CVE-2026-88815 (GCVE-0-2026-88815)
Vulnerability from cvelistv5 – Published: 2026-09-28 16:04 – Updated: 2026-09-28 18:10
VLAI
EPSS
VEX
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')
Assigner
References
4 references
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"lang": "en",
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"title": "DBI versions before 1.654 for Perl incorrectly treat numeric values as strings in sql_type_cast_svpv",
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"dateReserved": "2026-09-10T08:47:49.901Z",
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}
],
"id": "CVE-2026-88815",
"lastModified": "2026-09-28T19:16:50.483",
"metrics": {},
"published": "2026-09-28T17:17:52.070",
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"product_status:known_affected": "10",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "perl-DBI: perl-DBI: Denial of Service via invalid memory read during numeric type casting",
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Sightings
| Author | Source | Type | Date | Other |
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Nomenclature
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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