TI-2015-07933 Aliases CVE-2015-10005 GHSA-j5p7-jf4q-742q

markdown-it html_re.js redos

LOW 35CWE-1333Published 2022-12-27 · Updated 2025-04-11

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-1333.

Summary

A vulnerability was found in markdown-it up to 2.x. It has been classified as problematic. Affected is an unknown function of the file lib/common/html_re.js. The manipulation leads to inefficient regular expression complexity. Upgrading to version 3.0.0 is able to address this issue. The name of the patch is 89c8620157d6e38f9872811620d25138fc9d1b0d. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-216852.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.01026 63rd percentileScored 2026-11-07

Fix Fixed markdown-it (npm): 3.0.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	markdown-it	2.x	—	No fix listed	CNA
—	markdown-it (npm)	before 3.0.0	3.0.0	Patch available	GHSA-j5p7-jf4q-742q

markdown-it Vendor— Affected 2.x Fixed in — No fix listed CNA
markdown-it (npm) Vendor— Affected before 3.0.0 Fixed in 3.0.0 Patch available GHSA-j5p7-jf4q-742q

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:markdown-it_project:markdown-it::::::::	before 3.0.0	Vulnerable	Markdown-it Project

cpe:2.3:a:markdown-it_project:markdown-it:*:*:*:*:*:*:*:* Versions before 3.0.0 Vulnerable ·Markdown-it Project

Remediation

Fix · GHSA-j5p7-jf4q-742q markdown-it (npm) Fixed in 3.0.0 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2015-10005
2026-10-03 Alias added: GHSA-j5p7-jf4q-742q

References

Patch 2

Advisory 1

https://nvd.nist.gov/vuln/detail/CVE-2015-10005

Other 1

https://github.com/markdown-it/markdown-it

TI-2026-01967 Regular expression denial of service in markdown-it CVSS 4.0MEDIUM 6.9
TI-2025-07289 Markdown-it 14.1.0 - Cross-site scripting (XSS) CVSS 4.0MEDIUM 6.9
TI-2026-36244 markdown-it: Quadratic complexity DoS in smartquotes rule via replaceAt string operations CVSS 3.1MEDIUM 5.3
TI-2022-06047 Uncontrolled Resource Consumption in markdown-it CVSS 3.1MEDIUM 5.3
TI-2015-02915 markdown-it before 4.1.0 does not block data: URLs. CVSS 3.0MEDIUM 5.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences