What’s Vulnerable › Vulnerabilities

CVE-2026-14740: DBI versions before 1.650 for Perl read one byte out-of-bounds in preparse when deleting an initial SQL comment

• Severity: critical (CVSS 9.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-07 · updated 2026-10-25
• Weakness: CWE-125

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.

Affected products

• HMBRAND DBI: before 1.650 — fixed in 1.650

How to fix

Upgrade to a fixed version: HMBRAND DBI 1.650. Check the vendor advisory for mitigations.

References

• https://github.com/perl5-dbi/dbi/commit/fc16f9e8b3dd5c65caf1867781ab2bfe2fadcc01.patch
• https://github.com/perl5-dbi/dbi/security/advisories/GHSA-35f4-f8m9-w8xg
• https://metacpan.org/release/HMBRAND/DBI-1.650/changes
• http://www.openwall.com/lists/oss-security/2026/07/07/17

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