Description
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in markdown-it allows Cross-Site Scripting (XSS). This vulnerability is associated with program files lib/renderer.mjs.
This issue affects markdown-it: 14.1.0. NOTE: the Supplier does not consider this issue to be a vulnerability.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| markdown-it | markdown-it | 14.1.0 | — |
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 | node-markdown-it | No fix yet | — |
| Debian 13 | node-markdown-it | No fix yet | — |
| Debian 12 | node-markdown-it | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | node-markdown-it | No fix yet | — |
| Ubuntu 26.04 LTS | node-markdown-it | No fix yet | — |
| Ubuntu 25.10 | node-markdown-it | No fix yet | — |
| Ubuntu 24.04 LTS | node-markdown-it | No fix yet | — |
| Ubuntu 22.04 LTS | node-markdown-it | No fix yet | — |
References
- https://fluidattacks.com/advisories/fito third-party-advisory
- https://github.com/markdown-it/markdown-it product