{"id":"CVE-2026-34067","sourceIdentifier":"security-advisories@github.com","published":"2026-04-22T21:17:07.760","lastModified":"2026-06-17T10:38:30.707","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"nimiq-transaction provides the transaction primitive to be used in Nimiq's Rust implementation. Prior to version 1.3.0, `HistoryTreeProof::verify` panics on a malformed proof where `history.len() != positions.len()` due to `assert_eq!(history.len(), positions.len())`. The proof object is derived from untrusted p2p responses (`ResponseTransactionsProof.proof`) and is therefore attacker-controlled at the network boundary until validated. A malicious peer could trigger a crash by returning a crafted inclusion proof with a length mismatch. The patch for this vulnerability is included as part of v1.3.0. No known workarounds are available."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"nimiq","product":"nimiq-transaction","versions":[{"version":"< 1.3.0","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L","baseScore":3.1,"baseSeverity":"LOW","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"LOW"},"exploitabilityScore":1.6,"impactScore":1.4},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","baseScore":6.5,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":2.8,"impactScore":3.6}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-04-23T14:17:49.301869Z","id":"CVE-2026-34067","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-617"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:nimiq:nimiq_proof-of-stake:*:*:*:*:*:rust:*:*","versionEndExcluding":"1.3.0","matchCriteriaId":"CD0CAAD1-7626-4A4A-A6F8-9DC46FE50731"}]}]}],"references":[{"url":"https://github.com/nimiq/core-rs-albatross/commit/6ff0800e8e031363e787c827d8d033e5694e4e6a","source":"security-advisories@github.com","tags":["Patch"]},{"url":"https://github.com/nimiq/core-rs-albatross/pull/3659","source":"security-advisories@github.com","tags":["Issue Tracking","Patch"]},{"url":"https://github.com/nimiq/core-rs-albatross/releases/tag/v1.3.0","source":"security-advisories@github.com","tags":["Release Notes"]},{"url":"https://github.com/nimiq/core-rs-albatross/security/advisories/GHSA-264v-m8fm-76jm","source":"security-advisories@github.com","tags":["Patch","Vendor Advisory"]}]}