{"id":"CVE-2026-88816","published":"2026-09-28T17:17:52.203","lastModified":"2026-09-29T18:56:35.707","description":"DBI versions before 1.654 for Perl incorrectly treat numeric values as strings in FetchHashKeyName.\n\nfetchrow_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.\n\nThis can be triggered with the following code:\n\n   my $dbh = DBI->connect( \"dbi:ExampleP:\", \"\", \"\",\n       { RaiseError => 0, PrintError => 0 } );\n   $dbh->{FetchHashKeyName} = 42;\n\n   my $sth = $dbh->prepare(\"select mode, size, name from .\");\n   $sth->execute;\n   $sth->fetchrow_hashref;","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":["CWE-843"],"vendors":[],"products":[],"references":[{"url":"https://github.com/perl5-dbi/dbi/commit/70962570212dc60a5428098cf2a0462ad5945851.patch","tags":[]},{"url":"https://github.com/perl5-dbi/dbi/security/advisories/GHSA-f4qx-mr9m-q2hq","tags":[]},{"url":"https://metacpan.org/release/HMBRAND/DBI-1.654/changes","tags":[]},{"url":"http://www.openwall.com/lists/oss-security/2026/09/28/13","tags":[]}],"exploitRefs":[{"url":"https://github.com/perl5-dbi/dbi/commit/70962570212dc60a5428098cf2a0462ad5945851.patch","tags":[]},{"url":"https://github.com/perl5-dbi/dbi/security/advisories/GHSA-f4qx-mr9m-q2hq","tags":[]}],"hasPoc":true,"ai":null}