CVE-2026-88815

Name	CVE-2026-88815
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 );
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-4798-1
Debian Bugs	1149042

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
libdbi-perl (PTS)	bookworm	1.643-4+deb12u1	vulnerable
	bookworm (security)	1.643-4+deb12u3	fixed
	trixie (security), trixie	1.652-2~deb13u1	vulnerable
	forky, sid	1.655-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
libdbi-perl	source	bookworm	1.643-4+deb12u3		DLA-4798-1
libdbi-perl	source	(unstable)	1.654-1			1149042

Notes

[trixie] - libdbi-perl <no-dsa> (Minor issue)
https://lists.security.metacpan.org/cve-announce/msg/43915930/
Fixed by: https://github.com/perl5-dbi/dbi/commit/e5ad87e5602da995d28b4d65df222368b58d6702 (1.654)