# CVE-2018-25110: node-marked: Marked prior to version 0.3.17 is vulnerable to a Regular Expression Denial of Service (ReDoS) attack due to catastro...

CVE-2018-25110 is fixed in node-marked on 1 platform, first by DEBIAN-CVE-2018-25110, released May 23, 2025. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2018-25110
- Priority: High
- CVSS: 7.5 (high)
- EPSS: 0.0061
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: May 23, 2025

## Description

Marked prior to version 0.3.17 is vulnerable to a Regular Expression Denial of Service (ReDoS) attack due to catastrophic backtracking in several regular expressions used for parsing HTML tags and markdown links. An attacker can exploit this vulnerability by providing specially crafted markdown input, such as deeply nested or repetitively structured brackets or tag attributes, which cause the parser to hang and lead to a Denial of Service.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | node-marked Debian 12.15 (bookworm) | 0.5.1+dfsg-1 | [DEBIAN-CVE-2018-25110](https://patchblox.com/security/data/fix/linux/debian-cve-2018-25110.md) | May 23, 2025 |
| Linux | node-marked Debian 13.5 (trixie) | 0.5.1+dfsg-1 | [DEBIAN-CVE-2018-25110](https://patchblox.com/security/data/fix/linux/debian-cve-2018-25110.md) | May 23, 2025 |
| Linux | node-marked Debian 14 | 0.5.1+dfsg-1 | [DEBIAN-CVE-2018-25110](https://patchblox.com/security/data/fix/linux/debian-cve-2018-25110.md) | May 23, 2025 |

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