CVE-2025-46656 — LOW (2.9) — White Hats Nepal

Q: What is CVE-2025-46656?

CVE-2025-46656 is a vulnerability with a CVSS score of 2.9 (LOW). python-markdownify (aka markdownify) before 0.14.1 allows large headline prefixes such as in addition to through . This causes memory consumption.

Vulnerability 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.

CVSS Score

2.9

LOW

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

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

LOW

Affected Products

Vendor	Product	Versions
Matthewwithanm	Markdownify	< 0.14.1

Related Weaknesses (CWE)

CWE-1284

References

FAQ

What is CVE-2025-46656?

CVE-2025-46656 is a vulnerability with a CVSS score of 2.9 (LOW). 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.

How severe is CVE-2025-46656?

CVE-2025-46656 has been rated LOW with a CVSS base score of 2.9/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-46656?

Check the references section above for vendor advisories and patch information. Affected products include: Matthewwithanm Markdownify.