CVE-2026-116270

{"id": "CVE-2026-116270", "cveTags": [], "metrics": {}, "affected": [{"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "affectedData": [{"repo": "https://salsa.debian.org/dskoll/mime-tools", "modules": ["MIME::Words"], "versions": [{"status": "affected", "version": "0", "lessThan": "5.521", "versionType": "custom"}], "packageURL": "pkg:cpan/MIME-tools", "packageName": "MIME-tools", "programFiles": ["lib/MIME/Words.pm", "lib/MIME/Head.pm"], "collectionURL": "https://cpan.org/modules", "defaultStatus": "unaffected", "programRoutines": [{"name": "MIME::Words::decode_mimewords"}, {"name": "MIME::Head::multipart_boundary"}]}]}], "published": "2026-10-28T18:17:13.470", "references": [{"url": "https://metacpan.org/release/DSKOLL/MIME-tools-5.521/changes", "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "description": [{"lang": "en", "value": "CWE-407"}]}], "descriptions": [{"lang": "en", "value": "MIME::Words versions before 5.521 for Perl allow memory exhaustion via repeated \"=?\" sequences in decode_mimewords.\n\nFor each \"=?\" that does not start a complete encoded word, decode_mimewords appends an error message containing the whole input string to $@. A boundary of 8,000 \"=?\" pairs (16,000 bytes) adds 8,000 copies of itself to $@, about 128 MB.\n\nFrom version 5.518, MIME::Parser decodes every multipart boundary this way, so a remote sender can exhaust the memory of the parsing process with one Content-Type header."}], "lastModified": "2026-10-29T15:11:53.000", "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e"}