CVE-2018-25110

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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/Checkmarx/Vulnerabilities-Proofs-of-Concept/tree/main/2018/CVE-2018-25110	Exploit Third Party Advisory
https://github.com/markedjs/marked/commit/20bfc106013ed45713a21672ad4a34df94dcd485	Patch
https://github.com/markedjs/marked/issues/1070	Issue Tracking Third Party Advisory
https://github.com/markedjs/marked/pull/1083	Issue Tracking Patch

Configurations

Configuration 1 (hide)

cpe:2.3:a:marked_project:marked:*:*:*:*:*:node.js:*:*

History

No history.

Information

Published : 2025-05-23 15:15

Updated : 2025-08-13 15:42

NVD link : CVE-2018-25110

Mitre link : CVE-2018-25110

CVE.ORG link : CVE-2018-25110

JSON object : View

Products Affected

marked_project

marked

CWE

CWE-1333

Inefficient Regular Expression Complexity

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