Critical severity9.8NVD Advisory· Published Nov 16, 2017· Updated May 13, 2026

CVE-2017-0909

Description

The private_address_check ruby gem before 0.4.1 is vulnerable to a bypass due to an incomplete blacklist of common private/local network addresses used to prevent server-side request forgery.

Affected packages

Versions sourced from the GitHub Security Advisory.

Package	Affected versions	Patched versions
private_address_checkRubyGems	< 0.4.1	0.4.1

Affected products

Private Address Check Project/Private Address Check
cpe:2.3:a:private_address_check_project:private_address_check:*:*:*:*:*:ruby:*:*
Range: <0.4.1
HackerOne/private_address_check ruby gemv5
Range: Versions before 0.4.1

Patches

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

hackerone.com/reports/288950nvdIssue TrackingPatchThird Party AdvisoryWEB
github.com/advisories/GHSA-3v3c-r5v2-68phghsaADVISORY
github.com/jtdowney/private_address_check/pull/3nvdIssue TrackingThird Party AdvisoryWEB
nvd.nist.gov/vuln/detail/CVE-2017-0909ghsaADVISORY

News mentions

No linked articles in our index yet.

cvss	0.637
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000