# CVE-2023-26303

## Summary

- **CVE ID:** CVE-2023-26303
- **Severity:** LOW
- **CVSS Score:** 3.3 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L)
- **CWE:** CWE-173
- **Published:** Feb 22, 2023
- **Last Modified:** Mar 13, 2026

## Description

Denial of service could be caused to markdown-it-py, before v2.2.0, if an attacker was allowed to force null assertions with specially crafted input.

## Affected Products

- Executable Books — markdown-it-py (0)

## References

- [CNA](https://github.com/executablebooks/markdown-it-py/commit/ae03c6107dfa18e648f6fdd1280f5b89092d5d49)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.03%
- **EPSS Percentile:** 7.1

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._