ruby25-ruby-libs 2.5.5-7.el7, rh-ruby24-ruby-libs 2.4.6-92.el7, +28 more Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.4) rh-ruby25-ruby 2.5.5-7.el7, rh-ruby24-ruby 2.4.6-92.el7, rh-ruby25-ruby-irb 2.5.5-7.el7, rh-ruby24-ruby-irb 2.4.6-92.el7, rh-ruby25-ruby-libs 2.5.5-7.el7, rh-ruby24-ruby-libs 2.4.6-92.el7, +28 more Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.5) rh-ruby25-ruby 2.5.5-7.el7, rh-ruby24-ruby 2.4.6-92.el7, rh-ruby25-ruby-irb 2.5.5-7.el7, rh-ruby24-ruby-irb 2.4.6-92.el7, rh-ruby25-ruby-libs 2.5.5-7.el7, rh-ruby24-ruby-libs 2.4.6-92.el7, +28 more Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.6) rh-ruby25-ruby 2.5.5-7.el7, rh-ruby24-ruby 2.4.6-92.el7, rh-ruby25-ruby-irb 2.5.5-7.el7, rh-ruby24-ruby-irb 2.4.6-92.el7, rh-ruby25-ruby-libs 2.5.5-7.el7, rh-ruby24-ruby-libs 2.4.6-92.el7, +28 more Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 6) rh-ruby24-ruby 2.4.6-92.el6, rh-ruby24-ruby-irb 2.4.6-92.el6, rh-ruby24-ruby-libs 2.4.6-92.el6, rh-ruby24-rubygems 2.6.14.4-92.el6, rh-ruby24-rubygem-json 2.0.4-92.el6, rh-ruby24-rubygem-rdoc 5.0.0-92.el6, +11 more
    +1 more products
    Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) rh-ruby25-ruby 2.5.5-7.el7, rh-ruby24-ruby 2.4.6-92.el7, rh-ruby25-ruby-irb 2.5.5-7.el7, rh-ruby24-ruby-irb 2.4.6-92.el7, rh-ruby25-ruby-libs 2.5.5-7.el7, rh-ruby24-ruby-libs 2.4.6-92.el7, +28 more
    fixed: vendor fix RHSA-2019:1150
  • Red Hat Software Collections rh-ruby26-ruby, rh-ruby26-rubygems, rh-ruby26-ruby-libs, rh-ruby26-rubygem-irb, rh-ruby26-rubygem-json, rh-ruby26-rubygem-rake, +12 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

3.28% chance of exploitation in the next 30 days, higher than 88% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:P/A:N
GitHub 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected packages

ecosystem package affected fixed in
rubygems rubygems-update
>=2.6.0, <2.7.9
>=3.0.0, <3.0.2
2.7.9
3.0.2

Classification

Weakness
  • CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.