CVE-2020-7658 - Vulnerability Details - OpenCVE

Description

meinheld prior to 1.0.2 is vulnerable to HTTP Request Smuggling. HTTP pipelining issues and request smuggling attacks might be possible due to incorrect Content-Length and Transfer encoding header parsing.

Published: 2020-05-22

Score: 6.1 Medium

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

meinheld

affected

Version	Status	Constraints
`All versions prior to 1.0.2`	affected	—

Configuration 1 [-]

cpe:2.3:a:meinheld:meinheld:*:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2020-0109	meinheld prior to 1.0.2 is vulnerable to HTTP Request Smuggling. HTTP pipelining issues and request smuggling attacks might be possible due to incorrect Content-Length and Transfer encoding header parsing.
Github GHSA	GHSA-63h2-9cc8-fc7m	meinheld vulnerable to HTTP Request Smuggling

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction Required

No CVSS v3.0

Access Vector Network

Access Complexity Medium

Authentication None

Confidentiality Impact None

Integrity Impact Partial

Availability Impact None

This CVE is not in the KEV list.

The EPSS score is 0.00686.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://github.com/mopemope/meinheld/blob/master/CHANGES.rst%2C
https://snyk.io/vuln/SNYK-PYTHON-MEINHELD-569140

History

No history.

Subscriptions

Meinheld Meinheld

MITRE

Status: PUBLISHED

Assigner: snyk

Published: 2020-05-22T15:48:43.000Z

Updated: 2024-08-04T09:33:19.997Z

Reserved: 2020-01-21T00:00:00.000Z

Link: CVE-2020-7658

Vulnrichment

No data.

NVD

Status : Modified

Published: 2020-05-22T16:15:10.973

Modified: 2026-06-17T03:25:12.867

Link: CVE-2020-7658

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-444
Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')

{"containers": {"cna": {"affected": [{"product": "meinheld", "vendor": "n/a", "versions": [{"status": "affected", "version": "All versions prior to 1.0.2"}]}], "descriptions": [{"lang": "en", "value": "meinheld prior to 1.0.2 is vulnerable to HTTP Request Smuggling. HTTP pipelining issues and request smuggling attacks might be possible due to incorrect Content-Length and Transfer encoding header parsing."}], "problemTypes": [{"descriptions": [{"description": "HTTP Request Smuggling", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2020-05-22T15:48:43.000Z", "orgId": "bae035ff-b466-4ff4-94d0-fc9efd9e1730", "shortName": "snyk"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://github.com/mopemope/meinheld/blob/master/CHANGES.rst%2C"}, {"tags": ["x_refsource_MISC"], "url": "https://snyk.io/vuln/SNYK-PYTHON-MEINHELD-569140"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "report@snyk.io", "ID": "CVE-2020-7658", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "meinheld", "version": {"version_data": [{"version_value": "All versions prior to 1.0.2"}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "meinheld prior to 1.0.2 is vulnerable to HTTP Request Smuggling. HTTP pipelining issues and request smuggling attacks might be possible due to incorrect Content-Length and Transfer encoding header parsing."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "HTTP Request Smuggling"}]}]}, "references": {"reference_data": [{"name": "https://github.com/mopemope/meinheld/blob/master/CHANGES.rst,", "refsource": "MISC", "url": "https://github.com/mopemope/meinheld/blob/master/CHANGES.rst,"}, {"name": "https://snyk.io/vuln/SNYK-PYTHON-MEINHELD-569140", "refsource": "MISC", "url": "https://snyk.io/vuln/SNYK-PYTHON-MEINHELD-569140"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T09:33:19.997Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/mopemope/meinheld/blob/master/CHANGES.rst%2C"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://snyk.io/vuln/SNYK-PYTHON-MEINHELD-569140"}]}]}, "cveMetadata": {"assignerOrgId": "bae035ff-b466-4ff4-94d0-fc9efd9e1730", "assignerShortName": "snyk", "cveId": "CVE-2020-7658", "datePublished": "2020-05-22T15:48:43.000Z", "dateReserved": "2020-01-21T00:00:00.000Z", "dateUpdated": "2024-08-04T09:33:19.997Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"affected": [{"affectedData": [{"product": "meinheld", "vendor": "n/a", "versions": [{"status": "affected", "version": "All versions prior to 1.0.2"}]}], "source": "report@snyk.io"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:meinheld:meinheld:*:*:*:*:*:*:*:*", "matchCriteriaId": "C4837EC0-9EAA-4F40-89E4-9ACB30E11D9A", "versionEndExcluding": "1.0.2", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "meinheld prior to 1.0.2 is vulnerable to HTTP Request Smuggling. HTTP pipelining issues and request smuggling attacks might be possible due to incorrect Content-Length and Transfer encoding header parsing."}, {"lang": "es", "value": "meinheld versiones anteriores a 1.0.2, es vulnerable al tr\u00e1fico no autorizado de peticiones HTTP. Problemas de canalizaci\u00f3n de HTTP y los ataques de tr\u00e1fico no autorizado de peticiones podr\u00edan ser posibles debido a un Content-Length y al an\u00e1lisis de encabezado de codificaci\u00f3n Transfer incorrectos."}], "id": "CVE-2020-7658", "lastModified": "2026-06-17T03:25:12.867", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 4.3, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": true}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 2.7, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2020-05-22T16:15:10.973", "references": [{"source": "report@snyk.io", "url": "https://github.com/mopemope/meinheld/blob/master/CHANGES.rst%2C"}, {"source": "report@snyk.io", "tags": ["Patch", "Release Notes", "Third Party Advisory"], "url": "https://snyk.io/vuln/SNYK-PYTHON-MEINHELD-569140"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://github.com/mopemope/meinheld/blob/master/CHANGES.rst%2C"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Release Notes", "Third Party Advisory"], "url": "https://snyk.io/vuln/SNYK-PYTHON-MEINHELD-569140"}], "sourceIdentifier": "report@snyk.io", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-444"}], "source": "nvd@nist.gov", "type": "Primary"}]}