CVE-2026-88815

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 );

CVSS v3 6.2 MEDIUM

6.2^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.5 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/perl5-dbi/dbi/commit/e5ad87e5602da995d28b4d65df222368b58d6702.patch
https://github.com/perl5-dbi/dbi/security/advisories/GHSA-c8vq-w3wr-6979
https://metacpan.org/release/HMBRAND/DBI-1.654/changes
http://www.openwall.com/lists/oss-security/2026/09/28/12
https://github.com/perl5-dbi/dbi/security/advisories/GHSA-c8vq-w3wr-6979

Configurations

No configuration.

History

30 Sep 2026, 20:17

Type	Values Removed	Values Added
References	~~() https://github.com/perl5-dbi/dbi/security/advisories/GHSA-c8vq-w3wr-6979 -~~	() https://github.com/perl5-dbi/dbi/security/advisories/GHSA-c8vq-w3wr-6979 -
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 6.2

28 Sep 2026, 19:16

Type	Values Removed	Values Added
References		() http://www.openwall.com/lists/oss-security/2026/09/28/12 -

28 Sep 2026, 17:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-28 17:17

Updated : 2026-09-30 20:17

NVD link : CVE-2026-88815

Mitre link : CVE-2026-88815

CVE.ORG link : CVE-2026-88815

JSON object : View

Products Affected

No product.

CWE

CWE-843

Access of Resource Using Incompatible Type ('Type Confusion')

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