CVE-2026-116268

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.
CVSS

No CVSS.

Configurations

No configuration.

History

28 Oct 2026, 18:17

Type Values Removed Values Added
New CVE

Information

Published : 2026-10-28 18:17

Updated : 2026-10-29 15:11


NVD link : CVE-2026-116268

Mitre link : CVE-2026-116268

CVE.ORG link : CVE-2026-116268


JSON object : View

Products Affected

No product.

CWE
CWE-1333

Inefficient Regular Expression Complexity