Resource exhaustion in Sanko Net::bittorrent

CVE-2026-57080

Net::BitTorrent versions through 2.0.1 for Perl allow remote memory exhaustion via an uncapped peer-wire message-length prefix. The peer-wire framing in _process_messages trusts the 4-byte length prefix sent by a connected peer with no up…

Vulnerability class: DoS (Denial of Service)

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-57080?
CVE-2026-57080 is a high-severity vulnerability in Sanko Net::bittorrent, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2026-06-30.
How severe is CVE-2026-57080?
High severity. CVSS v3 base score is 7.5 out of 10.