CVSS 3.1
3.3 lowCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:LCVE-2025-46656
Low (3.3) in matthewwithanm markdownify. EPSS 0.2% chance of exploitation in the next 30 days. Fixed in markdownify 0.14.1.
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.
Severity
- EPSS
- 0.2% chance of exploitation in the next 30 days; higher than 12% of CVEs (scores of 2026-10-31)
- CWE
- CWE-1284
- Published
- Modified
- Record from
- the NVD, synced
Affected
- matthewwithanm:markdownify
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-7mpr-5m44-h73r | PyPI | markdownify | <0.14.1 | 0.14.1 |
| PYSEC-2026-1604 | PyPI | markdownify | <0.14.1 | 0.14.1 |