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Vulnerabilities

Vulnerability · CVE-2026-111879

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.

Published Oct 20, 2026 · catalog updated Oct 23, 2026 · DBI versions before 1.656

Last checked Nov 3, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2026-111879. EPSS is 0.33%. Act only if a listed version of DBI versions before 1.656 is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (DBI versions before 1.656).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Unknown—
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.33%
Remediation
Advisory link
Affected products
Debian:12 libdbi-perl · Debian:13 libdbi-perl · Debian:14 libdbi-perl

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • Debian:12 libdbi-perl1.643-4, 1.643-4+deb12u1, 1.643-4+deb12u2
  • Debian:13 libdbi-perl1.647-1, 1.647-1+deb13u1, 1.648-1
  • Debian:14 libdbi-perl1.647-1, 1.648-1, 1.649-1

How to fix CVE-2026-111879

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-111879. EPSS is 0.33%. Act only if a listed version of DBI versions before 1.656 is installed.

Which versions are affected?

Compare what you have installed with 1.643-4, 1.643-4+deb12u1, 1.643-4+deb12u2, 1.647-1, 1.647-1+deb13u1, 1.648-1, 1.647-1, 1.648-1, 1.649-1. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-667. EPSS 0.33%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Debian security

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 20, 2026 · NIST NVD

    Detected

    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, s

  2. Oct 22, 2026 · NIST NVD

    Updated

    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, s

  3. Oct 23, 2026 · Trivy Vulnerability DB

    Updated

    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, s

Sources

  • CVE.orgVulnerability recordCVE-2026-111879

    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 t

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-111879

    30-day exploitation probability 0.33%

    first.org
  • NIST NVDVulnerability recordCVE-2026-111879

    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

    nvd.nist.gov
  • Openwall OSS SecurityThreat researchCVE-2026-111879

    Research mention from Openwall OSS Security. Not confirmation of exploitation.

    openwall.com
  • Trivy Vulnerability DBPackage advisoryDEBIAN-CVE-2026-111879

    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 t

    osv.dev

References

Freshness

Last verified in this catalog Nov 3, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSNov 3, 2026
  • Trivy Vulnerability DBOct 25, 2026
  • CVE.orgOct 23, 2026
  • Openwall OSS SecurityOct 23, 2026
  • NIST NVDOct 22, 2026