CVE-2018-17567
Jekyll allows attackers to access arbitrary files by specifying a symlink
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2018-17567- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:P/I:N/A:N - Weakness
- CWE-59
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2018-17567- Updated
- 2026-11-02
EUVDEUVD-2018-0436 No score
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.
- Record
EUVD-2018-0436- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-4xjh-m3qx-49wc
Jekyll allows attackers to access arbitrary files by specifying a symlink
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.
- Record
GHSA-4xjh-m3qx-49wc- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-59
- Updated
- 2026-11-02
OSV
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.
- Record
CVE-2018-17567- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
OSVDEBIAN-CVE-2018-17567
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.
- Record
DEBIAN-CVE-2018-17567- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
OSVGHSA-4xjh-m3qx-49wc
Jekyll allows attackers to access arbitrary files by specifying a symlink
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.
- Record
GHSA-4xjh-m3qx-49wc- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-59
- Updated
- 2026-11-02
OSVUBUNTU-CVE-2018-17567
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.
- Record
UBUNTU-CVE-2018-17567- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
jekyllRubyGems |
before 3.6.3 | 3.6.3 |
jekyllRubyGems |
3.7.0 up to 3.7.4 | 3.7.4 |
jekyllRubyGems |
3.8.0 up to 3.8.4 | 3.8.4 |
jekyllDebian:12 |
before 3.8.3+dfsg-3.1 | 3.8.3+dfsg-3.1 |
jekyllDebian:13 |
before 3.8.3+dfsg-3.1 | 3.8.3+dfsg-3.1 |
jekyllDebian:14 |
before 3.8.3+dfsg-3.1 | 3.8.3+dfsg-3.1 |
jekyllDebian:8 |
before 2.2.0+dfsg-2+deb8u1, plus listed versions 2.2.0+dfsg-2 |
2.2.0+dfsg-2+deb8u1 |
jekyllRubyGems |
before 3.6.3, plus listed versions 0.1.20.1.30.1.40.1.50.1.6 Show 45 moreShow less0.10.00.11.00.11.20.12.00.12.10.2.00.2.10.3.00.4.10.5.10.5.30.5.40.5.50.5.60.5.70.6.00.6.10.6.20.7.00.8.00.9.01.0.01.0.0.beta11.0.0.beta21.0.0.beta31.0.0.beta41.0.0.rc11.0.11.0.21.0.31.0.41.1.11.1.21.2.01.2.11.3.01.3.0.rc1.3.11.4.01.4.11.4.21.4.31.5.01.5.12.0.0 |
3.6.3 |
jekyllRubyGems |
3.7.0 up to 3.7.4, plus listed versions 3.7.23.7.3 |
3.7.4 |
jekyllRubyGems |
3.8.0 up to 3.8.4, plus listed versions 3.8.13.8.23.8.3 |
3.8.4 |
jekyllUbuntu:16.04:LTS |
All versions, plus listed versions 2.2.0+dfsg-23.0.1+dfsg-1 |
None known |
jekyllUbuntu:18.04:LTS |
All versions, plus listed versions 3.1.6+dfsg-3 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2018-17567 is a high vulnerability (CVSS 7.5) in Jekyllrb Jekyll, published September 28, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.19%, the 82nd percentile. Fixed in jekyll 3.6.3.
References
github.com/jekyll/jekyll/pull/7224
jekyllrb.com/news/2018/09/19/security-fixes-for-3-6-3-7-3-8
lists.apache.org/thread.html/71da391f584b2fb301d2df0e491b279d87287e2fb4b11309f04ad984%40%3Ccommits.accumulo.apache.org%3E
nvd.nist.gov/vuln/detail/CVE-2018-17567
Left out here: 64 versions. The JSON record has them.