{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-89146", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-09-11T01:23:29.845Z", "datePublished": "2026-09-11T10:46:56.275Z", "dateUpdated": "2026-09-11T10:46:56.275Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-09-11T10:46:56.275Z"}, "datePublic": "2026-09-09T00:00:00.000Z", "title": "libp2p-rendezvous through 0.17.1 Denial of Service via Unbounded Registration TTL in Discovery Responses", "descriptions": [{"lang": "en", "value": "libp2p-rendezvous through 0.17.1 fails to validate registration TTL values in discovery responses, allowing attackers to trigger timer arithmetic overflow. A malicious rendezvous server can send a discovery response with an unbounded TTL value that causes the client node process to panic when computing the expiry timer."}], "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-190", "description": "CWE-190: Integer Overflow or Wraparound", "type": "CWE"}]}, {"descriptions": [{"lang": "en", "cweId": "CWE-617", "description": "CWE-617: Reachable Assertion", "type": "CWE"}]}], "affected": [{"defaultStatus": "unaffected", "vendor": "libp2p", "product": "libp2p-rendezvous", "packageName": "libp2p-rendezvous", "packageURL": "pkg:cargo/libp2p-rendezvous", "collectionURL": "https://crates.io", "repo": "https://github.com/libp2p/rust-libp2p", "versions": [{"version": "0", "lessThanOrEqual": "0.17.1", "status": "affected", "versionType": "semver"}]}], "cpeApplicability": [], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH", "version": "3.1", "baseSeverity": "HIGH", "baseScore": 7.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}}, {"format": "CVSS", "cvssV4_0": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 8.7, "baseSeverity": "HIGH"}}], "references": [{"url": "https://gist.github.com/thesmartshadow/25ef03f7ebbd12118a9d27695c885989", "name": "libp2p-rendezvous registration lifetime denial of service", "tags": ["third-party-advisory"]}, {"url": "https://docs.rs/crate/libp2p-rendezvous/0.17.1/source/src/client.rs", "name": "src/client.rs at libp2p-rendezvous 0.17.1", "tags": ["technical-description"]}, {"url": "https://github.com/libp2p/rust-libp2p", "name": "Product", "tags": ["product"]}, {"name": "VulnCheck Advisory: libp2p-rendezvous through 0.17.1 Denial of Service via Unbounded Registration TTL in Discovery Responses", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/libp2p-rendezvous-through-0.17.1-denial-of-service-via-unbounded-registration-ttl-in-discovery-responses"}], "credits": [{"lang": "en", "value": "Ali Firas", "type": "reporter"}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "vulncheck-endgame"}}}}

{}

{"affected": [{"affectedData": [{"collectionURL": "https://crates.io", "defaultStatus": "unaffected", "packageName": "libp2p-rendezvous", "packageURL": "pkg:cargo/libp2p-rendezvous", "product": "libp2p-rendezvous", "repo": "https://github.com/libp2p/rust-libp2p", "vendor": "libp2p", "versions": [{"lessThanOrEqual": "0.17.1", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "[email protected]"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "libp2p-rendezvous through 0.17.1 fails to validate registration TTL values in discovery responses, allowing attackers to trigger timer arithmetic overflow. A malicious rendezvous server can send a discovery response with an unbounded TTL value that causes the client node process to panic when computing the expiry timer."}], "id": "CVE-2026-89146", "lastModified": "2026-09-11T11:16:57.867", "metrics": {"cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "[email protected]", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.7, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "[email protected]", "type": "Secondary"}]}, "published": "2026-09-11T11:16:57.867", "references": [{"source": "[email protected]", "url": "https://docs.rs/crate/libp2p-rendezvous/0.17.1/source/src/client.rs"}, {"source": "[email protected]", "url": "https://gist.github.com/thesmartshadow/25ef03f7ebbd12118a9d27695c885989"}, {"source": "[email protected]", "url": "https://github.com/libp2p/rust-libp2p"}, {"source": "[email protected]", "url": "https://www.vulncheck.com/advisories/libp2p-rendezvous-through-0.17.1-denial-of-service-via-unbounded-registration-ttl-in-discovery-responses"}], "sourceIdentifier": "[email protected]", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-190"}, {"lang": "en", "value": "CWE-617"}], "source": "[email protected]", "type": "Primary"}]}

{}

{"created": "2026-09-11T13:00:16.163382+00:00", "updated": "2026-09-11T14:30:19.130180+00:00", "vendors": []}