Regular Expression Denial of Service in simple-markdown
A vulnerability has been found in simple-markdown 0.5.1 and classified as problematic. Affected by this vulnerability is an unknown functionality of the file simple-markdown.js. The manipulation leads to inefficient regular expression complexity. The attack can be launched remotely. Upgrading to version 0.5.2 is able to address this issue. The name of the patch is 89797fef9abb4cab2fb76a335968266a92588816. It is recommended to upgrade the affected component. The associated identifier of this vulnerability is VDB-220639.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | simple-markdown | < 0.5.2 | 0.5.2 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2019-25103
- https://github.com/Khan/simple-markdown/issues/71
- https://github.com/ariabuckles/simple-markdown/commit/89797fef9abb4cab2fb76a335968266a92588816
- https://github.com/ariabuckles/simple-markdown
- https://github.com/ariabuckles/simple-markdown/releases/tag/0.5.2
- https://snyk.io/vuln/SNYK-JS-SIMPLEMARKDOWN-460540
- https://vuldb.com/?ctiid.220639
- https://vuldb.com/?id.220639
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H- Weakness (CWE)
CWE-1333- Platform
- npm
- Package
simple-markdown- Disclosed
- 12.02.2023
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-gpvj-gp8c-c7p2 - CC BY 4.0
Vulnerability history: simple-markdown
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 3
- First → latest
- 04.2019 02.2023
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 2
- Medium 1
Disclosures per year
- 2019: 1
- 2020: 0
- 2021: 0
- 2022: 0
- 2023: 2
- 2024: 0
- 2025: 0
- 2026: 0
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