Description
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.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | jekyll | 3.8.3+dfsg-3.1 | — |
| Debian 13 | jekyll | 3.8.3+dfsg-3.1 | — |
| Debian 12 | jekyll | 3.8.3+dfsg-3.1 | — |
| Debian 8 | jekyll | 2.2.0+dfsg-2+deb8u1 | DLA-1541-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | jekyll | No fix yet | — |
| Ubuntu 16.04 LTS | jekyll | No fix yet | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| RubyGems | jekyll | < 3.6.3 | 3.6.3 | GHSA-4xjh-m3qx-49wc |
| RubyGems | jekyll | >= 3.7.0, < 3.7.4 | 3.7.4 | GHSA-4xjh-m3qx-49wc |
| RubyGems | jekyll | >= 3.8.0, < 3.8.4 | 3.8.4 | GHSA-4xjh-m3qx-49wc |
Advisories 1
- DLA-1541-1 jekyll - security update Debian Security (DSA / DLA) · Mar 9, 2026