Vulnerability Database · PyPI · markdown2 · Version
markdown2 1.4.2
1.4.2 is affected by 6 vulnerabilities.
The vulnerabilities that cover this exact version are listed below with the fixed version to move to. The upgrade Vulert recommends: 2.5.5.
Critical 0 High 1 Medium 2 Low 0 Unrated 3
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Released 27 Apr 2012
Licence MIT
Also known from other sources 6
Newer releases 60
Database updated 23/Oct/2026
Release and licence data published by PyPI. Licence information is not legal advice.
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01 Vulnerabilities affecting this version
markdown2 1.4.2 vulnerabilities
6 vulnerabilities cover markdown2 1.4.2. Open the full list in the database.
| Vulnerability | Severity | Fixed version | Disclosed |
|---|---|---|---|
| CVE-2021-26813: Vulnerability in markdown2 | 7.5 high | 2.4.0 | 02 Jun 2021 |
| CVE-2020-11888: XSS in python-markdown2 | 6.1 medium | 2.3.9 | 22 Apr 2020 |
| CVE-2018-5773: markdown2 - Cross-Site Scripting Vulnerability | 6.1 medium | 2.3.6 | 12 Jul 2018 |
| CVE-2021-26813: markdown2 Regular Expression Denial of Service Vulnerability | N/A unrated | 2.4.0 | 03 Mar 2021 |
| CVE-2020-11888: python-markdown2 XSS Vulnerability | N/A unrated | 2.3.9 | 20 Apr 2020 |
| CVE-2018-5773: markdown2 - Cross-Site Scripting (XSS) Vulnerability | N/A unrated | 2.3.6 | 18 Jan 2018 |
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Questions
About markdown2 1.4.2
Is markdown2 1.4.2 vulnerable?
Yes. 6 vulnerabilities in the Vulert database cover markdown2 1.4.2: 0 critical, 1 high, 2 medium and 0 low, plus 3 not yet rated. The upgrade Vulert recommends is 2.5.5, and each entry above names the fixed version to move to.
Which version of markdown2 should I use instead of 1.4.2?
2.5.5 is the version Vulert recommends for this release line. The version table on the package page lists every release with the vulnerabilities recorded against it.
Is 1.4.2 the latest release of markdown2?
No. 1.4.2 was published 27 Apr 2012, and newer releases exist. Newer is not automatically safer — the version table on the package page shows what each release carries.
How do I monitor markdown2 for upcoming vulnerabilities?
Upload the manifest or SBOM for your application at vulert.com/scanner and Vulert keeps checking the markdown2 version you actually run against new disclosures, then alerts you when one affects it. There is no installation and no source-code access required.