CVE-2018-25110

published 2025-05-23

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…

Priority P3 37 high 7.5 CVSS 3.1

AV N AC L PR N UI N S U C N I N A H

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.

Affected

3 ranges

Vendor	Product	Version range	Fixed in
debian	node-marked	< node-marked 0.5.1+dfsg-1 (bookworm)	node-marked 0.5.1+dfsg-1 (bookworm)
marked_project	marked	< 0.3.17	0.3.17
marked_project	marked	>= 0 < 0.3.17	0.3.17

CVSS provenance

nvd v3.1 7.5 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

nvd v4.0 6.9 MEDIUM CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

osv 6.9 MEDIUM

vendor_debian 6.9 MEDIUM

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