CVE-2026-57079Disclosure

LOWCVSS 5.3 · MEDIUM

Signal is active with 2 mentions in latest observed window

Immediate actions

Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

Net::BitTorrent versions before 2.1.0 for Perl write files outside the download directory via path traversal in peer-supplied metadata. Net::BitTorrent validates file path components only on the .torrent-file ingest path. The peer and magnet metadata path (_on_metadata_received, reached from the BEP09 ut_metadata extension) passes attacker-supplied file names straight to Storage::add_file and Storage::_parse_file_tree, where Path::Tiny's child() does not collapse "..". A v2 file tree key, a v1 files[].path element, or a single-file name containing ".." segments therefore resolves outside the download directory. Because the peer also controls the piece hashes and the served bytes, content verification passes, so a malicious magnet or peer writes attacker-chosen content to an attacker-chosen path on the downloading host.

Back to dashboard

0.0/ 10 priority

Sources & remediation

Other references

Weakness type (CWE)

CWE-22

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

2 mentions across 1 observed day

What's happening

Technical details provided in 2 signals
Disclosure: 2 classified signals
2 total mentions across 1 day

Deep dive

Activity timeline2 mentions / 1d

Signal classification1 categories

Disclosure

2100.0%

Referenced assets2 URLs

By indicator

Full discourse2 posts

CVE@CVEnew92d
Disclosure
CVE-2026-57079 Net::BitTorrent versions through 2.0.1 for Perl write files outside the download directory via path traversal in peer-supplied metadata. Net::BitTorrent validates fi… https://www.cve.org/CVERecord?id=CVE-2026-57079
Post summary
The post announces CVE-2026-57079 affecting Net::BitTorrent versions 2.0.1 and earlier, detailing a path‑traversal flaw that allows an attacker to write files outside the intended download directory via malicious peer metadata, and provides a link to the official CVE record.
01010782
57.7K followersView on X
Infoflowcloud@infoflowcloud92d
Disclosure
🚨*CVE* CVE-2026-57079 Net::BitTorrent versions through 2.0.1 for Perl write files outside the download directory via path traversal in peer-supplied metadata. Net::BitTorrent validates fi… https://www.cve.org/CVERecord?id=CVE-2026-57079 ----- Traducción: CVE-2026-57079 Net… http://infoflow.cloud`
Post summary
The post announces CVE-2026-57079, describing a path‑traversal flaw in Net::BitTorrent that could allow writing files outside the download directory, but provides no evidence of PoCs, exploits, or mitigation information.
0000033
89 followersView on X

Explore more

Back to dashboard