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CVE-2017-0909
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…
Critical9.8EPSS 2.0%
- Published
- Updated
- Reserved
- Assigned by
- hackerone
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | Critical9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 2.0% · top 19% of all CVEs (4 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Weakness
Affected products
HackerOne · private_address_check ruby gem
- affected Versions before 0.4.1
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- RubyGemsprivate_address_checkGHSA-3v3c-r5v2-68ph (opens in a new tab)
References (2)
- https://hackerone.com/reports/288950 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/jtdowney/private_address_check/pull/3 (opens in a new tab)x_refsource_CONFIRMx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-3v3c-r5v2-68ph (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2017-0909)Record last updated .