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CVE-2026-116273

MIME::Parser versions before 5.521 for Perl set no limit on the number of message parts by default, allowing memory exhaustion.

Impact

MIME::Parser versions before 5.521 for Perl set no limit on the number of message parts by default, allowing memory exhaustion. The max_parts option defaulted to -1, which disables the limit, so a parser created with default settings builds an entity for every part however many a message has. Version 5.521 sets max_parts to 1000 and max_depth to 64 by default. Setting either to -1 still removes the limit.

Affected products

ProductAffected versions
MIME::Parser
before 5.521

Versions were read from the advisory text. No structured product data has been published for this record yet.

Weakness classification

References