CVE-2025-46656

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.

CVSS v3 2.9 LOW

2.9^/10

CVSS v3 : LOW

Vector :

Exploitability : 1.4 / Impact : 1.4

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://github.com/matthewwithanm/python-markdownify/compare/0.14.0...0.14.1	Patch
https://github.com/matthewwithanm/python-markdownify/issues/143	Exploit
https://github.com/matthewwithanm/python-markdownify/issues/143	Exploit

Configurations

Configuration 1 (hide)

cpe:2.3:a:matthewwithanm:markdownify:*:*:*:*:*:python:*:*

History

No history.

Information

Published : 2025-04-26 22:15

Updated : 2025-10-16 20:24

NVD link : CVE-2025-46656

Mitre link : CVE-2025-46656

CVE.ORG link : CVE-2025-46656

JSON object : View

Products Affected

matthewwithanm

markdownify

CWE

CWE-1284

Improper Validation of Specified Quantity in Input

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