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CVE-2026-35405

libp2p-rust is the official rust language Implementation of the libp2p networking stack. Prior to 0.17.1, libp2p-rendezvous server has no limit on how many namespaces a single peer can register. A malicious peer can just keep registering unique namespaces in a loop and the server happily accepts every single one allocating memory for each registration with no pushback. Keep doing this long enough (or with multiple sybil peers) and the server process gets OOM killed. This vulnerability is fixed
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:5209a7d702ceca7ed0dd9caa5c33e37775ca1e4394d91d32ad115945181e4de1
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"rust-libp2p","vendor":"libp2p","versions":[{"status":"affected","version":"< 0.17.1"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c96529311e7ef2a545c07d16ca8d8abc35f335d6020c837854de3403b4240419 · sha256:bf189b88ffe3ccef… · /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:c96529311e7ef2a545c07d16ca8d8abc35f335d6020c837854de3403b4240419 · sha256:bf189b88ffe3ccef… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"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:c96529311e7ef2a545c07d16ca8d8abc35f335d6020c837854de3403b4240419 · sha256:bf189b88ffe3ccef… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions
{"tags":["exploit"],"url":"https://github.com/libp2p/rust-libp2p/security/advisories/GHSA-cqfx-gf56-8x59"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c96529311e7ef2a545c07d16ca8d8abc35f335d6020c837854de3403b4240419 · sha256:bf189b88ffe3ccef… · /containers/adp/0/references/0
{"name":"https://github.com/libp2p/rust-libp2p/security/advisories/GHSA-cqfx-gf56-8x59","tags":["x_refsource_CONFIRM"],"url":"https://github.com/libp2p/rust-libp2p/security/advisories/GHSA-cqfx-gf56-8x59"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c96529311e7ef2a545c07d16ca8d8abc35f335d6020c837854de3403b4240419 · sha256:bf189b88ffe3ccef… · /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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