# CVE-2026-14739: Memory corruption in DBI

> Heap overflow in Perl DBI allows attackers to cause denial of service or execute code via SQL statements with excessive placeholders.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 7 Jul 2026
- **Updated:** 8 Jul 2026
- **Also known as:** ALPINE-CVE-2026-14739, AZL-92202, BELL-CVE-2026-14739, DEBIAN-CVE-2026-14739, ECHO-a14b-4653-c837, GHSA-w9gf-c5hh-cc8w, UBUNTU-CVE-2026-14739

## What is CVE-2026-14739?

CVE-2026-14739 is a critical memory corruption vulnerability in HMBRAND DBI, published on 7 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

DBI versions before 1.650 for Perl have a heap overflow when preparsing SQL statements with an extreme number of placeholders.

The fix for CVE-2026-10879 did not allocate enough memory to handle approximately 1.2-million placeholders.

DBI version 1.650 sets a hard limit of 99,999 placeholders.

Weakness: CWE-787 (Out-of-bounds Write)

## Which versions are affected by CVE-2026-14739?

It affects 1 product.


Products: Perl Dbi.

## How do I fix CVE-2026-14739?

Upgrade to a fixed version.

## Is CVE-2026-14739 being exploited?

There is no known exploitation of CVE-2026-14739 in the wild and no public exploit code.

## Other vulnerabilities in HMBRAND DBI

- [CVE-2026-10879](https://insights.sbomify.com/CVE-2026-10879/): DBI versions before 1.648 for Perl have a heap overflow when preparsing SQL statements with more than 9 binders (critical 9.8)
- [CVE-2026-14740](https://insights.sbomify.com/CVE-2026-14740/): DBI versions before 1.650 for Perl read one byte out-of-bounds in preparse when deleting an initial SQL comment (critical 9.1)
- [CVE-2026-14380](https://insights.sbomify.com/CVE-2026-14380/): DBI versions before 1.650 for Perl are vulnerable to code injection via caller-influenced Profile (high 8.8)
- [CVE-2026-9698](https://insights.sbomify.com/CVE-2026-9698/): DBI versions before 1.648 for Perl saved errors in a limited-sized buffer (high 7.5)
- [CVE-2014-10402](https://insights.sbomify.com/CVE-2014-10402/): Path traversal in n/a (medium 6.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-14739 and fix it if it is affected.

What it is: CVE-2026-14739 is a critical memory corruption vulnerability in HMBRAND DBI, published on 7 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-14739 in the wild and no public exploit code.

Affected product: HMBRAND DBI. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-14739/ (Markdown: https://insights.sbomify.com/CVE-2026-14739/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-14739
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-14739
- OSV: https://osv.dev/vulnerability/CVE-2026-14739

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-14739/
Summaries are generated and may contain mistakes; the official description above is the record.