{"id":"GHSA-pf4j-pf3w-95f9","revision":null,"records":[{"revision":"5580d43ca59548669e3cc80e7012b097","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-34068","aliases":[],"title":"nimiq-transaction: UpdateValidator transactions allows voting key change without proof-of-knowledge","description":"nimiq-transaction provides the transaction primitive to be used in Nimiq's Rust implementation. Prior to version 1.3.0, the staking contract accepts `UpdateValidator` transactions that set `new_voting_key=Some(...)` while omitting `new_proof_of_knowledge`. this skips the proof-of-knowledge requirement that is needed to prevent BLS rogue-key attacks when public keys are aggregated. Because tendermint macro block justification verification aggregates validator voting keys and verifies a single aggregated BLS signature against that aggregate public key, a rogue-key voting key in the validator set can allow an attacker to forge a quorum-looking justification while only producing a single signature. While the impact is critical, the exploitability is low: The voting keys are fixed for the epoch, so the attacker would need to know the next epoch validator set (chosen through VRF), which is unlikely. The patch for this vulnerability is included as part of v1.3.0. No known workarounds are available.","state":0,"publishedAt":"2026-04-22T19:55:08.219+00:00","modifiedAt":"2026-04-23T12:56:27.98+00:00","affected":[{"ecosystem":"Vendor product","name":"nimiq-transaction","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"nimiq\",\n                    \"product\": \"nimiq-transaction\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 1.3.0\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N","score":6.8,"severity":"MEDIUM"}],"references":["https://github.com/nimiq/core-rs-albatross/security/advisories/GHSA-pf4j-pf3w-95f9","https://github.com/nimiq/core-rs-albatross/pull/3654","https://github.com/nimiq/core-rs-albatross/commit/e7f0ab7d2115e17d6e5548ddc60f10df1a5d645f","https://github.com/nimiq/core-rs-albatross/releases/tag/v1.3.0"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-34068","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-34068","identifiers":["CVE-2026-34068"]},"retained":false,"historicalAffected":[]},{"revision":"538dabf97d3c4b45a0f995a4bc3ae742","observedAt":"2026-11-01T06:05:27.942+00:00","statement":{"source":"euvd","id":"EUVD-2026-25086","aliases":["CVE-2026-34068"],"title":"nimiq-transaction provides the transaction primitive to be used in Nimiq's Rust implementation. Prior to version 1.3.0, the staking contract accepts `UpdateValidator` transactions that set `new_voting_key=Some(...)` while omitting `new_proo…","description":"nimiq-transaction provides the transaction primitive to be used in Nimiq's Rust implementation. Prior to version 1.3.0, the staking contract accepts `UpdateValidator` transactions that set `new_voting_key=Some(...)` while omitting `new_proof_of_knowledge`. this skips the proof-of-knowledge requirement that is needed to prevent BLS rogue-key attacks when public keys are aggregated. Because tendermint macro block justification verification aggregates validator voting keys and verifies a single aggregated BLS signature against that aggregate public key, a rogue-key voting key in the validator set can allow an attacker to forge a quorum-looking justification while only producing a single signature. While the impact is critical, the exploitability is low: The voting keys are fixed for the epoch, so the attacker would need to know the next epoch validator set (chosen through VRF), which is unlikely. The patch for this vulnerability is included as part of v1.3.0. No known workarounds are available.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N","score":6.8,"severity":null}],"references":["https://github.com/nimiq/core-rs-albatross/security/advisories/GHSA-pf4j-pf3w-95f9","https://github.com/nimiq/core-rs-albatross/pull/3654","https://github.com/nimiq/core-rs-albatross/commit/e7f0ab7d2115e17d6e5548ddc60f10df1a5d645f","https://github.com/nimiq/core-rs-albatross/releases/tag/v1.3.0"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-25086","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Apr 22, 2026, 7:55:08 PM","dateUpdated":"Apr 23, 2026, 12:56:27 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-25086","identifiers":["EUVD-2026-25086","CVE-2026-34068"]},"retained":false,"historicalAffected":[]},{"revision":"732a08d8474f4261b3029ac39e0ebaaa","observedAt":"2026-10-27T09:03:00.507+00:00","statement":{"source":"nvd","id":"CVE-2026-34068","aliases":[],"title":"nimiq-transaction provides the transaction primitive to be used in Nimiq's Rust implementation. Prior to version 1.3.0, the staking contract accepts `UpdateValidator` transactions that set `new_voting_key=Some(...)