CVE-2017-0904

mediumpriority · track · 33EPSS 0.024 · 84 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

2.42% (84th) EPSS

CVSS 6.8 · medium

Is it mine?

3 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · osv

EPSS · scored 2026-10-27

The private_address_check ruby gem before 0.4.0 is vulnerable to a bypass due to use of Ruby's Resolv.getaddresses method, which is OS-dependent and should not be relied upon for security measures, such as when used to blacklist private network addresses to prevent server-side request forgery.

cvss

Technical severity, 0–10. One row per scoring source.

8.1

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.8–8.1

v2.06.8mediumAV:N/AC:M/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 8.6 · impact 6.4

v3.08.1highCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 2.2 · impact 5.9

v3.07.4highCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-755USprimaryCWE-242USCWE-242US

affected products (3)

Products and version ranges known to be affected.

jtdowney private_address_check ruby gem≤ Versions before 0.4.0enisa_euvdEU
private address check project private address check< 0.4.0nvdUScpe:2.3:a:private_address_check_project:private_address_check:*:*:*:*:*:*:*:*
RubyGems private_address_check< 0.4.0osvUSpkg:gem/private_address_check

advisories (1)

Vendor and ecosystem advisories describing this.

GHSA-hxhj-hp9m-qwc4private_address_check vulnerable to bypass of Resolv.getaddresses method2017-11-29ghsa · osvUS
The private_address_check ruby gem before 0.4.0 is vulnerable to a bypass due to use of Ruby's `Resolv.getaddresses` method, which is OS-dependent and should not be relied upon for security measures, such as when used to blacklist private network addresses to prevent server-side request forgery.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd osv NVD CVE.org MITRE

published 2017-11-13modified 2026-06-17

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references (15)

External citations — patches, advisories, analysis.

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