CVE-2017-1000047: rbenv (all current versions) is vulnerable to Directory Traversal in the specification of Ruby version resulti

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CRITICAL 9.8REMOTEMITIGATE

CVE-2017-1000047 is a critical-severity flaw (CVSS 9.8) affecting rbenv. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

rbenv (all current versions) is vulnerable to Directory Traversal in the specification of Ruby version resulting in arbitrary code execution

Why this priority

Critical severity
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	3.7% (top 10%)
CISA exploited list	No
Weakness	CWE-22
Published	2017-07-17
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: rbenv project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2017-07-17 13:18 UTCPublished CVE record published
2026-06-17 00:58 UTCUpdated Record last modified

rbenv project rbenv MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy rbenv || rpm -q rbenv || rbenv --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2017-1000047?

rbenv: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2017-1000047 being exploited?

CVE-2017-1000047 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2017-1000047 affect?

CVE-2017-1000047 affects rbenv. Severity is critical (CVSS 9.8). rbenv (all current versions) is vulnerable to Directory Traversal in the specification of Ruby version resulting in arbitrary code execution

How urgent is CVE-2017-1000047?

Priority 62/100. Critical severity; Remotely exploitable, no login, no user action

Software pages

Ruby vulnerabilities

References

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