CVE Explorer

CVE-2026-45783

libp2p is a JavaScript Implementation of libp2p networking stack. Prior to version 16.2.6, an unauthenticated remote peer can exhaust the disk storage of any @libp2p/kad-dht node running in server mode by sending an unbounded stream of PUT_VALUE messages whose keys bypass all content validation. No credentials, no prior relationship, and no protocol deviation beyond a crafted key are required. The victim node's datastore fills until the host disk is exhausted, making the node unavailable. This i

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:93f526f8d32971b02f010ef1dfe4a05dca43ba69b1f00d8ad6bf74a884732d55

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-20","description":"CWE-20: Improper Input Validation","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:ac21191e30d24acf8b1ebbae63a8f8e902f6a0dfc07d4d22b1bdbc58ba10ba76 · sha256:f2e27db79e63877c… · /containers/cna/problemTypes/0/descriptions/0

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

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:ac21191e30d24acf8b1ebbae63a8f8e902f6a0dfc07d4d22b1bdbc58ba10ba76 · sha256:f2e27db79e63877c… · /containers/cna/problemTypes/1/descriptions/0

Affected products and versions

1 source assertion

{"product":"js-libp2p","vendor":"libp2p","versions":[{"status":"affected","version":"< 16.2.6"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:ac21191e30d24acf8b1ebbae63a8f8e902f6a0dfc07d4d22b1bdbc58ba10ba76 · sha256:f2e27db79e63877c… · /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:ac21191e30d24acf8b1ebbae63a8f8e902f6a0dfc07d4d22b1bdbc58ba10ba76 · sha256:f2e27db79e63877c… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

2 source assertions

{"cweId":"CWE-20","description":"CWE-20: Improper Input Validation","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:ac21191e30d24acf8b1ebbae63a8f8e902f6a0dfc07d4d22b1bdbc58ba10ba76 · sha256:f2e27db79e63877c… · /containers/cna/problemTypes/0/descriptions/0

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

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:ac21191e30d24acf8b1ebbae63a8f8e902f6a0dfc07d4d22b1bdbc58ba10ba76 · sha256:f2e27db79e63877c… · /containers/cna/problemTypes/1/descriptions/0

Source references

2 source assertions

{"tags":["exploit"],"url":"https://github.com/libp2p/js-libp2p/security/advisories/GHSA-32mq-hpph-xfvr"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:ac21191e30d24acf8b1ebbae63a8f8e902f6a0dfc07d4d22b1bdbc58ba10ba76 · sha256:f2e27db79e63877c… · /containers/adp/0/references/0

{"name":"https://github.com/libp2p/js-libp2p/security/advisories/GHSA-32mq-hpph-xfvr","tags":["x_refsource_CONFIRM"],"url":"https://github.com/libp2p/js-libp2p/security/advisories/GHSA-32mq-hpph-xfvr"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:ac21191e30d24acf8b1ebbae63a8f8e902f6a0dfc07d4d22b1bdbc58ba10ba76 · sha256:f2e27db79e63877c… · /containers/cna/references/0

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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