{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-33870", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-03-24T15:10:05.678Z", "datePublished": "2026-03-27T19:54:15.586Z", "dateUpdated": "2026-03-27T19:54:15.586Z"}, "containers": {"cna": {"title": "Netty: HTTP Request Smuggling via Chunked Extension Quoted-String Parsing", "problemTypes": [{"descriptions": [{"cweId": "CWE-444", "lang": "en", "description": "CWE-444: Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/netty/netty/security/advisories/GHSA-pwqr-wmgm-9rr8", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/netty/netty/security/advisories/GHSA-pwqr-wmgm-9rr8"}, {"name": "https://w4ke.info/2025/06/18/funky-chunks.html", "tags": ["x_refsource_MISC"], "url": "https://w4ke.info/2025/06/18/funky-chunks.html"}, {"name": "https://w4ke.info/2025/10/29/funky-chunks-2.html", "tags": ["x_refsource_MISC"], "url": "https://w4ke.info/2025/10/29/funky-chunks-2.html"}, {"name": "https://www.rfc-editor.org/rfc/rfc9110", "tags": ["x_refsource_MISC"], "url": "https://www.rfc-editor.org/rfc/rfc9110"}], "affected": [{"vendor": "netty", "product": "netty", "versions": [{"version": "< 4.1.132.Final", "status": "affected"}, {"version": ">= 4.2.0.Alpha1, < 4.2.10.Final", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-03-27T19:54:15.586Z"}, "descriptions": [{"lang": "en", "value": "Netty is an asynchronous, event-driven network application framework. In versions prior to 4.1.132.Final and 4.2.10.Final, Netty incorrectly parses quoted strings in HTTP/1.1 chunked transfer encoding extension values, enabling request smuggling attacks. Versions 4.1.132.Final and 4.2.10.Final fix the issue."}], "source": {"advisory": "GHSA-pwqr-wmgm-9rr8", "discovery": "UNKNOWN"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "Netty is an asynchronous, event-driven network application framework. In versions prior to 4.1.132.Final and 4.2.10.Final, Netty incorrectly parses quoted strings in HTTP/1.1 chunked transfer encoding extension values, enabling request smuggling attacks. Versions 4.1.132.Final and 4.2.10.Final fix the issue."}], "id": "CVE-2026-33870", "lastModified": "2026-03-27T20:16:34.663", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-03-27T20:16:34.663", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/netty/netty/security/advisories/GHSA-pwqr-wmgm-9rr8"}, {"source": "security-advisories@github.com", "url": "https://w4ke.info/2025/06/18/funky-chunks.html"}, {"source": "security-advisories@github.com", "url": "https://w4ke.info/2025/10/29/funky-chunks-2.html"}, {"source": "security-advisories@github.com", "url": "https://www.rfc-editor.org/rfc/rfc9110"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-444"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{}