python-markdownify (aka markdownify) before 0.14.1 allows large headline prefixes such as <h9999999> in addition to <h1> through <h6>. This causes memory consumption.

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact Low

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation poc

Automatable no

Technical Impact partial

Affected Vendors & Products

No data.

No data.

No data.

References
Link Providers
https://github.com/matthewwithanm/python-markdownify/compare/0.14.0...0.14.1 cve-icon cve-icon
https://github.com/matthewwithanm/python-markdownify/issues/143 cve-icon cve-icon cve-icon
History

Tue, 29 Apr 2025 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Sat, 26 Apr 2025 21:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-1284
Metrics cvssV3_1

{'score': 2.9, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L'}

Sat, 26 Apr 2025 21:30:00 +0000

Type Values Removed Values Added
Description python-markdownify (aka markdownify) before 0.14.1 allows large headline prefixes such as <h9999999> in addition to <h1> through <h6>. This causes memory consumption.
References
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2025-04-26T00:00:00.000Z

Updated: 2025-04-29T15:22:30.630Z

Reserved: 2025-04-26T00:00:00.000Z

Link: CVE-2025-46656

cve-icon Vulnrichment

Updated: 2025-04-29T14:57:08.822Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-04-26T22:15:17.260

Modified: 2025-04-29T16:15:37.573

Link: CVE-2025-46656

cve-icon Redhat

No data.