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PatchSiren cyber security CVE debrief

CVE-2026-14740 HMBRAND CVE debrief

CVE-2026-14740 is a vulnerability in DBI versions before 1.650 for Perl. 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. This can cause a fault on memory-hardened builds and nondeterministic newline retention on normal builds. Users of DBI versions before 1.650 for Perl should be aware of this vulnerability and take steps to remediate. The vulnerability has a medium defensive priority.

Vendor
HMBRAND
Product
DBI
CVSS
CRITICAL 9.1
CISA KEV
Not listed in stored evidence
Original CVE published
2026-07-07
Original CVE updated
2026-07-10
Advisory published
2026-07-07
Advisory updated
2026-07-10

Who should care

Users of DBI versions before 1.650 for Perl, operators, platform administrators, vulnerability management teams, and security teams should be aware of this vulnerability and take steps to remediate. They should review compensating controls for exposed systems while remediation is scheduled and verified. They should also check relevant monitoring, detection, and logs for exposed assets that need extra review.

Technical summary

The preparse method in DBI versions before 1.650 for Perl reads one byte out-of-bounds when deleting an initial SQL comment. This can lead to a fault on memory-hardened builds and nondeterministic newline retention on normal builds. The vulnerability affects DBI versions before 1.650 for Perl and has a medium defensive priority. Users should review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance.

Defensive priority

Medium

Recommended defensive actions

  • Inventory and check for DBI versions before 1.650 for Perl
  • Apply vendor remediation or upgrade to DBI version 1.650 or later
  • Monitor for potential exploitation attempts
  • Review compensating controls for exposed systems while remediation is scheduled and verified
  • Check relevant monitoring, detection, and logs for exposed assets that need extra review
  • Track exceptions, retest remediated assets, and close the item only after evidence is documented
  • Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record was published on 2026-07-07T23:16:54.193Z and has not been modified since then. The NVD entry is currently Received. There is limited information available about the vulnerability, and defenders should verify the affected scope and severity with the vendor. The preparse method in DBI versions before 1.650 for Perl reads one byte out-of-bounds when deleting an initial SQL comment, which can lead to a fault on memory-hardened builds and nondeterministic newline retention on normal builds.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-14740 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-14740

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-14740 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-14740

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

  • Source reference

    Unverified legacy reference

    URL: https://github.com/perl5-dbi/dbi/commit/fc16f9e8b3dd5c65caf1867781ab2bfe2fadcc01.patch

    9b29abf9-4ab0-4765-b253-1875cd9b441e

  • Source reference

    Unverified legacy reference

    URL: https://github.com/perl5-dbi/dbi/security/advisories/GHSA-35f4-f8m9-w8xg

    9b29abf9-4ab0-4765-b253-1875cd9b441e

  • Source reference

    Unverified legacy reference

    URL: https://metacpan.org/release/HMBRAND/DBI-1.650/changes

    9b29abf9-4ab0-4765-b253-1875cd9b441e

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.