{ "document": { "category": "csaf_security_advisory", "csaf_version": "2.0", "distribution": { "tlp": { "label": "WHITE", "url": "https://www.first.org/tlp/" } }, "lang": "en", "notes": [ { "category": "description", "text": "Web::Simple versions before 0.035 for Perl allocate a buffer sized by the Content-Length header for urlencoded body parameters.\n\nWeb::Dispatch::ParamParser::get_unpacked_body_from reads an application/x-www-form-urlencoded body using a single read call, with no cap and the return value ignored. Perl's read grows the buffer to the requested length before reading, so the declared Content-Length determines the allocation.\n\nAn attacker can trigger this through any route whose dispatch specification has a % body-parameter match, such as sub (POST + %name=), sending a Content-Length far larger than the body actually sent. No authentication is involved.", "title": "Vulnerability Description" } ], "publisher": { "category": "other", "contact_details": "gdt@cpan.org", "name": "giterlizzi", "namespace": "https://github.com/giterlizzi/" }, "references": [ { "category": "self", "summary": "CPANSA-Web-Simple-2026-114629 JSON", "url": "https://raw.githubusercontent.com/giterlizzi/perl-CPANSA-CSAF/develop/csaf/white/2026/cpansa-web-simple-2026-114629.json" }, { "category": "external", "summary": "https://github.com/p5sagit/Web-Simple/commit/7e02c4f6204a2898938d357e6efe6dc2679af695.patch", "url": "https://github.com/p5sagit/Web-Simple/commit/7e02c4f6204a2898938d357e6efe6dc2679af695.patch" }, { "category": "external", "summary": "https://metacpan.org/release/ETHER/Web-Simple-0.035/changes", "url": "https://metacpan.org/release/ETHER/Web-Simple-0.035/changes" }, { "category": "external", "summary": "http://www.openwall.com/lists/oss-security/2026/10/24/4", "url": "http://www.openwall.com/lists/oss-security/2026/10/24/4" }, { "category": "external", "summary": "CVE-2026-114629 (NVD)", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-114629" } ], "title": "Web-Simple vulnerability", "tracking": { "current_release_date": "2026-10-24T00:00:00", "generator": { "engine": { "name": "CSAF Perl Toolkit", "version": "0.26" } }, "id": "CPANSA-Web-Simple-2026-114629", "initial_release_date": "2026-10-24T00:00:00", "revision_history": [ { "date": "2026-10-24T00:00:00", "number": "1", "summary": "First release" } ], "status": "final", "version": "1" } }, "product_tree": { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:cpan/<0.035", "product": { "name": "Web-Simple less than 0.035", "product_id": "CSAFPID-0001", "product_identification_helper": { "purl": "pkg:cpan/Web-Simple" } } }, { "category": "product_version_range", "name": "vers:cpan/>=0.035", "product": { "name": "Web-Simple greater than or equal 0.035", "product_id": "CSAFPID-0002", "product_identification_helper": { "purl": "pkg:cpan/Web-Simple" } } } ], "category": "product_name", "name": "Web-Simple" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-114629", "cwe": { "id": "CWE-789", "name": "Memory Allocation with Excessive Size Value" }, "notes": [ { "category": "description", "text": "Web::Simple versions before 0.035 for Perl allocate a buffer sized by the Content-Length header for urlencoded body parameters.\n\nWeb::Dispatch::ParamParser::get_unpacked_body_from reads an application/x-www-form-urlencoded body using a single read call, with no cap and the return value ignored. Perl's read grows the buffer to the requested length before reading, so the declared Content-Length determines the allocation.\n\nAn attacker can trigger this through any route whose dispatch specification has a % body-parameter match, such as sub (POST + %name=), sending a Content-Length far larger than the body actually sent. No authentication is involved.", "title": "Vulnerability Description" } ], "product_status": { "fixed": [ "CSAFPID-0002" ], "known_affected": [ "CSAFPID-0001" ] } } ] }