CVE catalog
CVE-2025-47287
Tornado vulnerability
- Severity
- High · CVSS 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.74% · Oct 25, 2026
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 attackers to generate an extremely high volume of logs, constituting a DoS attack. This DoS is compounded by the fact that the logging subsystem is synchronous. All versions of Tornado prior to 6.5.0 are affected. The vulnerable parser is enabled by default. Upgrade to Tornado version 6.50 to receive a patch. As a workaround, risk can be mitigated by blocking `Content-Type: multipart/form-data` in a proxy.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | python-tornado | sid | 6.5.5-5 | fixed |
| Debian | python-tornado | forky | 6.5.5-5 | fixed |
| Debian | python-tornado | trixie | 6.4.2-3+deb13u2 | fixed |
| Debian | python-tornado | trixie-security | 6.4.2-3+deb13u2 | fixed |
| Debian | python-tornado | bookworm | 6.2.0-3+deb12u4 | fixed |
| Debian | python-tornado | bookworm-security | 6.2.0-3+deb12u4 | fixed |
| Ubuntu | python-tornado | noble | 6.4.0-1ubuntu0.2 | fixed |
| Ubuntu | python-tornado-doc | noble | 6.4.0-1ubuntu0.2 | fixed |
| Ubuntu | python3-tornado | noble | 6.4.0-1ubuntu0.2 | fixed |
| Suse | venv-salt-minion | manager client tools for rhel, liberty and clones 9-client-tools | 3006.0-1.59.1 | fixed |
| Ubuntu | python-tornado | pro | 6.1.0-1build1 | vulnerable |
| Ubuntu | python-tornado | pro | 6.1.0-2 | vulnerable |
| Ubuntu | python-tornado | pro | 6.1.0-3 | vulnerable |
| Ubuntu | python-tornado | pro | 6.1.0-3build1 | vulnerable |
| Ubuntu | python-tornado | pro | 6.1.0-3ubuntu0.1~esm1 | vulnerable |
| Ubuntu | python-tornado | pro | 6.1.0-3ubuntu0.1~esm2 | fixed |
| Ubuntu | python-tornado | 24.04 | 6.3.2-1 | vulnerable |
| Ubuntu | python-tornado | 24.04 | 6.4.0-0ubuntu1 | vulnerable |
| Ubuntu | python-tornado | 24.04 | 6.4.0-1 | vulnerable |
| Ubuntu | python-tornado | 24.04 | 6.4.0-1build1 | vulnerable |
| Ubuntu | python-tornado | 24.04 | 6.4.0-1ubuntu0.1 | vulnerable |
| Ubuntu | python-tornado | 24.04 | 6.4.0-1ubuntu0.2 | fixed |
| Ubuntu | python-tornado | 25.10 | 6.4.2-1 | vulnerable |
| Ubuntu | python-tornado | 25.10 | 6.4.2-2 | fixed |
| Ubuntu | python-tornado | pro | 6.1.0-1build1 | vulnerable |
| Ubuntu | python-tornado | pro | 6.1.0-2 | vulnerable |
| Ubuntu | python-tornado | pro | 6.1.0-3 | vulnerable |
| Ubuntu | python-tornado | pro | 6.1.0-3build1 | vulnerable |
| Ubuntu | python-tornado | pro | 6.1.0-3ubuntu0.1~esm1 | vulnerable |
| Ubuntu | python-tornado | pro | 6.1.0-3ubuntu0.1~esm2 | fixed |
| Ubuntu | python-tornado | 24.04 | 6.3.2-1 | vulnerable |
| Ubuntu | python-tornado | 24.04 | 6.4.0-0ubuntu1 | vulnerable |
| Ubuntu | python-tornado | 24.04 | 6.4.0-1 | vulnerable |
| Ubuntu | python-tornado | 24.04 | 6.4.0-1build1 | vulnerable |
| Ubuntu | python-tornado | 24.04 | 6.4.0-1ubuntu0.1 | vulnerable |
| Ubuntu | python-tornado | 24.04 | 6.4.0-1ubuntu0.2 | fixed |
| Opensuse | python-tornado6 | tumbleweed | 6.5-1.1 | fixed |
| Suse | python-tornado6 | linux micro 6.0 | 6.4-3.1 | fixed |
| Suse | python-tornado6 | linux enterprise module for python 3 15 sp7 | 6.3.2-150400.9.9.1 | fixed |
| Suse | python-tornado | linux enterprise micro 5.3 | 4.5.3-150000.3.10.1 | fixed |
