CVE-2018-1000073

24

FAUCET Score

CVE-2018-1000073 describes a directory traversal vulnerability in RubyGems versions 2.2.9 and earlier, 2.3.6 and earlier, 2.4.3 and earlier, and 2.5.0 and earlier. This flaw allows an attacker to write files outside of the intended root directory when installing gems to a symlinked base directory. With a CVSS score of 7.5 (High), this vulnerability has a network attack vector, low attack complexity, and could lead to high confidentiality impact. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

Vendor	Product	Version(s)	CPE
		<= 2.2.9CPE matchmatch criteria	cpe:2.3:a:rubygems:rubygems::::::::
		<= 2.3.6CPE matchmatch criteria	cpe:2.3:a:rubygems:rubygems::::::::
		<= 2.4.3CPE matchmatch criteria	cpe:2.3:a:rubygems:rubygems::::::::
		<= 2.5.0CPE matchmatch criteria	cpe:2.3:a:rubygems:rubygems::::::::

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

Exploitability Score

3.9

Impact Score

3.6

CvssVersion

3.0

Exploit Intelligence

EPSS Score

5.00%

Probability of exploitation in next 30 days

EPSS Percentile

91.3%

Percentile rank of EPSS score among Peer Group

As of 2026-07-28

Model: v2026.06.15

This CVE's current EPSS score of 0.0500 is in the 85th percentile among its peer group of 51,553 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (32)

github_advisorypatch availablevia nvd_reference

mavenpatch availablevia ghsa

Product: org.jruby:jruby-stdlibFixed in: 9.1.16.0

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 7.4 Advanced Update SupportFixed in: ruby-0:2.0.0.648-35.el7_4

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 7.4 Telco Extended Update SupportFixed in: ruby-0:2.0.0.648-35.el7_4

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 7.4 Update Services for SAP SolutionsFixed in: ruby-0:2.0.0.648-35.el7_4

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 7.5 Extended Update SupportFixed in: ruby-0:2.0.0.648-35.el7_5

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 7.6 Extended Update SupportFixed in: ruby-0:2.0.0.648-36.el7_6

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 6Fixed in: rh-ruby23-ruby-0:2.3.8-69.el6

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 6Fixed in: rh-ruby24-ruby-0:2.4.5-91.el6

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 7Fixed in: rh-ruby23-ruby-0:2.3.8-69.el7

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 7Fixed in: rh-ruby24-ruby-0:2.4.5-91.el7

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 7Fixed in: rh-ruby25-ruby-0:2.5.3-6.el7

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.4 EUSFixed in: rh-ruby23-ruby-0:2.3.8-69.el7

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.4 EUSFixed in: rh-ruby24-ruby-0:2.4.5-91.el7

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.4 EUSFixed in: rh-ruby25-ruby-0:2.5.3-6.el7

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.5 EUSFixed in: rh-ruby23-ruby-0:2.3.8-69.el7

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.5 EUSFixed in: rh-ruby24-ruby-0:2.4.5-91.el7

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.5 EUSFixed in: rh-ruby25-ruby-0:2.5.3-6.el7

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.6 EUSFixed in: rh-ruby23-ruby-0:2.3.8-69.el7

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.6 EUSFixed in: rh-ruby25-ruby-0:2.5.3-6.el7

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.6 EUSFixed in: rh-ruby24-ruby-0:2.4.5-91.el7

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 7Fixed in: ruby-0:2.0.0.648-36.el7

rubygemspatch availablevia ghsa

Product: rubygems-updateFixed in: 2.7.6

redhatend of lifevia redhat_api

Product: Red Hat Enterprise Linux 6Fixed in: rubygems

redhatend of lifevia redhat_api

Product: Red Hat Enterprise MRG 2Fixed in: rubygems

redhatend of lifevia redhat_api

Product: Red Hat Fuse 7Fixed in: jruby

redhatend of lifevia redhat_api

Product: Red Hat JBoss A-MQ 6Fixed in: jruby-3977

redhatend of lifevia redhat_api

Product: Red Hat JBoss A-MQ 6Fixed in: jruby-4198

redhatend of lifevia redhat_api

Product: Red Hat JBoss Fuse 6Fixed in: jruby-3977

redhatend of lifevia redhat_api

Product: Red Hat JBoss Fuse 6Fixed in: jruby-4198

redhatend of lifevia redhat_api

Product: Red Hat Satellite 6Fixed in: rubygems

redhatend of lifevia redhat_api

Product: Red Hat Subscription Asset ManagerFixed in: ruby193-rubygems

Vendor Advisories (2)

rubygemsGHSA-gx69-6cp4-hxrjhigh

RubyGems Link Following vulnerability

redhatCVE-2018-1000073Moderate

rubygems: Path traversal when writing to a symlinked basedir outside of the root

References

blog.rubygems.org / 2018/02/15/2.7.6-released.html

Vendor Advisory

lists.opensuse.org / opensuse-security-announce/2019-07/msg00036.html

access.redhat.com / errata/RHSA-2018:3729

access.redhat.com / errata/RHSA-2018:3730

access.redhat.com / errata/RHSA-2018:3731

access.redhat.com / errata/RHSA-2019:2028

access.redhat.com / errata/RHSA-2020:0542

access.redhat.com / errata/RHSA-2020:0591

access.redhat.com / errata/RHSA-2020:0663

github.com / rubygems/rubygems/commit/1b931fc03b819b9a0214be3eaca844ef534175e2

PatchThird Party Advisory

lists.debian.org / debian-lts-announce/2018/08/msg00028.html

usn.ubuntu.com / 3621-1

debian.org / security/2018/dsa-4219

debian.org / security/2018/dsa-4259