CVE-2026-14740

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.

Weakness Type (CWE)

CWE-125 Out-of-bounds Read

References

Other 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

Frequently Asked Questions

What is CVE-2026-14740? +

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.

How do I check if I'm vulnerable to CVE-2026-14740? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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