DBI versions before 1.654 for Perl incorrectly treat numeric values as strings in sql_type_cast_svpv.

When casting to SQL_NUMERIC, sql_type_cast_svpv passes the string pointer and length of the SV to grok_number without stringifying it first. An integer (IV) or floating-point (NV) value has no valid string pointer, so grok_number reads from an invalid address, triggering a segmentation fault.

This is reachable in Perl using the sql_type_cast function:

my $num = 42;
DBI::sql_type_cast( $num, DBI::SQL_NUMERIC, 0 );

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Fixes

Solution

Upgrade to DBI 1.654 or later.


Workaround

No workaround given by the vendor.

History

Mon, 28 Sep 2026 19:30:00 +0000

Type Values Removed Values Added
References

Mon, 28 Sep 2026 16:30:00 +0000

Type Values Removed Values Added
Description DBI versions before 1.654 for Perl incorrectly treat numeric values as strings in sql_type_cast_svpv. When casting to SQL_NUMERIC, sql_type_cast_svpv passes the string pointer and length of the SV to grok_number without stringifying it first. An integer (IV) or floating-point (NV) value has no valid string pointer, so grok_number reads from an invalid address, triggering a segmentation fault. This is reachable in Perl using the sql_type_cast function: my $num = 42; DBI::sql_type_cast( $num, DBI::SQL_NUMERIC, 0 );
Title DBI versions before 1.654 for Perl incorrectly treat numeric values as strings in sql_type_cast_svpv
Weaknesses CWE-843
References

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cve-icon MITRE

Status: PUBLISHED

Assigner: CPANSec

Published:

Updated: 2026-09-28T18:10:34.583Z

Reserved: 2026-09-10T08:47:49.901Z

Link: CVE-2026-88815

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-28T17:17:52.070

Modified: 2026-09-28T19:16:50.483

Link: CVE-2026-88815

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-28T17:45:04Z

Weaknesses