CVE-2026-10879

DBI versions before 1.648 for Perl have a heap overflow when preparsing SQL statements with more than 9 binders. The preparse method expands SQL placeholder characters to numbered binders of the form :pN, but only allocates three characters per binder in the buffer. Placeholders 10-99 require four characters, 100-999 require five characters, et cetera.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/perl5-dbi/dbi/commit/af79036c07aa9a457971c0f4136e37c85dc20978.patch	Patch
https://metacpan.org/release/HMBRAND/DBI-1.648/changes	Release Notes
http://www.openwall.com/lists/oss-security/2026/06/06/4	Mailing List Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:perl:dbi:*:*:*:*:*:*:*:*

History

26 Oct 2026, 11:10

Type	Values Removed	Values Added
Summary		(es) Las versiones de DBI anteriores a la 1.648 para Perl tienen un desbordamiento de montículo al preanalizar sentencias SQL con más de 9 enlazadores. El método “preparse” expande los caracteres de marcador de posición SQL a enlazadores numerados de la forma :pN, pero solo asigna tres caracteres por enlazador en el búfer. Los marcadores de posición 10-99 requieren cuatro caracteres, 100-999 requieren cinco caracteres, etcétera.

Information

Published : 2026-06-05 15:16

Updated : 2026-10-26 11:10

NVD link : CVE-2026-10879

Mitre link : CVE-2026-10879

CVE.ORG link : CVE-2026-10879

JSON object : View

Products Affected

perl

dbi

CWE

CWE-787

Out-of-bounds Write

{"id": "CVE-2026-10879", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-10879", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-06-08T16:54:58.795048Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}]}, "affected": [{"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "affectedData": [{"repo": "https://github.com/perl5-dbi/dbi", "vendor": "HMBRAND", "product": "DBI", "versions": [{"status": "affected", "version": "0", "lessThan": "1.648", "versionType": "custom"}], "packageName": "DBI", "programFiles": ["DBI.xs"], "collectionURL": "https://cpan.org/modules", "defaultStatus": "unaffected"}]}], "published": "2026-06-05T15:16:46.817", "references": [{"url": "https://github.com/perl5-dbi/dbi/commit/af79036c07aa9a457971c0f4136e37c85dc20978.patch", "tags": ["Patch"], "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"}, {"url": "https://metacpan.org/release/HMBRAND/DBI-1.648/changes", "tags": ["Release Notes"], "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"}, {"url": "http://www.openwall.com/lists/oss-security/2026/06/06/4", "tags": ["Mailing List", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "description": [{"lang": "en", "value": "CWE-787"}]}], "descriptions": [{"lang": "en", "value": "DBI versions before 1.648 for Perl have a heap overflow when preparsing SQL statements with more than 9 binders.\n\nThe preparse method expands SQL placeholder characters to numbered binders of the form :pN, but only allocates three characters per binder in the buffer. Placeholders 10-99 require four characters, 100-999 require five characters, et cetera."}, {"lang": "es", "value": "Las versiones de DBI anteriores a la 1.648 para Perl tienen un desbordamiento de mont\u00edculo al preanalizar sentencias SQL con m\u00e1s de 9 enlazadores.\n\nEl m\u00e9todo \u201cpreparse\u201d expande los caracteres de marcador de posici\u00f3n SQL a enlazadores numerados de la forma :pN, pero solo asigna tres caracteres por enlazador en el b\u00fafer. Los marcadores de posici\u00f3n 10-99 requieren cuatro caracteres, 100-999 requieren cinco caracteres, etc\u00e9tera."}], "lastModified": "2026-10-26T11:10:00.157", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:perl:dbi:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5C23D2D0-3FFA-4C49-952A-FD8FE4684AF5", "versionEndExcluding": "1.648"}], "operator": "OR"}]}], "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e"}