{"id":"CVE-2026-116273","title":"MIME::Parser versions before 5.521 for Perl set no limit on the number of message parts by default, allowing memory exhaustion","summary":"MIME::Parser versions before 5.521 for Perl set no limit on the number of message parts by default, allowing memory exhaustion.\n\nThe max_parts option defaulted to -1, which disables the limit, so a parser created with default settings bu…","severity":"none","cwe":["CWE-1188","CWE-770"],"product":"MIME-tools","affected":["MIME-tools < 5.521"],"published":"2026-10-28","updated":"2026-10-28","sourceUpdated":"2026-10-28T17:34:44.660Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-116273","references":[{"url":"https://metacpan.org/release/DSKOLL/MIME-tools-5.521/changes"}],"tags":["cve.org"],"ingestedAt":"2026-10-28T18:15:46.380Z","slug":"CVE-2026-116273","body":"## Overview\n\nMIME::Parser versions before 5.521 for Perl set no limit on the number of message parts by default, allowing memory exhaustion.\n\nThe 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.\n\nVersion 5.521 sets max_parts to 1000 and max_depth to 64 by default. Setting either to -1 still removes the limit.\n\n## Affected\n\n- `MIME-tools < 5.521`\n\n## Remediation\n\nUpgrade to MIME-tools 5.521 or later.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}