{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-120639", "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "state": "PUBLISHED", "assignerShortName": "CPANSec", "dateReserved": "2026-11-02T17:40:59.077Z", "datePublished": "2026-11-03T23:40:30.552Z", "dateUpdated": "2026-11-03T23:40:30.552Z"}, "containers": {"cna": {"affected": [{"collectionURL": "https://cpan.org/modules", "defaultStatus": "unaffected", "modules": ["CGI"], "packageName": "CGI", "packageURL": "pkg:cpan/CGI", "programFiles": ["lib/CGI.pm", "lib/CGI/Push.pm"], "programRoutines": [{"name": "CGI::header"}, {"name": "CGI::multipart_start"}, {"name": "CGI::Push::do_push"}], "repo": "https://github.com/leejo/CGI.pm", "versions": [{"lessThan": "5.00", "status": "affected", "version": "0", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "CGI versions before 5.00 for Perl allow HTTP header injection via entity decoding after the newline check in header and unchecked values in multipart_start and do_push.\n\nWith autoEscape off, header decodes HTML entities in extra header values after its newline check, so an encoded CR or LF reaches the response. multipart_start does not check header values for newlines, and do_push does not check the type it prints in each part.\n\nAn application that passes request data into these header values can be made to add headers or split the response."}], "problemTypes": [{"descriptions": [{"cweId": "CWE-113", "description": "CWE-113 Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting')", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "shortName": "CPANSec", "dateUpdated": "2026-11-03T23:40:30.552Z"}, "references": [{"tags": ["technical-description"], "url": "https://metacpan.org/release/LEEJO/CGI-4.72/source/lib/CGI.pm"}, {"tags": ["release-notes"], "url": "https://metacpan.org/release/LEEJO/CGI-5.00/changes"}, {"tags": ["patch"], "url": "https://github.com/leejo/CGI.pm/commit/69955309d371c8093d11cf12e3ddef491537ffad.patch"}, {"tags": ["patch"], "url": "https://github.com/leejo/CGI.pm/commit/7733c2753f4f240012097507cda2b6e87ae46db4.patch"}], "solutions": [{"lang": "en", "value": "Upgrade to CGI 5.00 or later."}], "source": {"discovery": "UNKNOWN"}, "title": "CGI versions before 5.00 for Perl allow HTTP header injection via entity decoding after the newline check in header and unchecked values in multipart_start and do_push", "x_generator": {"engine": "cpansec-cna-tool 0.1"}}}}

{}

{"affected": [{"affectedData": [{"collectionURL": "https://cpan.org/modules", "defaultStatus": "unaffected", "modules": ["CGI"], "packageName": "CGI", "packageURL": "pkg:cpan/CGI", "programFiles": ["lib/CGI.pm", "lib/CGI/Push.pm"], "programRoutines": [{"name": "CGI::header"}, {"name": "CGI::multipart_start"}, {"name": "CGI::Push::do_push"}], "repo": "https://github.com/leejo/CGI.pm", "versions": [{"lessThan": "5.00", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "CGI versions before 5.00 for Perl allow HTTP header injection via entity decoding after the newline check in header and unchecked values in multipart_start and do_push.\n\nWith autoEscape off, header decodes HTML entities in extra header values after its newline check, so an encoded CR or LF reaches the response. multipart_start does not check header values for newlines, and do_push does not check the type it prints in each part.\n\nAn application that passes request data into these header values can be made to add headers or split the response."}], "id": "CVE-2026-120639", "lastModified": "2026-11-04T18:42:35.810", "metrics": {}, "published": "2026-11-04T00:17:25.263", "references": [{"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "url": "https://github.com/leejo/CGI.pm/commit/69955309d371c8093d11cf12e3ddef491537ffad.patch"}, {"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "url": "https://github.com/leejo/CGI.pm/commit/7733c2753f4f240012097507cda2b6e87ae46db4.patch"}, {"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "url": "https://metacpan.org/release/LEEJO/CGI-4.72/source/lib/CGI.pm"}, {"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "url": "https://metacpan.org/release/LEEJO/CGI-5.00/changes"}], "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-113"}], "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "type": "Secondary"}]}

{"bugzilla": {"description": "perl-cgi: perl-cgi: HTTP header injection via improper newline validation", "id": "2566606", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2566606"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N", "status": "draft"}, "cwe": "CWE-93", "details": ["A flaw was found in perl-cgi, where it fails to properly validate newline characters when generating HTTP headers. When an application passes untrusted input into header fields, entity-encoded newlines or unvalidated parameters can bypass sanitization checks. A remote attacker could exploit this vulnerability to perform HTTP header injection or HTTP response splitting, potentially leading to cache poisoning, cross-site scripting (XSS), or session hijacking."], "name": "CVE-2026-120639", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "perl-CGI", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "perl-CGI", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "perl-CGI", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "perl-CGI", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-11-03T23:40:30Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-120639\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-120639\nhttps://github.com/leejo/CGI.pm/commit/69955309d371c8093d11cf12e3ddef491537ffad.patch\nhttps://github.com/leejo/CGI.pm/commit/7733c2753f4f240012097507cda2b6e87ae46db4.patch\nhttps://metacpan.org/release/LEEJO/CGI-4.72/source/lib/CGI.pm\nhttps://metacpan.org/release/LEEJO/CGI-5.00/changes"], "threat_severity": "Moderate"}

{"created": "2026-11-04T08:30:12.769599+00:00", "updated": "2026-11-04T14:15:15.826102+00:00", "vendors": []}