CVE-2026-116266: друго

Описание

Оригинално описание

MIME::Head versions from 5.518 before 5.521 for Perl decode a partly encoded multipart boundary without flagging the parse as ambiguous. The multipart_boundary() method decodes RFC 2047 encoded words anywhere in the boundary, but the ambiguity check only fires when the whole value is one encoded word. A boundary such as abc=?us-ascii?Q?def?= is used as abcdef, and ambiguous_content() returns false. Encoded words are not allowed in parameters, so other mail readers split the message on the literal value. A remote sender can hide an attachment from a filter that relies on ambiguous_content() while the recipient's mail client shows it.

Засегнати продукти

• : 5.518 преди 5.521

Вид слабост

• CWE-436 Конфликт при интерпретация

История

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-116266
• https://nvd.nist.gov/vuln/detail/CVE-2026-116266
• https://metacpan.org/release/DSKOLL/MIME-tools-5.521/changes