CVE-2023-26303

markdown-it-py crash on null assertions

Published Feb 22, 2023 CVSS 3.1 · 3.3 Low EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source ID Title
EUVD EUVD EUVD-2023-0131 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.
Github GHSA Github GHSA GHSA-vrjv-mxr7-vjf8 markdown-it-py Denial of Service vulnerability
History
Type Values Removed Values Added
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. 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.
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Sources

Status
PUBLISHED
Assigner
canonical
Published
Updated
Mar 11, 2025, 6:22 PM
Reserved
Feb 21, 2023, 10:36 PM
Status
Modified
Published
Feb 23, 2023, 12:15 AM
Modified
Jun 17, 2026, 5:43 AM
Severity
Moderate
Public date
Feb 23, 2023, 11:32 AM