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CVE-2026-57080

Net::BitTorrent versions through 2.1.0 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 upper bound, while receive_data appends every inbound byte to the input buffer. A peer announces a length prefix of up to about 4 GiB and then streams bytes; the decoder waits until the buffer holds the full message before processing it, so the buffer grows witho
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:dd4123650561833b3fb23c8e28e879bbdbfd9f1ff50e132acf62848f15db3a90
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-400","description":"CWE-400 Uncontrolled Resource Consumption","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:aee12e7c9b681abac20512b77a1a4870bb6249cf10fac99bc21197c603987367 · sha256:12e1144827ba0407… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-770","description":"CWE-770 Allocation of Resources Without Limits or Throttling","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:aee12e7c9b681abac20512b77a1a4870bb6249cf10fac99bc21197c603987367 · sha256:12e1144827ba0407… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"collectionURL":"https://cpan.org/modules","defaultStatus":"unaffected","packageName":"Net-BitTorrent","product":"Net::BitTorrent","programFiles":["lib/Net/BitTorrent/Protocol/BEP03.pm"],"programRoutines":[{"name":"Net::BitTorrent::Protocol::BEP03::_process_messages"},{"name":"Net::BitTorrent::Protocol::BEP03::receive_data"}],"repo":"https://github.com/sanko/Net-BitTorrent.pm","vendor":"SANKO","versions":[{"lessThanOrEqual":"2.1.0","status":"affected","version":"0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:aee12e7c9b681abac20512b77a1a4870bb6249cf10fac99bc21197c603987367 · sha256:12e1144827ba0407… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:aee12e7c9b681abac20512b77a1a4870bb6249cf10fac99bc21197c603987367 · sha256:12e1144827ba0407… · /containers/adp/0/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-400","description":"CWE-400 Uncontrolled Resource Consumption","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:aee12e7c9b681abac20512b77a1a4870bb6249cf10fac99bc21197c603987367 · sha256:12e1144827ba0407… · /containers/cna/problemTypes/1/descriptions/0
{"cweId":"CWE-770","description":"CWE-770 Allocation of Resources Without Limits or Throttling","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:aee12e7c9b681abac20512b77a1a4870bb6249cf10fac99bc21197c603987367 · sha256:12e1144827ba0407… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions
{"tags":["vendor-advisory"],"url":"https://github.com/sanko/Net-BitTorrent.pm/security/advisories/GHSA-7jr6-2jf4-6qc4"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:aee12e7c9b681abac20512b77a1a4870bb6249cf10fac99bc21197c603987367 · sha256:12e1144827ba0407… · /containers/cna/references/0
{"tags":["release-notes"],"url":"https://metacpan.org/release/SANKO/Net-BitTorrent-v2.1.0/changes"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:aee12e7c9b681abac20512b77a1a4870bb6249cf10fac99bc21197c603987367 · sha256:12e1144827ba0407… · /containers/cna/references/1

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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