---
cve: "CVE-2026-14740"
severity: "CRITICAL"
cvss: 9.1
epss: "39%"
vendor: "HMBRAND"
kev: false
exploited: false
published: "2026-07-07 23:16:54"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-09-07T01:05:09+02:00"
---

# CVE-2026-14740

> 9.1 CRITICAL · 🧪 PoC

## Beschreibung

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-Vektor

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

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Keine | good |
| A Verfügbarkeit | Hoch | bad |

## Patch verfügbar (OSV)

- e471b1e8667b8b1de404db07e0c9331df06eb621 (Commit)
- fc16f9e8b3dd5c65caf1867781ab2bfe2fadcc01 (Commit)

## Referenzen

- <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>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-14740) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_