CVE-2018-17567 json
Jekyll allows attackers to access arbitrary files by specifying a symlink
published 2018-09-28 8 y ago modified 2026-06-17 4 mo ago also GHSA-4xjh-m3qx-49wc , EUVD-2018-0436
- cvss
- 7.5
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.2%
- EPSS 2.2% chance of exploitation in 30 days, percentile 82%
- public exploits
- 0
- none known
Summary
Jekyll through 3.6.2, 3.7.x through 3.7.3, and 3.8.x through 3.8.3 allows attackers to access arbitrary files by specifying a symlink in the "include" key in the "_config.yml" file.
Patch / fix
- rubygems jekyll 3.6.3, 3.7.4, 3.8.4
- jekyll Debian 14, Debian 13, Debian 12 3.8.3+dfsg-3.1
debian advisories DEBIAN-CVE-2018-17567
- github.com/jekyll/jekyll#7224 pull request
- jekyllrb.com/news/2018/09/19/security-fixes-for-3-6-3-7-3-8/ advisory
Exploit prediction
2.19% chance of exploitation in the next 30 days, higher than 82% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:P/I:N/A:N |
| GitHub | 3.0 | 7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| rubygems | jekyll | <3.6.3 >=3.7.0, <3.7.4 >=3.8.0, <3.8.4 |
3.6.3 3.7.4 3.8.4 |
Classification
- Weakness
-
- CWE-59 Improper Link Resolution Before File Access
References
-
github.com
/jekyll/jekyll/pull/7224
web, patch, third-party-advisory
-
jekyllrb.com
/news/2018/09/19/security-fixes-for-3-6-3-7-3-8/
patch, vendor-advisory
-
lists.apache.org
/thread.html/71da391f584b2fb301d2df0e491b279d87287e2fb4b11309f04ad984%40%3Ccommits.accumulo.apache.org%3E
mailing-list
-
nvd.nist.gov
/vuln/detail/CVE-2018-17567
advisory
-
github.com
/jekyll/jekyll
package
-
github.com
/rubysec/ruby-advisory-db/blob/master/gems/jekyll/CVE-2018-17567.yml
web
-
jekyllrb.com
/news/2018/09/19/security-fixes-for-3-6-3-7-3-8
web
-
lists.apache.org
/thread.html/71da391f584b2fb301d2df0e491b279d87287e2fb4b11309f04ad984@%3Ccommits.accumulo.apache.org%3E
web
Sources
- CVE List CVE-2018-17567
- GitHub Advisory GHSA-4xjh-m3qx-49wc
- NVD CVE-2018-17567
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.