{"api_version":"1","generated_at":"2026-10-26T10:18:23+00:00","cve":"CVE-2026-114629","urls":{"html":"https://cve.report/CVE-2026-114629","api":"https://cve.report/api/cve/CVE-2026-114629.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-114629","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-114629"},"summary":{"title":"Web::Simple versions before 0.035 for Perl allocate a buffer sized by the Content-Length header for urlencoded body parameters","description":"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.","state":"PUBLISHED","assigner":"CPANSec","published_at":"2026-10-24 14:16:39","updated_at":"2026-10-24 17:16:26"},"problem_types":["CWE-789","CWE-789 CWE-789 Memory Allocation with Excessive Size Value"],"metrics":[],"references":[{"url":"https://metacpan.org/release/ETHER/Web-Simple-0.035/changes","name":"https://metacpan.org/release/ETHER/Web-Simple-0.035/changes","refsource":"9b29abf9-4ab0-4765-b253-1875cd9b441e","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"http://www.openwall.com/lists/oss-security/2026/10/24/4","name":"http://www.openwall.com/lists/oss-security/2026/10/24/4","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/p5sagit/Web-Simple/commit/7e02c4f6204a2898938d357e6efe6dc2679af695.patch","name":"https://github.com/p5sagit/Web-Simple/commit/7e02c4f6204a2898938d357e6efe6dc2679af695.patch","refsource":"9b29abf9-4ab0-4765-b253-1875cd9b441e","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-114629","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-114629","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[{"source":"CNA","title":"","value":"Upgrade to Web::Simple 0.035 or later, and in the application configure $Web::Dispatch::ParamParser::MAX_BODY_SIZE.","time":"","lang":"en"}],"workarounds":[{"source":"CNA","title":"","value":"For deployments that cannot upgrade but are running behind a reverse proxy, configure the proxy to reject requests above a maxiumum Content-Length.","time":"","lang":"en"}],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"providerMetadata":{"dateUpdated":"2026-10-24T16:06:39.380Z","orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE"},"references":[{"url":"http://www.openwall.com/lists/oss-security/2026/10/24/4"}],"title":"CVE Program Container"}],"cna":{"affected":[{"collectionURL":"https://cpan.org/modules","defaultStatus":"unaffected","modules":["Web::Simple"],"packageName":"Web-Simple","packageURL":"pkg:cpan/Web-Simple","programFiles":["lib/Web/Dispatch/ParamParser.pm"],"programRoutines":[{"name":"Web::Dispatch::ParamParser::get_unpacked_body_from"}],"repo":"https://github.com/p5sagit/Web-Simple","versions":[{"lessThan":"0.035","status":"affected","version":"0","versionType":"custom"}]}],"descriptions":[{"lang":"en","value":"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."}],"problemTypes":[{"descriptions":[{"cweId":"CWE-789","description":"CWE-789 Memory Allocation with Excessive Size Value","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-10-24T13:50:47.616Z","orgId":"9b29abf9-4ab0-4765-b253-1875cd9b441e","shortName":"CPANSec"},"references":[{"tags":["patch"],"url":"https://github.com/p5sagit/Web-Simple/commit/7e02c4f6204a2898938d357e6efe6dc2679af695.patch"},{"tags":["release-notes"],"url":"https://metacpan.org/release/ETHER/Web-Simple-0.035/changes"}],"solutions":[{"lang":"en","value":"Upgrade to Web::Simple 0.035 or later, and in the application configure $Web::Dispatch::ParamParser::MAX_BODY_SIZE."}],"source":{"discovery":"UNKNOWN"},"title":"Web::Simple versions before 0.035 for Perl allocate a buffer sized by the Content-Length header for urlencoded body parameters","workarounds":[{"lang":"en","value":"For deployments that cannot upgrade but are running behind a reverse proxy, configure the proxy to reject requests above a maxiumum Content-Length."}],"x_generator":{"engine":"cpansec-cna-tool 0.1"}}},"cveMetadata":{"assignerOrgId":"9b29abf9-4ab0-4765-b253-1875cd9b441e","assignerShortName":"CPANSec","cveId":"CVE-2026-114629","datePublished":"2026-10-24T13:50:47.616Z","dateReserved":"2026-10-21T21:43:01.842Z","dateUpdated":"2026-10-24T16:06:39.380Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-10-24 14:16:39","lastModifiedDate":"2026-10-24 17:16:26","problem_types":["CWE-789","CWE-789 CWE-789 Memory Allocation with Excessive Size Value"],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"114629","Ordinal":"1","Title":"Web::Simple versions before 0.035 for Perl allocate a buffer siz","CVE":"CVE-2026-114629","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"114629","Ordinal":"1","NoteData":"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.","Type":"Description","Title":"Web::Simple versions before 0.035 for Perl allocate a buffer siz"}]}}}