Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessUnknown prerequisites
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ExploitInteract with Tornado application
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ExecutionTrigger unspecified vulnerability
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ImpactAchieve unknown impact
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A06:2025 - Insecure Design
ASVS 5.0
V2 - Validation and Business Logic Resource consumption limits
MITRE ATT&CK
1 technique across 1 tactic: Impact The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Exploitation Conditions | Exploitation conditions cannot be determined from available data. No CVSS vector is present to indicate attack vector (network vs. local), complexity, or privilege requirements. No description details configuration requirements, affected features, or deployment modes. Authentication requirements not confirmed from available data. The absence of a CVSS PR field means it is unknown whether exploitation requires authenticated access. Security teams cannot assess realistic exploitation prerequisites until a vendor advisory or CVE description with technical detail is published. |
| Impact | Risk assessment is severely constrained by data scarcity. No CVSS score or vector is available, meaning attack vector, complexity, privilege requirements, and scope are all unknown. The EPSS score of 0.04% at the 11th percentile indicates low probability of exploitation in the near term based on current signals, which is consistent with the absence of both KEV listing and public POC code. No public exploit identified at time of analysis. No SSVC decision data is available. Without CVSS, CWE, or a vendor advisory describing the vulnerability class or impact, it is not possible to assess whether this is a remote code execution, denial of service, information disclosure, or lesser-severity issue. Security teams should treat this as low-signal-but-unverified - the low EPSS argues against emergency response, but the absence of a severity rating does not confirm low severity. |
| Exploit ScenarioDerived | No exploit scenario can be constructed with confidence - the vulnerability type, affected component within Tornado, and required conditions are entirely undisclosed. No public exploit identified at time of analysis and no KEV listing exists. Any scenario description would be speculative invention rather than data-grounded analysis. |
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Alert meAnalysisAIv1 – May 27, 2026
py3-tornado in Alpine Linux received a security fix packaged as version 6.5.4-r0, addressing an unspecified vulnerability in the Tornado asynchronous Python web framework. The nature, severity, and impact of the underlying flaw are not disclosed in available intelligence - no CVE description, CVSS vector, or CWE classification has been published. With an EPSS score of 0.04% (11th percentile) and no public exploit identified at time of analysis, the current exploitation signal is very low, though the absence of severity data prevents meaningful risk contextualization.
RemediationAI
Upgrade the py3-tornado package on Alpine Linux to version 6.5.4-r0 or later using the standard Alpine package manager: 'apk upgrade py3-tornado'. This is the vendor-released patch per the Alpine Linux advisory. The exact upstream Tornado fix version corresponding to Alpine package 6.5.4-r0 should be cross-referenced against the upstream Tornado changelog at the project's official site to confirm the specific security fix included. No workarounds or compensating controls can be specified because the vulnerability class and attack surface are unknown. If immediate patching is not possible, consider restricting network access to services running Tornado-based applications as a general precaution, noting this may impact availability of legitimate traffic.
Affected VersionsENISA
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in pypi
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
Tornado is an asynchronous, non-blocking Python web framework and networking library commonly used for building web applications, APIs, and real-time services. The affected package is py3-tornado, the Alpine Linux packaging of the upstream Tornado library. The Alpine package version 6.5.4-r0 follows the Alpine naming convention of <upstream_version>-r<package_revision>, suggesting upstream Tornado version 6.5.4 contains the fix. No CWE classification is available, so the root cause vulnerability class - whether it is a memory safety issue, injection flaw, authentication bypass, or other category - cannot be determined from current data. No CPE strings were provided to further narrow the affected component.
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Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionCVE.org
Alpine Linux: py3-tornado fixed in 6.5.4-r0
Blast Radius
ecosystem impact- 1 pypi packages depend on tornado (1 direct, 0 indirect)
Ecosystem-wide dependent count for version 6.5.3.
Threat Intelligence Overview
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.
An issue in Docmosis Tornado v.2.9.7 and before allows a remote attacker to execute arbitrary code via a crafted script
An issue was discovered in Docmosis Tornado prior to version 2.9.5. Rated high severity (CVSS 8.8), this vulnerability i
Docmosis Tornado <= 2.9.4 is vulnerable to Directory Traversal leading to the disclosure of arbitrary content on the fil
An issue was discovered in Docmosis Tornado prior to version 2.9.5. Rated high severity (CVSS 7.5), this vulnerability i
Denial of service in the Tornado web framework's CurlAsyncHTTPClient (all releases before 6.5.9) lets an unauthenticated
In versions of Tornado prior to 6.5.5, the only limit on the number of parts in `multipart/form-data` is the `max_body_s
Memory amplification denial of service in the Tornado Python web framework before 6.5.8 lets unauthenticated remote atta
Credential leakage in Tornado's CurlAsyncHTTPClient (all releases through 6.5.6) lets sensitive per-request state — clie
Unauthenticated local file disclosure in Tornado before 6.5.9 lets remote attackers read files outside a configured stat
Denial-of-service in Tornado prior to 6.5.8 allows unauthenticated remote attackers to stall the entire server by sendin
Tornado Python web framework on Alpine Linux received a security fix in package version 6.5.4-r0, addressing an uncharac
Tornado is a Python web framework and asynchronous networking library. Rated high severity (CVSS 7.5), this vulnerabilit
EUVD-2025-203029
GHSA-jhmp-mqwm-3gq8
NVD
CVE.org
EPSS
Exploit-DB