CVE-2026-88815 (GCVE-0-2026-88815)

Vulnerability from cvelistv5 – Published: 2026-09-28 16:04 – Updated: 2026-09-28 18:10
VLAI
Title
DBI versions before 1.654 for Perl incorrectly treat numeric values as strings in sql_type_cast_svpv
Summary
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 );
Severity
No CVSS data available.
CWE
  • CWE-843 - Access of Resource Using Incompatible Type ('Type Confusion')
Impacted products
Vendor Product Version CPE status
Affected: 0 , < 1.654 (custom)
Show details on NVD website

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        }
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          "url": "https://github.com/perl5-dbi/dbi/commit/e5ad87e5602da995d28b4d65df222368b58d6702.patch"
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          "url": "https://metacpan.org/release/HMBRAND/DBI-1.654/changes"
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          "value": "Upgrade to DBI 1.654 or later."
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    "datePublished": "2026-09-28T16:04:22.057Z",
    "dateReserved": "2026-09-10T08:47:49.901Z",
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            "value": "DBI versions before 1.654 for Perl incorrectly treat numeric values as strings in sql_type_cast_svpv.\n\nWhen 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.\n\nThis is reachable in Perl using the sql_type_cast function:\n\n  my $num = 42;\n  DBI::sql_type_cast( $num, DBI::SQL_NUMERIC, 0 );"
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        "id": "CVE-2026-88815",
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      "title": "perl-DBI: perl-DBI: Denial of Service via invalid memory read during numeric type casting",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-88815.json",
      "version": "3"
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}



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