{"dataType": "CVE_RECORD", "cveMetadata": {"cveId": "CVE-2024-1135", "assignerOrgId": "c09c270a-b464-47c1-9133-acb35b22c19a", "state": "PUBLISHED", "assignerShortName": "@huntr_ai", "dateReserved": "2024-01-31T18:15:14.296Z", "datePublished": "2024-04-16T00:00:14.938Z", "dateUpdated": "2025-02-13T17:27:34.444Z"}, "containers": {"cna": {"title": "HTTP Request Smuggling in benoitc/gunicorn", "providerMetadata": {"orgId": "c09c270a-b464-47c1-9133-acb35b22c19a", "shortName": "@huntr_ai", "dateUpdated": "2024-06-30T23:06:05.937Z"}, "descriptions": [{"lang": "en", "value": "Gunicorn fails to properly validate Transfer-Encoding headers, leading to HTTP Request Smuggling (HRS) vulnerabilities. By crafting requests with conflicting Transfer-Encoding headers, attackers can bypass security restrictions and access restricted endpoints. This issue is due to Gunicorn's handling of Transfer-Encoding headers, where it incorrectly processes requests with multiple, conflicting Transfer-Encoding headers, treating them as chunked regardless of the final encoding specified. This vulnerability allows for a range of attacks including cache poisoning, session manipulation, and data exposure."}], "affected": [{"vendor": "benoitc", "product": "benoitc/gunicorn", "versions": [{"version": "unspecified", "status": "affected", "versionType": "custom", "lessThanOrEqual": "latest"}]}], "references": [{"url": "https://huntr.com/bounties/22158e34-cfd5-41ad-97e0-a780773d96c1"}, {"url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00027.html"}], "metrics": [{"cvssV3_0": {"version": "3.0", "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "baseScore": 7.5, "baseSeverity": "HIGH"}}], "problemTypes": [{"descriptions": [{"type": "CWE", "lang": "en", "description": "CWE-444 Inconsistent Interpretation of HTTP Requests", "cweId": "CWE-444"}]}], "source": {"advisory": "22158e34-cfd5-41ad-97e0-a780773d96c1", "discovery": "EXTERNAL"}}, "adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2024-1135", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2024-04-19T17:32:23.631972Z"}}}], "affected": [{"cpes": ["cpe:2.3:a:benoitc:gunicorn:*:*:*:*:*:*:*:*"], "vendor": "benoitc", "product": "gunicorn", "versions": [{"status": "affected", "version": "*"}], "defaultStatus": "unknown"}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-06-04T17:59:56.871Z"}}, {"title": "CVE Program Container", "references": [{"url": "https://huntr.com/bounties/22158e34-cfd5-41ad-97e0-a780773d96c1", "tags": ["x_transferred"]}, {"url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00027.html", "tags": ["x_transferred"]}, {"url": "https://lists.debian.org/debian-lts-announce/2024/12/msg00018.html"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-12-20T07:02:46.961Z"}}]}, "dataVersion": "5.1"}

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{"cveTags": [], "descriptions": [{"lang": "en", "value": "Gunicorn fails to properly validate Transfer-Encoding headers, leading to HTTP Request Smuggling (HRS) vulnerabilities. By crafting requests with conflicting Transfer-Encoding headers, attackers can bypass security restrictions and access restricted endpoints. This issue is due to Gunicorn's handling of Transfer-Encoding headers, where it incorrectly processes requests with multiple, conflicting Transfer-Encoding headers, treating them as chunked regardless of the final encoding specified. This vulnerability allows for a range of attacks including cache poisoning, session manipulation, and data exposure."}, {"lang": "es", "value": "Gunicorn no puede validar correctamente los encabezados Transfer-Encoding, lo que genera vulnerabilidades de contrabando de solicitudes HTTP (HRS). Al manipular solicitudes con encabezados Transfer-Encoding conflictivos, los atacantes pueden eludir las restricciones de seguridad y acceder a endpoints restringidos. Este problema se debe al manejo que hace Gunicorn de los encabezados Transfer-Encoding, donde procesa incorrectamente solicitudes con m\u00faltiples encabezados Transfer-Encoding conflictivos, trat\u00e1ndolos como fragmentados independientemente de la codificaci\u00f3n final especificada. Esta vulnerabilidad permite una variedad de ataques que incluyen envenenamiento de cach\u00e9, manipulaci\u00f3n de sesiones y exposici\u00f3n de datos."