{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-40560", "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "state": "PUBLISHED", "assignerShortName": "CPANSec", "dateReserved": "2026-04-14T11:35:53.644Z", "datePublished": "2026-04-28T23:46:37.780Z", "dateUpdated": "2026-04-28T23:52:21.284Z"}, "containers": {"cna": {"affected": [{"collectionURL": "https://cpan.org/modules", "defaultStatus": "unaffected", "packageName": "Starman", "product": "Starman", "programFiles": ["lib/Starman/Server.pm"], "programRoutines": [{"name": "Starman::Server::_prepare_env"}], "repo": "https://github.com/miyagawa/Starman", "vendor": "MIYAGAWA", "versions": [{"lessThan": "0.4018", "status": "affected", "version": "0", "versionType": "custom"}]}], "credits": [{"lang": "en", "type": "finder", "value": "CPANSec"}], "descriptions": [{"lang": "en", "value": "Starman versions before 0.4018 for Perl allows HTTP Request Smuggling via Improper Header Precedence.\n\nStarman incorrectly prioritizes \"Content-Length\" over \"Transfer-Encoding: chunked\" when both headers are present in an HTTP request. Per RFC 7230 3.3.3, Transfer-Encoding must take precedence.\n\nAn attacker could exploit this to smuggle malicious HTTP requests via a front-end reverse proxy."}], "impacts": [{"capecId": "CAPEC-33", "descriptions": [{"lang": "en", "value": "CAPEC-33 HTTP Request Smuggling"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-444", "description": "CWE-444 Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "shortName": "CPANSec", "dateUpdated": "2026-04-28T23:52:21.284Z"}, "references": [{"tags": ["patch"], "url": "https://github.com/miyagawa/Starman/commit/ced205f0805027e9d9c0731f8c40b104220604ed.patch"}, {"tags": ["release-notes"], "url": "https://metacpan.org/release/MIYAGAWA/Starman-0.4018/changes"}, {"url": "https://datatracker.ietf.org/doc/html/rfc7230#section-3.3.3"}], "solutions": [{"lang": "en", "value": "Upgrade to version 0.4018"}], "source": {"discovery": "UNKNOWN"}, "timeline": [{"lang": "en", "time": "2027-04-12T00:00:00.000Z", "value": "Issue identified by CPANSec"}, {"lang": "en", "time": "2027-04-27T00:00:00.000Z", "value": "Issue reported to software maintainer"}, {"lang": "en", "time": "2027-04-27T00:00:00.000Z", "value": "Fix committed to public Github repository"}, {"lang": "en", "time": "2027-04-27T00:00:00.000Z", "value": "Updated version uploaded to CPAN"}], "title": "Starman versions before 0.4018 for Perl allows HTTP Request Smuggling via Improper Header Precedence", "x_generator": {"engine": "cpansec-cna-tool 0.1"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "Starman versions before 0.4018 for Perl allows HTTP Request Smuggling via Improper Header Precedence.\n\nStarman incorrectly prioritizes \"Content-Length\" over \"Transfer-Encoding: chunked\" when both headers are present in an HTTP request. Per RFC 7230 3.3.3, Transfer-Encoding must take precedence.\n\nAn attacker could exploit this to smuggle malicious HTTP requests via a front-end reverse proxy."}], "id": "CVE-2026-40560", "lastModified": "2026-04-29T00:16:03.927", "metrics": {}, "published": "2026-04-29T00:16:03.927", "references": [{"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "url": "https://datatracker.ietf.org/doc/html/rfc7230#section-3.3.3"}, {"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "url": "https://github.com/miyagawa/Starman/commit/ced205f0805027e9d9c0731f8c40b104220604ed.patch"}, {"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "url": "https://metacpan.org/release/MIYAGAWA/Starman-0.4018/changes"}], "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-444"}], "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "type": "Secondary"}]}

{}

{}