---
id: CVE-2026-111879
title: >-
  perl-DBI: perl-DBI: Denial of Service via unreleased table lock on error
  (CVE-2026-111879)
summary: >-
  A flaw was found in perl-DBI. When creating or opening a database table in the
  DBD::DBM module fails due to an error, an exclusive file lock acquired during
  initialization is not properly released. A user or attacker who can control
  connec…
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'
cvssSource: vendor
cwe:
  - CWE-772
  - CWE-667
vendor: Red Hat
product: Red Hat Enterprise Linux 8
affected:
  - enterprise_linux 10
  - enterprise_linux 6
  - enterprise_linux 7
  - enterprise_linux 8
  - enterprise_linux 9
published: '2026-10-20'
updated: '2026-10-21'
sourceUpdated: '2026-10-21T09:34:49+00:00'
source: CSAF
sourceUrl: 'https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-111879.json'
references:
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-111879.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-111879'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2557638'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-111879'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-111879'
  - url: >-
      https://github.com/perl5-dbi/dbi/commit/99bbf2ab9d137e6f042a770bd3bbba3bc0b3a901.patch
  - url: 'https://github.com/perl5-dbi/dbi/security/advisories/GHSA-8cx8-9vj9-9x7j'
  - url: 'https://metacpan.org/release/HMBRAND/DBI-1.656/changes'
tags:
  - csaf
  - vex
  - red-hat
  - cve.org
ingestedAt: '2026-10-20T22:23:33.875Z'
epss: 0.00176
epssPercentile: 0.07131
---

## Overview

A flaw was found in perl-DBI. When creating or opening a database table in the DBD::DBM module fails due to an error, an exclusive file lock acquired during initialization is not properly released. A user or attacker who can control connection parameters can trigger this failure, leaving the lock active indefinitely. This issue leads to a Denial of Service (DoS), as subsequent attempts by any process to access the affected table will hang permanently.

## Vendor advisories

- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9 · no fix planned: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, … · updated 2026-10-21 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-111879.json)

**perl-DBI: perl-DBI: Denial of Service via unreleased table lock on error** — rated Moderate by Red Hat. Released 2026-10-20, updated 2026-10-21.

Affected:

- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9

No fix planned:

- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9

## Remediation

Out of support scope