CVE-2026-116270: отказ на услуга

Описание

Оригинално описание

MIME::Words versions before 5.521 for Perl allow memory exhaustion via repeated "=?" sequences in decode_mimewords. For 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. From 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.

Засегнати продукти

• : преди 5.521

Вид слабост

• CWE-407 Неефективна алгоритмична сложност

История

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-116270
• https://nvd.nist.gov/vuln/detail/CVE-2026-116270
• https://metacpan.org/release/DSKOLL/MIME-tools-5.521/changes