Resource exhaustion in Tornadoweb Tornado
CVE-2025-47287
Tornado is a Python web framework and asynchronous networking library. When Tornado's ``multipart/form-data`` parser encounters certain errors, it logs a warning but continues trying to parse the remainder of the data. This allows remote a…
EPSS: 0.012 (79.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Tornadoweb Tornado — versions < 6.5.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- https://github.com/tornadoweb/tornado/security/advisories/GHSA-7cx3-6m66-7c5m (x_refsource_CONFIRM)
- https://github.com/tornadoweb/tornado/commit/b39b892bf78fe8fea01dd45199aa88307e7162f3 (x_refsource_MISC)
Frequently asked questions
- What is CVE-2025-47287?
- CVE-2025-47287 is a high-severity vulnerability in Tornadoweb Tornado, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2025-05-15.
- How severe is CVE-2025-47287?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2025-47287 known to be exploited?
- 10 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.