| Suse | python-tornado | linux enterprise micro 5.4 | 4.5.3-150000.3.10.1 | fixed |
| Suse | python-tornado | linux enterprise micro 5.5 | 4.5.3-150000.3.10.1 | fixed |
| Suse | python-tornado | linux enterprise module for basesystem 15 sp6 | 4.5.3-150000.3.10.1 | fixed |
| Suse | python-tornado | linux enterprise high performance computing 15 sp3-ltss | 4.5.3-150000.3.10.1 | fixed |
| Suse | python-tornado | linux enterprise high performance computing 15 sp4-espos | 4.5.3-150000.3.10.1 | fixed |
| Suse | python-tornado | linux enterprise high performance computing 15 sp4-ltss | 4.5.3-150000.3.10.1 | fixed |
| Suse | python-tornado | linux enterprise high performance computing 15 sp5-espos | 4.5.3-150000.3.10.1 | fixed |
| Suse | python-tornado | linux enterprise high performance computing 15 sp5-ltss | 4.5.3-150000.3.10.1 | fixed |
| Suse | python-tornado | linux enterprise server 15 sp3-ltss | 4.5.3-150000.3.10.1 | fixed |
| Suse | python-tornado | linux enterprise server 15 sp4-ltss | 4.5.3-150000.3.10.1 | fixed |
| Suse | python-tornado | linux enterprise server 15 sp5-ltss | 4.5.3-150000.3.10.1 | fixed |
| Suse | python-tornado | linux enterprise server for sap applications 15 sp3 | 4.5.3-150000.3.10.1 | fixed |
| Suse | python-tornado | linux enterprise server for sap applications 15 sp4 | 4.5.3-150000.3.10.1 | fixed |
| Suse | python-tornado | linux enterprise server for sap applications 15 sp5 | 4.5.3-150000.3.10.1 | fixed |
| Suse | python-tornado | manager proxy 4.3 | 4.5.3-150000.3.10.1 | fixed |
| Suse | python-tornado | manager server 4.3 | 4.5.3-150000.3.10.1 | fixed |
| Suse | python-tornado | linux enterprise micro 5.2 | 4.5.3-150000.3.10.1 | fixed |
| Suse | python-tornado | enterprise storage 7.1 | 4.5.3-150000.3.10.1 | fixed |
| Suse | python-tornado | linux enterprise module for basesystem 15 sp7 | 4.5.3-150000.3.10.1 | fixed |
| Suse | python-tornado6 | linux enterprise module for python 3 15 sp6 | 6.3.2-150400.9.9.1 | fixed |
| Suse | python-tornado6 | linux enterprise high performance computing 15 sp4-espos | 6.3.2-150400.9.9.1 | fixed |
| Suse | python-tornado6 | linux enterprise high performance computing 15 sp4-ltss | 6.3.2-150400.9.9.1 | fixed |
| Suse | python-tornado6 | linux enterprise high performance computing 15 sp5-espos | 6.3.2-150400.9.9.1 | fixed |
| Suse | python-tornado6 | linux enterprise high performance computing 15 sp5-ltss | 6.3.2-150400.9.9.1 | fixed |
| Suse | python-tornado6 | linux enterprise server 15 sp4-ltss | 6.3.2-150400.9.9.1 | fixed |
| Suse | python-tornado6 | linux enterprise server 15 sp5-ltss | 6.3.2-150400.9.9.1 | fixed |
| Suse | python-tornado6 | linux enterprise server for sap applications 15 sp4 | 6.3.2-150400.9.9.1 | fixed |
| Suse | python-tornado6 | linux enterprise server for sap applications 15 sp5 | 6.3.2-150400.9.9.1 | fixed |
| Opensuse | python-tornado6 | leap 15.6 | 6.3.2-150400.9.9.1 | fixed |
| Suse | python-tornado | manager client tools 12 | 4.2.1-17.10.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | python-tornado | source | sid | 6.4.2-2 | not yet assigned | Not reported | [1105886] |
| Debian | python-tornado | source | forky | 6.4.2-2 | not yet assigned | Not reported | [1105886] |
| Debian | python-tornado | source | trixie | 6.4.2-2 | not yet assigned | Not reported | [1105886] |
