CVE-2026-116273 Affecting libmime-tools-perl package, versions <5.522-1


Severity

Recommended
low

Based on default assessment until relevant scores are available.

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  • Snyk IDSNYK-DEBIANUNSTABLE-LIBMIMETOOLSPERL-21758168
  • published28 Oct 2026
  • disclosed28 Oct 2026

Introduced: 28 Oct 2026

NewCVE-2026-116273  (opens in a new tab)

How to fix?

Upgrade Debian:unstable libmime-tools-perl to version 5.522-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libmime-tools-perl package and not the libmime-tools-perl package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

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.