Plattform
perl
Komponente
unqlite
Behoben in
0.07
CVE-2026-3257 identifies a heap-based overflow vulnerability affecting the UnQLite Perl module. This vulnerability arises from the module's use of an outdated version of the underlying UnQLite library, dating back to 2014. Successful exploitation could lead to denial of service or, in more severe cases, arbitrary code execution. The vulnerability affects versions 0.06 and earlier of the UnQLite Perl module, with a fix available in version 0.07.
The heap-based overflow vulnerability allows an attacker to potentially overwrite memory regions, leading to unpredictable program behavior. A successful exploit could result in a denial of service, crashing the Perl application or the entire system. More concerningly, an attacker might be able to leverage the overflow to inject and execute arbitrary code, gaining control of the affected system. The specific impact depends on the privileges of the user running the Perl script and the environment in which it operates. While no public exploits are currently known, the potential for remote code execution makes this a significant security concern.
CVE-2026-3257 is currently not listed on the CISA KEV catalog. The EPSS score is pending evaluation. No public proof-of-concept exploits have been published at the time of writing. The vulnerability was disclosed on 2026-03-05, and the availability of a patch suggests a relatively low probability of immediate exploitation, though the potential for future exploitation remains.
Systems running Perl scripts that utilize the UnQLite module, particularly those handling untrusted input, are at risk. Shared hosting environments where multiple users may be running Perl scripts are also a concern, as a vulnerability in one user's script could potentially impact others.
• perl / module: Use cpan list to identify installed versions of UnQLite. Check for versions prior to 0.07.
cpan -l UnQLite• perl / module: Examine Perl scripts for imports from the UnQLite module. Review code for any user-controlled input passed to UnQLite functions. • generic / system: Monitor system logs for Perl interpreter crashes or segmentation faults, particularly when the UnQLite module is in use.
disclosure
Exploit-Status
EPSS
0.05% (17% Perzentil)
The primary mitigation for CVE-2026-3257 is to upgrade the UnQLite Perl module to version 0.07 or later, which incorporates a patched version of the UnQLite library. If upgrading is not immediately feasible due to compatibility issues or system downtime constraints, consider implementing input validation on any data passed to the UnQLite library within the Perl script. This can help prevent malicious data from triggering the overflow. Monitor system logs for unusual memory access patterns or crashes that might indicate exploitation attempts. After upgrading, confirm the fix by running a test suite that exercises the vulnerable code paths and verifies that the overflow is no longer triggered.
Aktualisieren Sie das UnQLite Perl-Modul auf Version 0.07 oder höher. Dies ersetzt die anfällige UnQLite Bibliothek durch eine korrigierte Version.
Schwachstellenanalysen und kritische Warnungen direkt in deinen Posteingang.
CVE-2026-3257 is a heap-based overflow vulnerability in the UnQLite Perl module, stemming from an outdated embedded library. It affects versions 0.06 and earlier, potentially leading to denial-of-service or code execution.
You are affected if you are using the UnQLite Perl module version 0.06 or earlier. Check your installed version using cpan -l UnQLite.
Upgrade the UnQLite Perl module to version 0.07 or later using cpan UnQLite.
Currently, there are no publicly known exploits for CVE-2026-3257, but the potential for code execution warrants attention.
Refer to the Perl module documentation and CPAN for updates and advisories related to CVE-2026-3257.
Lade deine Abhängigkeitsdatei hoch und erfahre sofort, ob dich diese und andere CVEs treffen.