` while omitting `new_proo…","description":"nimiq-transaction provides the transaction primitive to be used in Nimiq's Rust implementation. Prior to version 1.3.0, the staking contract accepts `UpdateValidator` transactions that set `new_voting_key=Some(...)` while omitting `new_proof_of_knowledge`. this skips the proof-of-knowledge requirement that is needed to prevent BLS rogue-key attacks when public keys are aggregated. Because tendermint macro block justification verification aggregates validator voting keys and verifies a single aggregated BLS signature against that aggregate public key, a rogue-key voting key in the validator set can allow an attacker to forge a quorum-looking justification while only producing a single signature. While the impact is critical, the exploitability is low: The voting keys are fixed for the epoch, so the attacker would need to know the next epoch validator set (chosen through VRF), which is unlikely. The patch for this vulnerability is included as part of v1.3.0. No known workarounds are available.","state":0,"publishedAt":"2026-04-22T21:17:08.197+00:00","modifiedAt":"2026-10-26T22:10:00.163+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N","score":6.8,"severity":"MEDIUM"}],"references":["https://github.com/nimiq/core-rs-albatross/commit/e7f0ab7d2115e17d6e5548ddc60f10df1a5d645f","https://github.com/nimiq/core-rs-albatross/pull/3654","https://github.com/nimiq/core-rs-albatross/releases/tag/v1.3.0","https://github.com/nimiq/core-rs-albatross/security/advisories/GHSA-pf4j-pf3w-95f9"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-34068","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Analyzed","weaknesses":["CWE-347"],"productCriteria":["cpe:2.3:a:nimiq:nimiq_proof-of-stake:*:*:*:*:*:rust:*:*"],"sourceDates":{"published":"2026-04-22T21:17:08.197","lastModified":"2026-10-26T22:10:00.163"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-34068","identifiers":["CVE-2026-34068"]},"retained":false,"historicalAffected":[]},{"revision":"44c95a562b394be1a13f966127565456","observedAt":"2026-10-24T13:19:54.901+00:00","statement":{"source":"osv","id":"GHSA-pf4j-pf3w-95f9","aliases":["CVE-2026-34068"],"title":"nimiq-transaction: UpdateValidator transactions allows voting key change without proof-of-knowledge","description":"### Impact\nThe staking contract accepts `UpdateValidator` transactions that set `new_voting_key=Some(...)` while omitting `new_proof_of_knowledge`. this skips the proof-of-knowledge requirement that is needed to prevent BLS rogue-key attacks when public keys are aggregated.\n\nBecause tendermint macro block justification verification aggregates validator voting keys and verifies a single aggregated BLS signature against that aggregate public key, a rogue-key voting key in the validator set can allow an attacker to forge a quorum-looking justification while only producing a single signature.\n\nWhile the impact is critical, the exploitability is low: The voting keys are fixed for the epoch, so the attacker would need to know the next epoch validator set (chosen through VRF), which is unlikely.\n\n### Patches\n[The patch for this vulnerability](https://github.com/nimiq/core-rs-albatross/commit/e7f0ab7d2115e17d6e5548ddc60f10df1a5d645f) is included as part of [v1.3.0](https://github.com/nimiq/core-rs-albatross/releases/tag/v1.3.0).