Cloudanix VulnDB

CVE-2026-116268

None

CVSS

—

EPSS

0.2%

Published

Oct 28, 2026

CISA due date

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The record

MIME::Field::ParamVal versions before 5.521 for Perl allow CPU exhaustion via unclosed comments in header parameters. The comment pattern used to parse Content-Type and Content-Disposition parameters scans from each "(" to the next ")". In a field with no ")", every "(" scans to the end of the header and fails, so parsing takes time quadratic in the header length. The field is parsed again on each attribute lookup, several times per MIME entity. A 40 KB header takes about 7 seconds to parse once.

Affected packages

Ecosystem Package Introduced Fixed

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