CVE-2026-116269

MIME::Field::ParamVal versions before 5.521 for Perl turn an RFC 2231 filename with a hyphenated language tag into an empty recommended filename. A parameter such as filename=utf-8'en-US'payload.exe is converted to an encoded word with the language tag appended to the charset. The decoder strips...

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...

CVE-2026-116272

MIME::Field::ParamVal versions before 5.521 for Perl do not flag a duplicate boundary parameter whose name contains a nested comment. A parameter written boundaryc="A" or boundary="A" is stored under that literal name rather than as boundary. A second boundary parameter is then not reported as a...

CVE-2026-116264

MIME::Field::ParamVal versions before 5.521 for Perl allow one invalid Content-Type parameter to hide the parameters after it, including the multipart boundary. Parameter parsing stops at the first parameter whose name it cannot read, such as x:y=1 or a name containing an 8-bit byte, and drops...

CVE-2026-116265

MIME::Field::ParamVal versions before 5.521 for Perl do not flag an ambiguous multipart boundary written as RFC 2231 continuations. The boundary ambiguity checks look only at a plain boundary= parameter, and a boundary split into RFC 2231 sections boundary0=, boundary1= and so on is joined after...

EUVD-2026-112305

MIME::Field::ParamVal versions before 5.521 for Perl do not flag a duplicate boundary parameter whose name contains a nested comment. A parameter written boundaryc="A" or boundary="A" is stored under that literal name rather than as boundary. A second boundary parameter is then not reported as a...

CVE-2026-116272 MIME::Field::ParamVal versions before 5.521 for Perl do not flag a duplicate boundary parameter whose name contains a nested comment

MIME::Field::ParamVal versions before 5.521 for Perl do not flag a duplicate boundary parameter whose name contains a nested comment. A parameter written boundaryc="A" or boundary="A" is stored under that literal name rather than as boundary. A second boundary parameter is then not reported as a...

CVE-2026-116272

The MIME::Field::ParamVal component in Perl (versions before 5.521 ) fails to flag duplicate boundary parameters when the name contains a nested comment, such as boundary((c))="A". This causes the parameter to be stored under its literal name, allowing a second boundary parameter to go undetected...

EUVD-2026-112301

MIME::Field::ParamVal versions before 5.521 for Perl turn an RFC 2231 filename with a hyphenated language tag into an empty recommended filename. A parameter such as filename=utf-8'en-US'payload.exe is converted to an encoded word with the language tag appended to the charset. The decoder strips...

CVE-2026-116269 MIME::Field::ParamVal versions before 5.521 for Perl turn an RFC 2231 filename with a hyphenated language tag into an empty recommended filename

MIME::Field::ParamVal versions before 5.521 for Perl turn an RFC 2231 filename with a hyphenated language tag into an empty recommended filename. A parameter such as filename=utf-8'en-US'payload.exe is converted to an encoded word with the language tag appended to the charset. The decoder strips...

CVE-2026-116269

The MIME::Field::ParamVal module in Perl (versions before 5.521 ) contains a vulnerability where certain RFC 2231 filenames with hyphenated language tags are incorrectly processed. Specifically, when a parameter like filename*=utf-8'en-US'payload.exe is parsed, the decoder fails to resolve the co...

EUVD-2026-112300

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...

CVE-2026-116268 MIME::Field::ParamVal versions before 5.521 for Perl allow CPU exhaustion via unclosed comments in header parameters

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...

CVE-2026-116268

The MIME::Field::ParamVal component in Perl (versions before 5.521 ) is vulnerable to CPU exhaustion due to inefficient regex complexity (CWE-1333 ). The issue arises when parsing Content-Type and Content-Disposition parameters; the parser scans from each ( to the next ) . If a field contains a (...

EUVD-2026-112297

MIME::Field::ParamVal versions before 5.521 for Perl do not flag an ambiguous multipart boundary written as RFC 2231 continuations. The boundary ambiguity checks look only at a plain boundary= parameter, and a boundary split into RFC 2231 sections boundary0=, boundary1= and so on is joined after...

CVE-2026-116265 MIME::Field::ParamVal versions before 5.521 for Perl do not flag an ambiguous multipart boundary written as RFC 2231 continuations

MIME::Field::ParamVal versions before 5.521 for Perl do not flag an ambiguous multipart boundary written as RFC 2231 continuations. The boundary ambiguity checks look only at a plain boundary= parameter, and a boundary split into RFC 2231 sections boundary0=, boundary1= and so on is joined after...

CVE-2026-116265

The MIME::Field::ParamVal component in Perl (versions before 5.521 ) fails to flag ambiguous multipart boundaries written as RFC 2231 continuations. The root cause is that boundary ambiguity checks only examine plain boundary= parameters, while RFC 2231 sections (e.g., boundary*0=, boundary*1=) a...

EUVD-2026-112293

MIME::Field::ParamVal versions before 5.521 for Perl allow one invalid Content-Type parameter to hide the parameters after it, including the multipart boundary. Parameter parsing stops at the first parameter whose name it cannot read, such as x:y=1 or a name containing an 8-bit byte, and drops...

CVE-2026-116264 MIME::Field::ParamVal versions before 5.521 for Perl allow one invalid Content-Type parameter to hide the parameters after it, including the multipart boundary

MIME::Field::ParamVal versions before 5.521 for Perl allow one invalid Content-Type parameter to hide the parameters after it, including the multipart boundary. Parameter parsing stops at the first parameter whose name it cannot read, such as x:y=1 or a name containing an 8-bit byte, and drops...

CVE-2026-116264

The MIME::Field::ParamVal component in the MIME-tools project (for Perl) is vulnerable in versions prior to 5.521 . A remote sender can provide an invalid Content-Type parameter (e.g., containing an 8-bit byte or an unreadable name like x:y=1), causing the parser to stop and drop all subsequent p...