CVE-2026-88815 Details
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 );
A segmentation fault vulnerability has been identified in the DBI module for Perl, affecting versions prior to 1.654. The issue arises in the 'sql_type_cast_svpv' function, where numeric values are incorrectly handled as strings when casting to SQL_NUMERIC. This mismanagement allows 'grok_number' to read from an invalid memory address, leading to a crash. The vulnerability can be exploited by calling 'DBI::sql_type_cast' with a numeric scalar, such as an integer or floating-point value.
Users are advised to upgrade to DBI version 1.654 or later, where this vulnerability has been fixed.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Sep 28, 2026CISA-ADP
Assessed Sep 30, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/perl5-dbi/dbi/security/advisories/GHSA-c8vq-w3wr-6979 | CISA-ADP | AdvisoryExploitRemedyVendor |
| https://github.com/perl5-dbi/dbi/commit/e5ad87e5602da995d28b4d65df222368b58d6702.patch | CPANSec | Source CodeVendor |
| https://github.com/perl5-dbi/dbi/security/advisories/GHSA-c8vq-w3wr-6979 | CPANSec | AdvisoryExploitRemedyVendor |
| https://metacpan.org/release/HMBRAND/DBI-1.654/changes | CPANSec | Release NotesVendor |
| http://www.openwall.com/lists/oss-security/2026/09/28/12 | CVE | AdvisoryMailing ListRemedy |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-843 | Access of Resource Using Incompatible Type ('Type Confusion') | CPANSec |
Affected Products
| Product | Versions |
|---|---|
| DBI | <= 1.653 |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 30, 2026 | CVE Modified | CISA-ADP |
| Sep 28, 2026 | CVE Modified | CVE |
| Sep 28, 2026 | New CVE Received | CPANSec |