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@renovate renovate bot commented Sep 26, 2025

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This PR contains the following updates:

Package Change Age Confidence
tornado (source) >=4.0,<5.0 -> >=6.5,<6.6 age confidence

GitHub Vulnerability Alerts

CVE-2025-47287

Summary

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.

Affected versions

All versions of Tornado prior to 6.5 are affected. The vulnerable parser is enabled by default.

Solution

Upgrade to Tornado version 6.5. In the meantime, risk can be mitigated by blocking Content-Type: multipart/form-data in a proxy.


Release Notes

tornadoweb/tornado (tornado)

v6.5

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v6.4.2

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v6.4.1

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v6.4

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v6.3.3

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v6.3.2

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v6.3.1

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v6.3

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v6.2

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v6.1

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v6.0.4

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v6.0.3

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v6.0.2

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v6.0.1

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v6.0

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v5.1.1

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v5.1

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v5.0.2

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v5.0.1

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v5.0

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Configuration

📅 Schedule: Branch creation - "" (UTC), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

Rebasing: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.


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This PR was generated by Mend Renovate. View the repository job log.

@renovate renovate bot force-pushed the renovate/pypi-tornado-vulnerability branch 3 times, most recently from 363ec57 to f49b050 Compare September 29, 2025 12:10
@renovate renovate bot force-pushed the renovate/pypi-tornado-vulnerability branch from f49b050 to 818ffb3 Compare September 30, 2025 03:35
@dkropachev
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Closed in favor of #544

@dkropachev dkropachev closed this Sep 30, 2025
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renovate bot commented Sep 30, 2025

Renovate Ignore Notification

Because you closed this PR without merging, Renovate will ignore this update. You will not get PRs for any future 6.x releases. But if you manually upgrade to 6.x then Renovate will re-enable minor and patch updates automatically.

If you accidentally closed this PR, or if you changed your mind: rename this PR to get a fresh replacement PR.

@renovate renovate bot deleted the renovate/pypi-tornado-vulnerability branch September 30, 2025 03:55
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