---
title: "CVE-2026-78030: Perl DBI - Remote Code Execution"
description: "Perl DBI versions before 1.653 with DBD::DBM contain a code injection vulnerability caused by unvalidated dbm_type and dbm_mldbm attributes allowing arbitrary module loading, letting attackers execute arbitrary code remotely, exploit requires attacker-controlled input in connection attributes."
url: https://panop.io/threat-heartbeat/CVE-2026-78030/
---

# CVE-2026-78030 Perl DBI - Remote Code Execution

Perl DBI versions before 1.653 with DBD::DBM contain a code injection vulnerability caused by unvalidated dbm\_type and dbm\_mldbm attributes allowing arbitrary module loading, letting attackers execute arbitrary code remotely, exploit requires attacker-controlled input in connection attributes.

CVSS base score 9.8 /10

Critical

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

EPSS

0.42% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-78030)

## Details

Type

Remote Code Execution

Impact

Remote Code Execution

CVSS vector

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

Published

19 September 2026

Updated

15 October 2026

Weakness

[CWE-470](https://cwe.mitre.org/data/definitions/470.html)

## Vendor fix

Upgrade to DBI version 1.653 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-78030](https://nvd.nist.gov/vuln/detail/CVE-2026-78030)
- [https://github.com/perl5-dbi/dbi/commit/315c6ce703b8b3cbe9188062d9ec80730293554a.patch](https://github.com/perl5-dbi/dbi/commit/315c6ce703b8b3cbe9188062d9ec80730293554a.patch)
- [https://github.com/perl5-dbi/dbi/security/advisories/GHSA-wqmw-wqwx-3fr7](https://github.com/perl5-dbi/dbi/security/advisories/GHSA-wqmw-wqwx-3fr7)
- [https://metacpan.org/release/HMBRAND/DBI-1.653/changes](https://metacpan.org/release/HMBRAND/DBI-1.653/changes)
- [http://www.openwall.com/lists/oss-security/2026/09/19/4](http://www.openwall.com/lists/oss-security/2026/09/19/4)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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