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.
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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.