CVE-2026-88816

CVE-2026-88816 · DBI versions before 1.654 for Perl incorrectly treat numeric values as strings in FetchHashKeyName

This page contains facts from public vulnerability sources. Check the original advisory before updating.

DBI versions before 1.654 for Perl incorrectly treat numeric values as strings in FetchHashKeyName. fetchrow_hashref uses the string pointer of the FetchHashKeyName attribute as the key name without stringifying it first. When FetchHashKeyName has been set to an integer (IV) or floating-point (NV) value, that pointer is invalid, so reading the key name triggers a segmentation fault. This can be triggered with the following code: my $dbh = DBI->connect( "dbi:ExampleP:", "", "", { RaiseError => 0, PrintError => 0 } ); $dbh->{FetchHashKeyName} = 42; my $sth = $dbh->prepare("select mode, size, name from ."); $sth->execute; $sth->fetchrow_hashref;

CVSS 7.5 · High · EPSS 0.6% · Fix available

Published

2026-09-28T16:04:40.458Z

Updated

2026-09-30T19:51:20.177Z

Stack: system

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