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VulnerabilityPublished Updated

CVE-2026-111879: Libdbi perl · DBI versions before 1.656 for Perl hang on a later open of a DBD::DBM table because a

Affects libdbi-perlSource GCVE Database

0
Authoritative record:CVE-2026-111879· Medium

Not known to be exploited.

Data as of 28 Oct 2026, 22:31 UTC

Severity
Medium

Rated by Threat Radar · CVSS not yet scored by NVD

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 20 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Ubuntu 26.10libdbi-perlpkg:deb/ubuntu/libdbi-perl?arch=source&distro=stonkingOther threatsAffected
  • 1.647-1build1 – 1.652-2
4 affected builds
Fixed in–
Ubuntu 26.04 LTSlibdbi-perlpkg:deb/ubuntu/libdbi-perl?arch=source&distro=resoluteOther threatsAffected
  • 1.647-1 – 1.647-1ubuntu0.26.04.4
5 affected builds
Fixed in–
Ubuntu 24.04 LTSlibdbi-perlpkg:deb/ubuntu/libdbi-perl?arch=source&distro=nobleOther threatsAffected
  • 1.643-4 – 1.643-4ubuntu0.4
7 affected builds
Fixed in–
Ubuntu 22.04 LTSlibdbi-perlpkg:deb/ubuntu/libdbi-perl?arch=source&distro=jammyOther threatsAffected
  • 1.643-3build2 – 1.643-3ubuntu0.4
5 affected builds
Fixed in–
Ubuntu Pro 20.04 LTSlibdbi-perlpkg:deb/ubuntu/libdbi-perl?arch=source&distro=esm-infra/focalOther threatsAffected
  • 1.642-1 – 1.643-1ubuntu0.1+esm4
7 affected builds
Fixed in–
Ubuntu Pro 18.04 LTSlibdbi-perlpkg:deb/ubuntu/libdbi-perl?arch=source&distro=esm-infra/bionicOther threatsAffected
  • 1.637-1 – 1.640-1ubuntu0.3+esm4
9 affected builds
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

Description

DBI versions before 1.656 for Perl hang on a later open of a DBD::DBM table because a failed open_data does not release the table's lock. open_data creates the table's lock file and takes an exclusive flock on it for a CREATE, before the checks that can croak: a dbm_mldbm value that is not a module name, a failing tie, or a missing data file. The croak unwinds before the table object is blessed, so nothing releases the lock, and the meta data holding the open descriptor stays cached on the database handle. The dbm_mldbm and dbm_type values come from the DSN or the connect attributes, so a caller that chooses the serializer or the storage backend can trigger the failure. The flock has no timeout, so a later open of that table (even through a separate database handle) blocks for as long as the handle holding the stale lock lives, in the same process or any other.

References

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