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CVE-2018-6914
Directory traversal vulnerability in the Dir.mktmpdir method in the tmpdir library in Ruby before 2.2.10, 2.3.x before 2.3.7, 2.4.x before…
- 7.5HighCVSS base score
- 10.2%Exploitation in 30 daysEPSS · top 4.3% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
Directory traversal vulnerability in the Dir.mktmpdir method in the tmpdir library in Ruby before 2.2.10, 2.3.x before 2.3.7, 2.4.x before 2.4.4, 2.5.x before 2.5.1, and 2.6.0-preview1 might allow attackers to create arbitrary directories or files via a .. (dot dot) in the prefix argument.
Timeline
ID reserved
By mitre
- 50 days later
· 50 days later
Published
- 6 years later
· 6 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | High7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
- EPSS (exploitation in 30 days)
- 10.2% · top 4.3% of all CVEs (9 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Affected products
n/a
- affected n/a
References
17
- https://www.ruby-lang.org/en/news/2018/03/28/ruby-2-5-1-released/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2018:3729 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- USN-3626-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- 1042004 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- 103686 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- RHSA-2018:3730 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- [debian-lts-announce] 20180423 [SECURITY] [DLA 1358-1] ruby1.9.1 security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- RHSA-2018:3731 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://www.ruby-lang.org/en/news/2018/03/28/ruby-2-3-7-released/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- [debian-lts-announce] 20180714 [SECURITY] [DLA 1421-1] ruby2.1 security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- https://www.ruby-lang.org/en/news/2018/03/28/unintentional-file-and-directory-creation-with-directory-traversal-cve-2018-6914/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://www.ruby-lang.org/en/news/2018/03/28/ruby-2-4-4-released/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- DSA-4259 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- https://www.ruby-lang.org/en/news/2018/03/28/ruby-2-2-10-released/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- [debian-lts-announce] 20180423 [SECURITY] [DLA 1359-1] ruby1.8 security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- openSUSE-SU-2019:1771 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- RHSA-2019:2028 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_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)
- EUVD EUVD-2018-18658 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2018-6914)Record last updated .