CVE-2025-47287 describes a Denial of Service (DoS) vulnerability in the Tornado Python web framework, affecting all versions prior to 6.5.0. An attacker can exploit a flaw in the multipart/form-data parser to generate an extremely high volume of logs, leading to resource exhaustion. This vulnerability carries a CVSS score of 7.5 (High), indicating it can be exploited remotely with low attack complexity, resulting in high availability impact. While no active exploitation, public exploit code, or significant community discussion has been observed, the default-enabled vulnerable parser and synchronous logging subsystem make it a critical concern.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 6.5.0CPE matchmatch criteria | cpe:2.3:a:tornadoweb:tornado:*:*:*:*:*:*:*:* | ||
11.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.