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Vulnerability record · CVE-2026-14740 · published 7 July 2026

CVE-2026-14740: Perl dbi out-of-bounds read vulnerability

Perl · Dbi

DBI versions before 1.650 for Perl read one byte out-of-bounds in preparse when deleting an initial SQL comment. The preparse method normalises SQL and removes comments. When the SQL starts with a comment line, the deletion of that line during normalisation led to an out-of-bounds read by one byte. The result is a fault on memory-hardened builds and nondeterministic newline retention on normal builds.

9.1 CVSS 3.1 Critical EPSS 0.39% · top 69.9% CWE-125 · Out-of-bounds read
9.1CVSS 3.1 base score
0.39%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
10 Jul 2026Last modified by NVD

Description

DBI versions before 1.650 for Perl read one byte out-of-bounds in preparse when deleting an initial SQL comment. The preparse method normalises SQL and removes comments. When the SQL starts with a comment line, the deletion of that line during normalisation led to an out-of-bounds read by one byte. The result is a fault on memory-hardened builds and nondeterministic newline retention on normal builds.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/perl5-dbi/dbi/commit/fc16f9e8b3dd5c65caf1867781ab2bfe2fadcc01.patch Patch
https://github.com/perl5-dbi/dbi/security/advisories/GHSA-35f4-f8m9-w8xg Vendor Advisory
https://metacpan.org/release/HMBRAND/DBI-1.650/changes Release Notes
http://www.openwall.com/lists/oss-security/2026/07/07/17 Mailing ListPatchThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2026-14739Perl dbi out-of-bounds write vulnerabilityDBI versions before 1.650 for Perl have a heap overflow when preparsing SQL statements with an extreme number of placeholders. The fix for CVE-2026-1…EPSS 0.41%9.8CVE-2026-9698Perl dbi out-of-bounds write vulnerabilityDBI versions before 1.648 for Perl saved errors in a limited-sized buffer. Error messages that were returned when RaiseError, PrintError or HandleErr…EPSS 0.82%9.8CVE-2026-10879Perl dbi out-of-bounds write vulnerabilityDBI versions before 1.648 for Perl have a heap overflow when preparsing SQL statements with more than 9 binders. The preparse method expands SQL plac…EPSS 0.49%8.8CVE-2026-14380Perl dbi vulnerabilityDBI versions before 1.650 for Perl are vulnerable to code injection via caller-influenced Profile. When a string is assigned to a DBI handle's Profil…EPSS 0.50%6.1CVE-2014-10402Perl dbi incorrect permission assignment vulnerabilityAn issue was discovered in the DBI module through 1.643 for Perl. DBD::File drivers can open files from folders other than those specifically passed …EPSS 0.48%6.1CVE-2014-10401Perl dbi incorrect permission assignment vulnerabilityAn issue was discovered in the DBI module before 1.632 for Perl. DBD::File drivers can open files from folders other than those specifically passed v…EPSS 0.44%5.3CVE-2013-7490Perl dbi memory buffer overflow vulnerabilityAn issue was discovered in the DBI module before 1.632 for Perl. Using many arguments to methods for Callbacks may lead to memory corruption.EPSS 2.7%5.3CVE-2013-7491Perl dbi out-of-bounds write vulnerabilityAn issue was discovered in the DBI module before 1.628 for Perl. Stack corruption occurs when a user-defined function requires a non-trivial amount o…EPSS 2.7%

Source: NIST National Vulnerability Database (record CVE-2026-14740), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.