What’s Vulnerable › Vulnerabilities

CVE-2015-10005: markdown-it html_re.js redos

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-12-27 · updated 2026-06-17
• Weakness: CWE-1333

Description

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.

Affected products

• markdown-it: before 3.0.0 — fixed in 3.0.0

How to fix

Upgrade to a fixed version: markdown-it 3.0.0. Check the vendor advisory for mitigations.

References

• https://github.com/markdown-it/markdown-it/commit/89c8620157d6e38f9872811620d25138fc9d1b0d
• https://github.com/markdown-it/markdown-it/releases/tag/3.0.0
• https://vuldb.com/?ctiid.216852
• https://vuldb.com/?id.216852
• https://github.com/markdown-it/markdown-it/commit/89c8620157d6e38f9872811620d25138fc9d1b0d
• https://github.com/markdown-it/markdown-it/releases/tag/3.0.0
• https://vuldb.com/?ctiid.216852
• https://vuldb.com/?id.216852

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