CVE-2026-40094

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{"affected": [{"affectedData": [{"product": "core-rs-albatross", "vendor": "nimiq", "versions": [{"status": "affected", "version": "< 1.4.0"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "nimiq-blockchain provides persistent block storage for Nimiq's Rust implementation. In versions 1.3.0 and prior, network-libp2p discovery accepts signed PeerContact updates from untrusted peers and stores them in a peer contact book, eventually leading to address book crash. A PeerContact can legally contain an empty addresses list (no intrinsic validation enforces non-empty). Later, PeerContactBook::known_peers builds an address book by taking addresses.first().expect(\"every peer should have at least one address\"). If the attacker has inserted a signed peer contact with addresses=[], any call to get_address_book (RPC/web client) can panic and crash the node/RPC task depending on panic settings. This issue has been fixed in version 1.4.0."}, {"lang": "es", "value": "nimiq-blockchain proporciona almacenamiento persistente de bloques para la implementaci\u00f3n en Rust de Nimiq. En las versiones 1.3.0 y anteriores, el descubrimiento de network-libp2p acepta actualizaciones firmadas de PeerContact de pares no confiables y las almacena en una libreta de contactos de pares, lo que finalmente lleva a un fallo de la libreta de direcciones. Un PeerContact puede contener legalmente una lista de direcciones vac\u00eda (ninguna validaci\u00f3n intr\u00ednseca exige que no est\u00e9 vac\u00eda). Posteriormente, PeerContactBook::known_peers construye una libreta de direcciones tomando addresses.first().expect('cada par deber\u00eda tener al menos una direcci\u00f3n'). Si el atacante ha insertado un contacto de par firmado con addresses=[], cualquier llamada a get_address_book (RPC/cliente web) puede entrar en p\u00e1nico y bloquear el nodo/la tarea RPC dependiendo de la configuraci\u00f3n de p\u00e1nico. Este problema ha sido solucionado en la versi\u00f3n 1.4.0."}], "id": "CVE-2026-40094", "lastModified": "2026-07-23T15:10:00.137", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 4.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 1.4, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-40094", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-05-21T12:21:08.211423Z", "version": "2.0.3"}}]}, "published": "2026-05-20T22:16:36.993", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/nimiq/core-rs-albatross/pull/3715"}, {"source": "security-advisories@github.com", "url": "https://github.com/nimiq/core-rs-albatross/releases/tag/v1.4.0"}, {"source": "security-advisories@github.com", "url": "https://github.com/nimiq/core-rs-albatross/security/advisories/GHSA-c45m-6x25-3cjq"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-754"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,1.4.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "core-rs-albatross", "source": "cna", "vendor": "nimiq"}, "product": "core-rs-albatross", "vendor": "nimiq"}], "created": "2026-05-20T22:30:40.726116+00:00", "updated": "2026-05-20T22:30:40.996607+00:00", "vendors": ["nimiq", "nimiq$PRODUCT$core-rs-albatross"]}