Markdown It Project
Products
2- 6 CVEs
- 2 CVEs
Recent CVEs
8| CVE | Vendor / Product | Sev | Risk | CVSS | EPSS | KEV | Published | Description |
|---|---|---|---|---|---|---|---|---|
| CVE-2026-48801 | Hig | 0.42 | 7.5 | 0.00 | Jul 14, 2026 | linkify-it is a links recognition library with full Unicode support. Prior to 5.0.1, LinkifyIt.prototype.match, the package's primary public API, has O(N²) algorithmic complexity for inputs containing many fuzzy links or emails because the JavaScript-level scan loop re-slices… | ||
| CVE-2026-59887 | Hig | 0.42 | 7.5 | 0.00 | Jul 8, 2026 | linkify-it is a links recognition library with full Unicode support. Prior to 5.0.2, the mailto: schema validator used by .test() and .match() can be invoked at every mailto: occurrence and scan the remaining input through src_email_name in lib/re.mjs, causing O(n^2) CPU… | ||
| CVE-2025-7969 | Med | 0.40 | 6.1 | 0.00 | Aug 21, 2025 | Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in markdown-it allows Cross-Site Scripting (XSS). This vulnerability is associated with program files lib/renderer.mjs. This issue affects markdown-it: 14.1.0. NOTE: the… | ||
| CVE-2026-2327 | Med | 0.28 | 5.3 | 0.01 | Feb 12, 2026 | Versions of the package markdown-it from 13.0.0 and before 14.1.1 are vulnerable to Regular Expression Denial of Service (ReDoS) due to the use of the regex /\*+$/ in the linkify function. An attacker can supply a long sequence of * characters followed by a non-matching… | ||
| CVE-2022-21670 | Med | 0.28 | 5.3 | 0.02 | Jan 10, 2022 | markdown-it is a Markdown parser. Prior to version 1.3.2, special patterns with length greater than 50 thousand characterss could slow down the parser significantly. Users should upgrade to version 12.3.2 to receive a patch. There are no known workarounds aside from upgrading. | ||
| CVE-2015-3295 | Med | 0.28 | 5.3 | 0.01 | Jun 7, 2017 | markdown-it before 4.1.0 does not block data: URLs. | ||
| CVE-2026-48988 | Med | 0.27 | 5.3 | 0.00 | Jun 17, 2026 | markdown-it is a Markdown parser. Versions 14.1.1 and below contain a denial-of-service vulnerability when typographer: true is enabled, due to quadratic (O(n^2)) processing in the smartquotes rule. The issue stems from repeatedly modifying strings with replaceAt(), which… | ||
| CVE-2015-10005 | Low | 0.16 | 3.5 | 0.01 | Dec 27, 2022 | 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… |
- risk 0.42cvss 7.5epss 0.00
linkify-it is a links recognition library with full Unicode support. Prior to 5.0.1, LinkifyIt.prototype.match, the package's primary public API, has O(N²) algorithmic complexity for inputs containing many fuzzy links or emails because the JavaScript-level scan loop re-slices…
- risk 0.42cvss 7.5epss 0.00
linkify-it is a links recognition library with full Unicode support. Prior to 5.0.2, the mailto: schema validator used by .test() and .match() can be invoked at every mailto: occurrence and scan the remaining input through src_email_name in lib/re.mjs, causing O(n^2) CPU…
- risk 0.40cvss 6.1epss 0.00
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in markdown-it allows Cross-Site Scripting (XSS). This vulnerability is associated with program files lib/renderer.mjs. This issue affects markdown-it: 14.1.0. NOTE: the…
- risk 0.28cvss 5.3epss 0.01
Versions of the package markdown-it from 13.0.0 and before 14.1.1 are vulnerable to Regular Expression Denial of Service (ReDoS) due to the use of the regex /\*+$/ in the linkify function. An attacker can supply a long sequence of * characters followed by a non-matching…
- risk 0.28cvss 5.3epss 0.02
markdown-it is a Markdown parser. Prior to version 1.3.2, special patterns with length greater than 50 thousand characterss could slow down the parser significantly. Users should upgrade to version 12.3.2 to receive a patch. There are no known workarounds aside from upgrading.
- risk 0.28cvss 5.3epss 0.01
markdown-it before 4.1.0 does not block data: URLs.
- risk 0.27cvss 5.3epss 0.00
markdown-it is a Markdown parser. Versions 14.1.1 and below contain a denial-of-service vulnerability when typographer: true is enabled, due to quadratic (O(n^2)) processing in the smartquotes rule. The issue stems from repeatedly modifying strings with replaceAt(), which…
- risk 0.16cvss 3.5epss 0.01
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…