}], "id": "CVE-2024-1135", "lastModified": "2026-04-15T00:35:42.020", "metrics": {"cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "version": "3.0"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "security@huntr.dev", "type": "Secondary"}]}, "published": "2024-04-16T00:15:07.797", "references": [{"source": "security@huntr.dev", "url": "https://huntr.com/bounties/22158e34-cfd5-41ad-97e0-a780773d96c1"}, {"source": "security@huntr.dev", "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00027.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://huntr.com/bounties/22158e34-cfd5-41ad-97e0-a780773d96c1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00027.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2024/12/msg00018.html"}], "sourceIdentifier": "security@huntr.dev", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-444"}], "source": "security@huntr.dev", "type": "Secondary"}]}

{"affected_release": [{"advisory": "RHSA-2024:3781", "cpe": "cpe:/a:redhat:ansible_automation_platform:2.4::el8", "package": "python3x-gunicorn-0:22.0.0-1.el8ap", "product_name": "Red Hat Ansible Automation Platform 2.4 for RHEL 8", "release_date": "2024-06-10T00:00:00Z"}, {"advisory": "RHSA-2024:3781", "cpe": "cpe:/a:redhat:ansible_automation_platform:2.4::el9", "package": "python-gunicorn-0:22.0.0-1.el9ap", "product_name": "Red Hat Ansible Automation Platform 2.4 for RHEL 9", "release_date": "2024-06-10T00:00:00Z"}, {"advisory": "RHSA-2024:3713", "cpe": "cpe:/a:redhat:openshift:4.12::el9", "package": "openshift4/ose-ironic-rhel9:v4.12.0-202406060836.p0.g9a3e609.assembly.stream.el9", "product_name": "Red Hat OpenShift Container Platform 4.12", "release_date": "2024-06-12T00:00:00Z"}, {"advisory": "RHSA-2024:2875", "cpe": "cpe:/a:redhat:openshift:4.13::el9", "package": "openshift4/ose-ironic-rhel9:v4.13.0-202405072309.p0.g881e793.assembly.stream.el9", "product_name": "Red Hat OpenShift Container Platform 4.13", "release_date": "2024-05-23T00:00:00Z"}, {"advisory": "RHSA-2024:3331", "cpe": "cpe:/a:redhat:openshift:4.14::el9", "package": "openshift4/ose-ironic-rhel9:v4.14.0-202405161337.p0.g62ee6d0.assembly.stream.el9", "product_name": "Red Hat OpenShift Container Platform 4.14", "release_date": "2024-05-30T00:00:00Z"}, {"advisory": "RHSA-2024:3327", "cpe": "cpe:/a:redhat:openshift:4.15::el9", "package": "openshift4/ose-ironic-rhel9:v4.15.0-202405161507.p0.ge2415c8.assembly.stream.el9", "product_name": "Red Hat OpenShift Container Platform 4.15", "release_date": "2024-05-29T00:00:00Z"}, {"advisory": "RHSA-2024:4054", "cpe": "cpe:/a:redhat:openstack:16.2::el8", "package": "python-gunicorn-0:19.9.0-11.el8ost", "product_name": "Red Hat OpenStack Platform 16.2", "release_date": "2024-06-24T00:00:00Z"}, {"advisory": "RHSA-2024:2727", "cpe": "cpe:/a:redhat:openstack:17.1::el9", "package": "python-gunicorn-0:20.0.4-7.el9ost", "product_name": "Red Hat OpenStack Platform 17.1 for RHEL 9", "release_date": "2024-05-22T00:00:00Z"}, {"advisory": "RHSA-2024:7987", "cpe": "cpe:/a:redhat:satellite:6.15::el8", "package": "python-gunicorn-0:22.0.0-1.el8pc", "product_name": "Red Hat Satellite 6.15 for RHEL 8", "release_date": "2024-10-10T00:00:00Z"}, {"advisory": "RHSA-2024:7987", "cpe": "cpe:/a:redhat:satellite_capsule:6.15::el8", "package": "python-gunicorn-0:22.0.0-1.el8pc", "product_name": "Red Hat Satellite 6.15 for RHEL 8", "release_date": "2024-10-10T00:00:00Z"}, {"advisory": "RHSA-2025:1335", "cpe": "cpe:/a:redhat:rhui:4::el8", "package": "python-gunicorn-0:22.0.0-1.0.1.el8ui", "product_name": "RHUI 4 for RHEL 8", "release_date": "2025-02-12T00:00:00Z"}], "bugzilla": {"description": "python-gunicorn: HTTP Request Smuggling due to improper validation of Transfer-Encoding headers", "id": "2275280", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2275280"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.5", "cvss3_scoring_vector": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "status": "verified"}, "cwe": "CWE-444", "details": ["Gunicorn fails to properly validate Transfer-Encoding headers, leading to HTTP Request Smuggling (HRS) vulnerabilities. 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