PyPI/tornado CVE-2026-31958: high 7.5, EPSS 0.38%
Tornado is vulnerable to DoS due to too many multipart parts
Action: Upgrade tornado to 6.5.5 or later.
pip install tornado==6.5.5Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 6.5.5 | - |
Fixed versions
| 6.5.5 |
Sources
- osv: GHSA-qjxf-f2mg-c6mc
- https://github.com/tornadoweb/tornado/security/advisories/GHSA-qjxf-f2mg-c6mc
- https://nvd.nist.gov/vuln/detail/CVE-2026-31958
- https://github.com/tornadoweb/tornado/commit/119a195e290c43ad2d63a2cf012c29d43d6ed839
- https://github.com/pypa/advisory-database/tree/main/vulns/tornado/PYSEC-2026-140.yaml
- https://github.com/tornadoweb/tornado
- https://github.com/tornadoweb/tornado/releases/tag/v6.5.5
- https://lists.debian.org/debian-lts-announce/2026/04/msg00000.html
CVE-2026-31958 · published · modified · JSON