PyPI/mistune CVE-2026-59925: high 7.5, EPSS 0.64%
Mistune inline_parser: quadratic-time parsing on long runs of `**x**` and `***x***` emphasis pairs
Action: Upgrade mistune to 3.3.0 or later.
pip install mistune==3.3.0Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 3.3.0 | - |
Fixed versions
| 3.3.0 |
Sources
- osv: GHSA-4j32-57v6-6g45
- https://github.com/lepture/mistune/security/advisories/GHSA-4j32-57v6-6g45
- https://nvd.nist.gov/vuln/detail/CVE-2026-59925
- https://github.com/lepture/mistune/commit/5de41fb8e527004dbc363e047a3c380c9288c74f
- https://github.com/lepture/mistune
- https://github.com/lepture/mistune/releases/tag/v3.3.0
- https://github.com/pypa/advisory-database/tree/main/vulns/mistune/PYSEC-2026-2213.yaml
CVE-2026-59925 · published · modified · JSON