CVE-2026-111879 (GCVE-0-2026-111879)

Vulnerability from cvelistv5 – Published: 2026-10-20 21:24 – Updated: 2026-10-21 00:17
VLAI
Title
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
Summary
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.
Severity
No CVSS data available.
CWE
Assigner
CPANSec CNA under the redhat root
CNA scorecard C 63/100 over 292 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Affected: 0 , < 1.656 (custom)
Show details on NVD website
To clipboard 

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          "value": "Upgrade to DBI 1.656 or later."
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      "source": {
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