{"id":"CVE-2026-88816","title":"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","summary":"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 FetchHash…","severity":"none","cwe":["CWE-843"],"product":"DBI","affected":["DBI < 1.654"],"published":"2026-09-28","updated":"2026-09-28","sourceUpdated":"2026-09-28T17:17:52.203","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-88816","references":[{"url":"https://github.com/perl5-dbi/dbi/commit/70962570212dc60a5428098cf2a0462ad5945851.patch","label":"9b29abf9-4ab0-4765-b253-1875cd9b441e"},{"url":"https://github.com/perl5-dbi/dbi/security/advisories/GHSA-f4qx-mr9m-q2hq","label":"9b29abf9-4ab0-4765-b253-1875cd9b441e"},{"url":"https://metacpan.org/release/HMBRAND/DBI-1.654/changes","label":"9b29abf9-4ab0-4765-b253-1875cd9b441e"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-09-28T17:16:27.816Z","slug":"CVE-2026-88816","body":"## Overview\n\nDBI 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;\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}