{"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":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-843"],"vendor":"Red Hat","product":"DBI","affected":["DBI < 1.654"],"published":"2026-09-28","updated":"2026-09-30","sourceUpdated":"2026-09-30T20:17:35.557","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"},{"url":"http://www.openwall.com/lists/oss-security/2026/09/28/13","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/perl5-dbi/dbi/security/advisories/GHSA-f4qx-mr9m-q2hq","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-88816.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-88816"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2542560"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-88816"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-88816"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-09-30T19:51:15.598426Z"},"epss":0.00386,"epssPercentile":0.32489,"scores":{"nvd":7.5,"vendor":5.9},"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.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9 · no fix planned: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, … · updated 2026-09-30 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-88816.json)","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[{"seq":213908,"id":"CVE-2026-88816","ts":1790799879865,"field":"cvss","old":"5.9","new":"7.5"},{"seq":213907,"id":"CVE-2026-88816","ts":1790799879865,"field":"severity","old":"medium","new":"high"},{"seq":212293,"id":"CVE-2026-88816","ts":1790668139139,"field":"cvss","old":null,"new":"5.9"},{"seq":212292,"id":"CVE-2026-88816","ts":1790668139139,"field":"severity","old":"none","new":"medium"}]}