CVE-2026-116269

{"id": "CVE-2026-116269", "cveTags": [], "metrics": {}, "affected": [{"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "affectedData": [{"repo": "https://salsa.debian.org/dskoll/mime-tools", "modules": ["MIME::Field::ParamVal"], "versions": [{"status": "affected", "version": "0", "lessThan": "5.521", "versionType": "custom"}], "packageURL": "pkg:cpan/MIME-tools", "packageName": "MIME-tools", "programFiles": ["lib/MIME/Field/ParamVal.pm", "lib/MIME/WordDecoder.pm", "lib/MIME/Head.pm"], "collectionURL": "https://cpan.org/modules", "defaultStatus": "unaffected", "programRoutines": [{"name": "MIME::Field::ParamVal::parse_params"}, {"name": "MIME::WordDecoder::decode"}, {"name": "MIME::Head::recommended_filename"}]}]}], "published": "2026-10-28T18:17:13.363", "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-436"}]}], "descriptions": [{"lang": "en", "value": "MIME::Field::ParamVal versions before 5.521 for Perl turn an RFC 2231 filename with a hyphenated language tag into an empty recommended filename.\n\nA parameter such as filename*=utf-8'en-US'payload.exe is converted to an encoded word with the language tag appended to the charset. The decoder strips the language suffix only when it is a single word, so it cannot resolve the charset UTF-8*EN-US and returns an empty string. The recommended_filename() method returns that empty string rather than falling back to the name parameter.\n\nOther mail readers return payload.exe. A remote sender can get an attachment past a policy that checks file extensions on the recommended filename."}], "lastModified": "2026-10-29T15:11:53.000", "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e"}