\n\n### Workarounds\nNo known workarounds.","state":0,"publishedAt":"2026-04-22T19:22:53+00:00","modifiedAt":"2026-05-05T16:09:54.224832+00:00","affected":[{"ecosystem":"crates.io","name":"nimiq-transaction","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"last_affected","version":"0.2.0"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"MODERATE"}],"references":["https://github.com/nimiq/core-rs-albatross/security/advisories/GHSA-pf4j-pf3w-95f9","https://nvd.nist.gov/vuln/detail/CVE-2026-34068","https://github.com/nimiq/core-rs-albatross/pull/3654","https://github.com/nimiq/core-rs-albatross/commit/e7f0ab7d2115e17d6e5548ddc60f10df1a5d645f","https://github.com/nimiq/core-rs-albatross","https://github.com/nimiq/core-rs-albatross/releases/tag/v1.3.0"],"sourceUrl":"https://github.com/advisories/GHSA-pf4j-pf3w-95f9","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-pf4j-pf3w-95f9","identifiers":["GHSA-pf4j-pf3w-95f9","CVE-2026-34068"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. Missing entries do not establish absence of exploitation.","generation":"2026-11-01T14:57:20.8260435+00:00","complete":true,"records":1766,"lastAttemptAt":"2026-11-01T14:57:20.8260435+00:00","lastSuccessAt":"2026-11-01T14:57:20.9959229+00:00","error":null,"lastVerifiedAt":"2026-11-01T14:57:20.9959241+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"cve-program","scope":"Official CVE Program baseline and cumulative hourly delta; all vendors, published and rejected records","generation":"cve-aece262bb10a694367a43c24d730aa8e8dc171723eaec4c15cdd32f04bda103f-d531ae12fd03a30fe810f370dfdaee6d5ce6932749e1e8d224c6f881789a42e1","complete":true,"records":417653,"lastAttemptAt":"2026-11-01T14:57:20.4936635+00:00","lastSuccessAt":"2026-11-01T14:57:20.4630684+00:00","error":null,"lastVerifiedAt":"2026-11-01T14:57:20.4936635+00:00","snapshotPublishedAt":"2026-11-01T14:28:11+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"euvd","scope":"Rolling EUVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-7a3763b612e249af8e21823e33cbf35e","complete":false,"records":13568,"lastAttemptAt":"2026-11-01T15:09:18.8870785+00:00","lastSuccessAt":"2026-11-01T15:09:18.883+00:00","error":null,"lastVerifiedAt":"2026-11-01T15:09:18.883+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13449,"expectedIdentifiers":13637,"failedIdentifiers":0},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-11-01T14:57:20.8260435+00:00","complete":true,"records":1095,"lastAttemptAt":"2026-11-01T14:57:20.8260435+00:00","lastSuccessAt":"2026-11-01T14:57:20.9969402+00:00","error":null,"lastVerifiedAt":"2026-11-01T14:57:20.9969412+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-6f777ca48c9f4a26b09cd3abcf1e29ef","complete":true,"records":13580,"lastAttemptAt":"2026-11-01T14:57:28.522156+00:00","lastSuccessAt":"2026-11-01T14:57:28.517+00:00","error":null,"lastVerifiedAt":"2026-11-01T14:57:28.517+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13637,"expectedIdentifiers":13637,"failedIdentifiers":0},{"source":"osv:Go","scope":"Complete OSV Go ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"go-21dcd6662970dfea02e4ea60ee637115e8d92664947484d2b9276b3f6568a84f","complete":true,"records":9815,"lastAttemptAt":"2026-11-01T14:57:20.7705737+00:00","lastSuccessAt":"2026-10-30T23:47:34.1817587+00:00","error":null,"lastVerifiedAt":"2026-11-01T14:57:20.7705737+00:00","snapshotPublishedAt":"2026-10-30T23:33:17+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:NuGet","scope":"Complete OSV NuGet ecosystem archive, including GitHub Advisory Database records; NuGet version matching only","generation":"nuget-2de9ccc5290f060c7aa63f89c25dd76f655a64ba1aba7c05c97fa3bee4f09899","complete":true,"records":1967,"lastAttemptAt":"2026-11-01T14:57:20.5439977+00:00","lastSuccessAt":"2026-10-28T20:55:34.2982937+00:00","error":null,"lastVerifiedAt":"2026-11-01T14:57:20.5439977+00:00","snapshotPublishedAt":"2026-10-28T20:03:08+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:crates.io","scope":"Complete OSV crates.io ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"crates.io-f95f76cd406ae5bae3de632ad37fd2d5160b44f5e6b51748ac6f8f0c0c88e72b","complete":true,"records":3028,"lastAttemptAt":"2026-11-01T14:57:20.7877402+00:00","lastSuccessAt":"2026-10-30T23:47:38.4914494+00:00","error":null,"lastVerifiedAt":"2026-11-01T14:57:20.7877402+00:00","snapshotPublishedAt":"2026-10-30T23:18:12+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:npm","scope":"Complete OSV npm ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"npm-55acacd40a7aab88cf530cfddf98233a5d800cfc6bb1883653ecf5bee50f4426","complete":true,"records":230996,"lastAttemptAt":"2026-11-01T14:57:20.6511816+00:00","lastSuccessAt":"2026-11-01T09:06:49.6961926+00:00","error":null,"lastVerifiedAt":"2026-11-01T14:57:20.6511816+00:00","snapshotPublishedAt":"2026-11-01T08:33:39+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null}]}