| Debian | python-tornado | source | bookworm | 6.2.0-3+deb12u2 | not yet assigned | Not reported | [1105886] |
| Ubuntu | python-tornado | deb | noble | 6.4.0-1ubuntu0.2 | Not reported | Not reported | Not reported |
| Ubuntu | python-tornado-doc | deb | noble | 6.4.0-1ubuntu0.2 | Not reported | Not reported | Not reported |
| Ubuntu | python3-tornado | deb | noble | 6.4.0-1ubuntu0.2 | Not reported | Not reported | Not reported |
| Suse | venv-salt-minion | rpm | manager client tools for rhel, liberty and clones 9-client-tools | 3006.0-1.59.1 | Not reported | SUSE-EL-9-CLIENT-TOOLS-2025-2499 | Not reported |
| Ubuntu | python-tornado | deb | pro | 6.1.0-3ubuntu0.1~esm2 | Not reported | UBUNTU-CVE-2025-47287 | Not reported |
| Ubuntu | python-tornado | deb | 24.04 | 6.4.0-1ubuntu0.2 | Not reported | UBUNTU-CVE-2025-47287 | Not reported |
| Ubuntu | python-tornado | deb | 25.10 | 6.4.2-2 | Not reported | UBUNTU-CVE-2025-47287 | Not reported |
| Ubuntu | python-tornado | deb | pro | 6.1.0-3ubuntu0.1~esm2 | Not reported | USN-7547-1 | Not reported |
| Ubuntu | python-tornado | deb | 24.04 | 6.4.0-1ubuntu0.2 | Not reported | USN-7547-1 | Not reported |
| Opensuse | python-tornado6 | rpm | tumbleweed | 6.5-1.1 | Not reported | OPENSUSE-SU-2025:15153-1 | Not reported |
| Suse | python-tornado6 | rpm | linux micro 6.0 | 6.4-3.1 | Not reported | SUSE-SU-2025:20430-1 | Not reported |
| Suse | python-tornado6 | rpm | linux enterprise module for python 3 15 sp7 | 6.3.2-150400.9.9.1 | Not reported | SUSE-SU-2025:01649-2 | Not reported |
| Suse | python-tornado | rpm | linux enterprise micro 5.3 | 4.5.3-150000.3.10.1 | Not reported | SUSE-SU-2025:01726-1 | Not reported |
| Suse | python-tornado | rpm | linux enterprise micro 5.4 | 4.5.3-150000.3.10.1 | Not reported | SUSE-SU-2025:01726-1 | Not reported |
| Suse | python-tornado | rpm | linux enterprise micro 5.5 | 4.5.3-150000.3.10.1 | Not reported | SUSE-SU-2025:01726-1 | Not reported |
| Suse | python-tornado | rpm | linux enterprise module for basesystem 15 sp6 | 4.5.3-150000.3.10.1 | Not reported | SUSE-SU-2025:01726-1 | Not reported |
| Suse | python-tornado | rpm | linux enterprise high performance computing 15 sp3-ltss | 4.5.3-150000.3.10.1 | Not reported | SUSE-SU-2025:01726-1 | Not reported |
| Suse | python-tornado | rpm | linux enterprise high performance computing 15 sp4-espos | 4.5.3-150000.3.10.1 | Not reported | SUSE-SU-2025:01726-1 | Not reported |
| Suse | python-tornado | rpm | linux enterprise high performance computing 15 sp4-ltss | 4.5.3-150000.3.10.1 | Not reported | SUSE-SU-2025:01726-1 | Not reported |
| Suse | python-tornado | rpm | linux enterprise high performance computing 15 sp5-espos | 4.5.3-150000.3.10.1 | Not reported | SUSE-SU-2025:01726-1 | Not reported |
| Suse | python-tornado | rpm | linux enterprise high performance computing 15 sp5-ltss | 4.5.3-150000.3.10.1 | Not reported | SUSE-SU-2025:01726-1 | Not reported |
| Suse | python-tornado | rpm | linux enterprise server 15 sp3-ltss | 4.5.3-150000.3.10.1 | Not reported | SUSE-SU-2025:01726-1 | Not reported |
| Suse | python-tornado | rpm | linux enterprise server 15 sp4-ltss | 4.5.3-150000.3.10.1 | Not reported | SUSE-SU-2025:01726-1 | Not reported |
| Suse | python-tornado | rpm | linux enterprise server 15 sp5-ltss | 4.5.3-150000.3.10.1 | Not reported | SUSE-SU-2025:01726-1 | Not reported |
