CVE-2026-78030
Public on 2026-09-15
Modified on 2026-09-15
Description
A critical arbitrary code execution vulnerability (CWE-94) found in the DBD::DBM database driver, which is a core component shipped within the Perl DBI (Database Interface) module. The flaw exists because the dbm_type and dbm_mldbm handle attributes pass user-influenced input directly into Perl's native require() function without verifying if the arguments are valid module names.Perl’s require() function handles strings containing file paths differently than standard module names. If it receives a path-shaped string (e.g., pointing outside standard libraries), it treats it as a literal filename and bypasses the safe @INC directory restrictions. As a result, an attacker who can influence either of these configuration attributes can force the application to load and automatically execute an untrusted .pm (Perl module) file from any location on the filesystem.
Severity
See what this means
CVSS v3 Base Score
See breakdown
Affected Packages
| Platform | Package | Release Date | Advisory | Status |
|---|---|---|---|---|
| Amazon Linux 2 - Core | perl | Not Affected | ||
| Amazon Linux 2023 | perl | Not Affected | ||
| Amazon Linux 2027 Preview | perl | Not Affected | ||
| Amazon Linux 2 - Core | perl-DBI | Pending Fix | ||
| Amazon Linux 2023 | perl-DBI | Pending Fix | ||
| Amazon Linux 2027 Preview | perl-DBI | Pending Fix |
CVSS Scores
| Score Type | Score | Vector | |
|---|---|---|---|
| Amazon Linux | CVSSv3 | 8.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |