CVE-2023-26303 - CVE House
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Status published Low CVE-2023-26303

markdown-it-py crash on null assertions

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Mark Esler
  • Chris Sewell

References

More from Executable Books

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CVE-2023-26302
markdown-it-py CLI crash on invalid UTF-8 characters
Low 3.3

Affected Vendor

Executable Books

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Affected Software

markdown-it-py
Vulnerable Versions:
0

Timeline

Official Publish: February 22nd, 2023
Last Modified: March 11th, 2025
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Weaknesses (CWE)

CWE-173

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.