| Suse | python-tornado | rpm | linux enterprise server for sap applications 15 sp3 | 4.5.3-150000.3.10.1 | Not reported | SUSE-SU-2025:01726-1 | Not reported |
| Suse | python-tornado | rpm | linux enterprise server for sap applications 15 sp4 | 4.5.3-150000.3.10.1 | Not reported | SUSE-SU-2025:01726-1 | Not reported |
| Suse | python-tornado | rpm | linux enterprise server for sap applications 15 sp5 | 4.5.3-150000.3.10.1 | Not reported | SUSE-SU-2025:01726-1 | Not reported |
| Suse | python-tornado | rpm | manager proxy 4.3 | 4.5.3-150000.3.10.1 | Not reported | SUSE-SU-2025:01726-1 | Not reported |
| Suse | python-tornado | rpm | manager server 4.3 | 4.5.3-150000.3.10.1 | Not reported | SUSE-SU-2025:01726-1 | Not reported |
| Suse | python-tornado | rpm | linux enterprise micro 5.2 | 4.5.3-150000.3.10.1 | Not reported | SUSE-SU-2025:01726-1 | Not reported |
| Suse | python-tornado | rpm | enterprise storage 7.1 | 4.5.3-150000.3.10.1 | Not reported | SUSE-SU-2025:01726-1 | Not reported |
| Suse | python-tornado | rpm | linux enterprise module for basesystem 15 sp7 | 4.5.3-150000.3.10.1 | Not reported | SUSE-SU-2025:01726-2 | Not reported |
| Suse | python-tornado6 | rpm | linux enterprise module for python 3 15 sp6 | 6.3.2-150400.9.9.1 | Not reported | SUSE-SU-2025:01649-1 | Not reported |
| Suse | python-tornado6 | rpm | linux enterprise high performance computing 15 sp4-espos | 6.3.2-150400.9.9.1 | Not reported | SUSE-SU-2025:01649-1 | Not reported |
| Suse | python-tornado6 | rpm | linux enterprise high performance computing 15 sp4-ltss | 6.3.2-150400.9.9.1 | Not reported | SUSE-SU-2025:01649-1 | Not reported |
| Suse | python-tornado6 | rpm | linux enterprise high performance computing 15 sp5-espos | 6.3.2-150400.9.9.1 | Not reported | SUSE-SU-2025:01649-1 | Not reported |
| Suse | python-tornado6 | rpm | linux enterprise high performance computing 15 sp5-ltss | 6.3.2-150400.9.9.1 | Not reported | SUSE-SU-2025:01649-1 | Not reported |
| Suse | python-tornado6 | rpm | linux enterprise server 15 sp4-ltss | 6.3.2-150400.9.9.1 | Not reported | SUSE-SU-2025:01649-1 | Not reported |
| Suse | python-tornado6 | rpm | linux enterprise server 15 sp5-ltss | 6.3.2-150400.9.9.1 | Not reported | SUSE-SU-2025:01649-1 | Not reported |
| Suse | python-tornado6 | rpm | linux enterprise server for sap applications 15 sp4 | 6.3.2-150400.9.9.1 | Not reported | SUSE-SU-2025:01649-1 | Not reported |
| Suse | python-tornado6 | rpm | linux enterprise server for sap applications 15 sp5 | 6.3.2-150400.9.9.1 | Not reported | SUSE-SU-2025:01649-1 | Not reported |
| Opensuse | python-tornado6 | rpm | leap 15.6 | 6.3.2-150400.9.9.1 | Not reported | SUSE-SU-2025:01649-1 | Not reported |
| Suse | python-tornado | rpm | manager client tools 12 | 4.2.1-17.10.1 | Not reported | SUSE-SU-2025:01732-1 | Not reported |
OpenFactory catalog packages
[openSUSE Tumbleweed]
- [python313-tornado6]Unknown
Source package: [python-tornado6]
Details (1)
6.5.8-1.1· x86_64 · tumbleweedUnknown · Fixed:
6.5-1.1Version impact unknown
usn · python-tornado6 · opensuse · tumbleweed
- [python314-tornado6]Unknown
Source package: [python-tornado6]
Details (1)
6.5.8-1.1· x86_64 · tumbleweedUnknown · Fixed:
6.5-1.1Version impact unknown
usn · python-tornado6 · opensuse · tumbleweed
[Debian 12 (Bookworm)]
