CVE-2026-88816

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-88816", "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "state": "PUBLISHED", "assignerShortName": "CPANSec", "dateReserved": "2026-09-10T08:47:49.901Z", "datePublished": "2026-09-28T16:04:40.458Z", "dateUpdated": "2026-09-30T19:51:20.177Z"}, "containers": {"cna": {"affected": [{"collectionURL": "https://cpan.org/modules", "defaultStatus": "unaffected", "modules": ["DBI"], "packageName": "DBI", "packageURL": "pkg:cpan/DBI", "programFiles": ["DBI.xs"], "programRoutines": [{"name": "DBD::_::st::fetchrow_hashref"}], "repo": "https://github.com/perl5-dbi/dbi", "versions": [{"lessThan": "1.654", "status": "affected", "version": "0", "versionType": "custom"}]}], "credits": [{"lang": "en", "type": "finder", "value": "Harsh Raj Singhania"}], "descriptions": [{"lang": "en", "value": "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;"}], "problemTypes": [{"descriptions": [{"cweId": "CWE-843", "description": "CWE-843 Access of Resource Using Incompatible Type ('Type Confusion')", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "shortName": "CPANSec", "dateUpdated": "2026-09-28T16:04:40.458Z"}, "references": [{"tags": ["vendor-advisory"], "url": "https://github.com/perl5-dbi/dbi/security/advisories/GHSA-f4qx-mr9m-q2hq"}, {"tags": ["patch"], "url": "https://github.com/perl5-dbi/dbi/commit/70962570212dc60a5428098cf2a0462ad5945851.patch"}, {"tags": ["release-notes"], "url": "https://metacpan.org/release/HMBRAND/DBI-1.654/changes"}], "solutions": [{"lang": "en", "value": "Upgrade to DBI 1.654 or later."}], "source": {"discovery": "UNKNOWN"}, "title": "DBI versions before 1.654 for Perl incorrectly treat numeric values as strings in FetchHashKeyName", "x_generator": {"engine": "cpansec-cna-tool 0.1"}}, "adp": [{"title": "CVE Program Container", "references": [{"url": "http://www.openwall.com/lists/oss-security/2026/09/28/13"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2026-09-28T18:10:35.512Z"}}, {"references": [{"url": "https://github.com/perl5-dbi/dbi/security/advisories/GHSA-f4qx-mr9m-q2hq", "tags": ["exploit"]}], "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-09-30T19:51:15.598426Z", "id": "CVE-2026-88816", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-30T19:51:20.177Z"}}]}}

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-88816", "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "state": "PUBLISHED", "assignerShortName": "CPANSec", "dateReserved": "2026-09-10T08:47:49.901Z", "datePublished": "2026-09-28T16:04:40.458Z", "dateUpdated": "2026-09-30T19:51:20.177Z"}, "containers": {"cna": {"affected": [{"collectionURL": "https://cpan.org/modules", "defaultStatus": "unaffected", "modules": ["DBI"], "packageName": "DBI", "packageURL": "pkg:cpan/DBI", "programFiles": ["DBI.xs"], "programRoutines": [{"name": "DBD::_::st::fetchrow_hashref"}], "repo": "https://github.com/perl5-dbi/dbi", "versions": [{"lessThan": "1.654", "status": "affected", "version": "0", "versionType": "custom"}]}], "credits": [{"lang": "en", "type": "finder", "value": "Harsh Raj Singhania"}], "descriptions": [{"lang": "en", "value": "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;"}], "problemTypes": [{"descriptions": [{"cweId": "CWE-843", "description": "CWE-843 Access of Resource Using Incompatible Type ('Type Confusion')", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "shortName": "CPANSec", "dateUpdated": "2026-09-28T16:04:40.458Z"}, "references": [{"tags": ["vendor-advisory"], "url": "https://github.com/perl5-dbi/dbi/security/advisories/GHSA-f4qx-mr9m-q2hq"}, {"tags": ["patch"], "url": "https://github.com/perl5-dbi/dbi/commit/70962570212dc60a5428098cf2a0462ad5945851.patch"}, {"tags": ["release-notes"], "url": "https://metacpan.org/release/HMBRAND/DBI-1.654/changes"}], "solutions": [{"lang": "en", "value": "Upgrade to DBI 1.654 or later."}], "source": {"discovery": "UNKNOWN"}, "title": "DBI versions before 1.654 for Perl incorrectly treat numeric values as strings in FetchHashKeyName", "x_generator": {"engine": "cpansec-cna-tool 0.1"}}, "adp": [{"title": "CVE Program Container", "references": [{"url": "http://www.openwall.com/lists/oss-security/2026/09/28/13"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2026-09-28T18:10:35.512Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2026-88816", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-09-30T19:51:15.598426Z"}}}], "references": [{"url": "https://github.com/perl5-dbi/dbi/security/advisories/GHSA-f4qx-mr9m-q2hq", "tags": ["exploit"]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-30T19:51:08.907Z"}}]}}

