CVE-2015-10005

markdown-it html_re.js redos

3.5 LowFix available

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.

Attack profile

How easy it is to exploit

Attack vector: Adjacent network
Complexity: Low
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: None
Integrity: None
Availability: Low

Exploit likelihood

1.03%Up 0.1 points since Dec 27, 2022

What each source reports

CVE List Score used 3.5

markdown-it html_re.js redos

Record: CVE-2015-10005
CVSS 3.1: 3.5 LowCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
CVSS 3.0: 3.5 LowCVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Weakness: CWE-1333
Updated: 2026-11-02

EUVDEUVD-2022-7658 3.5

Record: EUVD-2022-7658
CVSS 3.1: 3.5 LowCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Updated: 2026-11-02

GitHub AdvisoriesGHSA-j5p7-jf4q-742q 7.5

markdown-it vulnerable to Inefficient Regular Expression Complexity

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.

Record: GHSA-j5p7-jf4q-742q
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-1333
Updated: 2026-11-02

NVD 3.5

Record: CVE-2015-10005
CVSS 3.1: 3.5 LowCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-1333
Updated: 2026-11-02

OSVGHSA-j5p7-jf4q-742q 7.5

markdown-it vulnerable to Inefficient Regular Expression Complexity

Record: GHSA-j5p7-jf4q-742q
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-1333
Updated: 2026-11-02

OSVUBUNTU-CVE-2015-10005 3.5

Record: UBUNTU-CVE-2015-10005
CVSS 3.1: 3.5 LowCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`markdown-it` npm	before 3.0.0	3.0.0
`node-markdown-it` Ubuntu:22.04:LTS	All versions, plus listed versions 10.0.0+dfsg-210.0.0+dfsg-310.0.0+dfsg-3.110.0.0+dfsg-410.0.0+dfsg-510.0.0+dfsg-6	None known
`node-markdown-it` Ubuntu:24.04:LTS	All versions, plus listed versions 22.2.3+dfsg+~12.2.3-2	None known
`node-markdown-it` Ubuntu:25.10	All versions, plus listed versions 22.2.3+dfsg+~12.2.3-2	None known
`node-markdown-it` Ubuntu:26.10	All versions, plus listed versions 22.2.3+dfsg+~12.2.3-422.2.3+dfsg+~12.2.3-5	None known
`node-markdown-it` Ubuntu:26.04:LTS	All versions, plus listed versions 22.2.3+dfsg+~12.2.3-222.2.3+dfsg+~12.2.3-4	None known

History

History
Recorded	Changed	Sources
Nov 2, 2026	aliases, products, published	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2015-10005 is a low vulnerability (CVSS 3.5) in Markdown-it, published December 27, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.03%, the 63rd percentile. Fixed in markdown-it 3.0.0.