- [python3-tornado]Fixed
Source package: [python-tornado]
Details (4)
6.2.0-3+deb12u4· amd64 · bookwormFixed · Fixed:
6.2.0-3+deb12u2usn · python-tornado · debian · bookworm; usn · python-tornado · debian · 12
6.2.0-3+deb12u4· arm64 · bookwormFixed · Fixed:
6.2.0-3+deb12u2usn · python-tornado · debian · bookworm; usn · python-tornado · debian · 12
6.2.0-3+deb12u4· amd64 · bookworm-securityFixed · Fixed:
6.2.0-3+deb12u2usn · python-tornado · debian · bookworm; usn · python-tornado · debian · 12
6.2.0-3+deb12u4· arm64 · bookworm-securityFixed · Fixed:
6.2.0-3+deb12u2usn · python-tornado · debian · bookworm; usn · python-tornado · debian · 12
- [python-tornado-doc]Fixed
Source package: [python-tornado]
Details (4)
6.2.0-3+deb12u4· all · bookwormFixed · Fixed:
6.2.0-3+deb12u2usn · python-tornado · debian · bookworm; usn · python-tornado · debian · 12
6.2.0-3+deb12u4· all · bookwormFixed · Fixed:
6.2.0-3+deb12u2usn · python-tornado · debian · bookworm; usn · python-tornado · debian · 12
6.2.0-3+deb12u4· all · bookworm-securityFixed · Fixed:
6.2.0-3+deb12u2usn · python-tornado · debian · bookworm; usn · python-tornado · debian · 12
6.2.0-3+deb12u4· all · bookworm-securityFixed · Fixed:
6.2.0-3+deb12u2usn · python-tornado · debian · bookworm; usn · python-tornado · debian · 12
[Debian 13 (Trixie)]
- [python3-tornado]Fixed
Source package: [python-tornado]
Details (4)
6.4.2-3+deb13u2· amd64 · trixieFixed · Fixed:
6.4.2-2usn · python-tornado · debian · 13
6.4.2-3+deb13u2· arm64 · trixieFixed · Fixed:
6.4.2-2usn · python-tornado · debian · 13
6.4.2-3+deb13u2· amd64 · trixie-securityFixed · Fixed:
6.4.2-2usn · python-tornado · debian · 13
6.4.2-3+deb13u2· arm64 · trixie-securityFixed · Fixed:
6.4.2-2usn · python-tornado · debian · 13
- [python-tornado-doc]Fixed
Source package: [python-tornado]
Details (4)
6.4.2-3+deb13u2· all · trixieFixed · Fixed:
6.4.2-2usn · python-tornado · debian · 13
6.4.2-3+deb13u2· all · trixieFixed · Fixed:
6.4.2-2usn · python-tornado · debian · 13
6.4.2-3+deb13u2· all · trixie-securityFixed · Fixed:
6.4.2-2usn · python-tornado · debian · 13
6.4.2-3+deb13u2· all · trixie-securityFixed · Fixed:
6.4.2-2usn · python-tornado · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/rhsa-2025_8135.json]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2025-47287]
- [https://osv.dev/vulnerability/DLA-4188-1]
- [https://osv.dev/vulnerability/DSA-5938-1]
- [https://osv.dev/vulnerability/SUSE-EL-9-CLIENT-TOOLS-2025-2499]
- [https://osv.dev/vulnerability/SUSE-SU-2025:01649-1]
- [https://osv.dev/vulnerability/SUSE-SU-2025:01649-2]
- [https://osv.dev/vulnerability/SUSE-SU-2025:01726-1]
- [https://osv.dev/vulnerability/SUSE-SU-2025:01726-2]
- [https://osv.dev/vulnerability/SUSE-SU-2025:01732-1]
- [https://osv.dev/vulnerability/SUSE-SU-2025:20430-1]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2025-47287]
- [https://osv.dev/vulnerability/USN-7547-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2025:15153-1]
- [https://security-tracker.debian.org/tracker/CVE-2025-47287]
- [https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-47287.json]
- [https://ubuntu.com/security/notices/USN-7547-1]
- [https://wid.cert-bund.de/.well-known/csaf/white/2025/wid-sec-w-2025-1143.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX] · [Ubuntu Security Notices (USN)]