{"affected": [{"affectedData": [{"collectionURL": "https://cpan.org/modules", "defaultStatus": "unaffected", "modules": ["DBI"], "packageName": "DBI", "packageURL": "pkg:cpan/DBI", "programFiles": ["DBI.xs"], "programRoutines": [{"name": "DBD::_::st::fetchrow_hashref"}], "repo": "https://github.com/perl5-dbi/dbi", "versions": [{"lessThan": "1.654", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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;"}], "id": "CVE-2026-88816", "lastModified": "2026-09-30T20:17:35.557", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-88816", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-09-30T19:51:15.598426Z", "version": "2.0.3"}}]}, "published": "2026-09-28T17:17:52.203", "references": [{"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "url": "https://github.com/perl5-dbi/dbi/commit/70962570212dc60a5428098cf2a0462ad5945851.patch"}, {"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "url": "https://github.com/perl5-dbi/dbi/security/advisories/GHSA-f4qx-mr9m-q2hq"}, {"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "url": "https://metacpan.org/release/HMBRAND/DBI-1.654/changes"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.openwall.com/lists/oss-security/2026/09/28/13"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://github.com/perl5-dbi/dbi/security/advisories/GHSA-f4qx-mr9m-q2hq"}], "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-843"}], "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "type": "Secondary"}]}

{"bugzilla": {"description": "perl-DBI: perl-DBI: Denial of Service via numeric FetchHashKeyName attribute", "id": "2542560", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2542560"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.9", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-843", "details": ["A flaw was found in perl-DBI. An attacker or user capable of supplying a numeric value to the FetchHashKeyName attribute can cause a Denial of Service (DoS). The fetchrow_hashref function attempts to use the attribute value as a string pointer without stringifying it first, leading to an invalid memory read and triggering a segmentation fault that crashes the application."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability."}, "name": "CVE-2026-88816", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "perl-DBI", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "perl-DBI", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "perl-DBI", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "perl-DBI", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "perl-DBI:1.641/perl-DBI", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "perl-DBI", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-09-28T16:04:40Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-88816\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-88816\nhttps://github.com/perl5-dbi/dbi/commit/70962570212dc60a5428098cf2a0462ad5945851.patch\nhttps://github.com/perl5-dbi/dbi/security/advisories/GHSA-f4qx-mr9m-q2hq\nhttps://metacpan.org/release/HMBRAND/DBI-1.654/changes"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,1.654)"}}], "enrichment": {"confidence": 85.0, "confidence_source": "inferred", "scores": [{"score": 85.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "product": "dbi", "vendor": "perl"}], "created": "2026-09-28T17:45:04.029736+00:00", "updated": "2026-10-01T01:45:16.938996+00:00", "vendors": ["perl", "perl$PRODUCT$dbi"]}