{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-28402 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-28402 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-28402 is a high-severity denial of service vulnerability in nimiq core-rs-albatross, published on 27 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-28402 and fix it if it is affected.\n\nWhat it is: CVE-2026-28402 is a high-severity denial of service vulnerability in nimiq core-rs-albatross, published on 27 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-28402 in the wild and no public exploit code.\n\nAffected product: nimiq core-rs-albatross. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-28402/ (Markdown: https://insights.sbomify.com/CVE-2026-28402/index.md)","id":"CVE-2026-28402","markdown":"https://insights.sbomify.com/CVE-2026-28402/index.md","name":"CVE-2026-28402","record":{"aliases":["GHSA-7wh6-rmxx-ww47"],"analysis":{"component_type":"other","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Nimiq blockchain node","requires_auth":"low_privilege","summary":"A malicious validator can crash other validator nodes by publishing macro block proposals with mismatched body roots, requiring an upgrade to fix.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"nimiq_proof-of-stake","vendor":"nimiq"}],"cvss":{"score":7.1,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H","version":"3.1"},"cwes":[{"id":"CWE-354","name":"Improper Validation of Integrity Check Value"}],"description":"nimiq/core-rs-albatross is a Rust implementation of the Nimiq Proof-of-Stake protocol based on the Albatross consensus algorithm. Prior to version 1.2.2, a malicious or compromised validator that is elected as proposer can publish a macro block proposal where `header.body_root` does not match the actual macro body hash. The proposal can pass proposal verification because the macro proposal verification path validates the header but does not validate the binding `body_root == hash(body)`; later code expects this binding and may panic on mismatch, crashing validators. Note that the impact is only for validator nodes. The patch for this vulnerability is formally released as part of v1.2.2. The patch adds the corresponding body root verification in the proposal checks. No known workarounds are available.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"nimiq/core-rs-albatross's nimiq-blockchain missing proposal body root verification","id":"CVE-2026-28402","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":0,"n_references":4,"next":{"headline":"Textream Cross-Site WebSocket Hijacking (CSWSH) vulnerability","id":"CVE-2026-28403"},"packages":[],"prev":{"headline":"NocoDB: Stored Cross-Site Scripting via Rich Text Cells","id":"CVE-2026-28401"},"products":["core-rs-albatross"],"published":"2026-02-27","related":[{"cvss_score":9.6,"headline":"nimiq-block has skip block quorum bypass via out-of-range BitSet indices \u0026 u16 truncation","id":"CVE-2026-33471","kev_date_added":null,"published":"2026-04-22"},{"cvss_score":8.1,"headline":"nimiq-blockchain is missing a wall-clock upper bound on block timestamps","id":"CVE-2026-40093","kev_date_added":null,"published":"2026-04-09"},{"cvss_score":7.5,"headline":"network-libp2p: Peer can crash the node by opening discovery protocol substream twice","id":"CVE-2026-34063","kev_date_added":null,"published":"2026-04-22"},{"cvss_score":7.5,"headline":"nimiq-primitives: Node crash due to missing interlink validation in election macro block proposals","id":"CVE-2026-34065","kev_date_added":null,"published":"2026-04-22"},{"cvss_score":7.5,"headline":"Nimiq: Remote crash via off-by-one signer bounds check in proposal buffer","id":"CVE-2026-32605","kev_date_added":null,"published":"2026-04-13"},{"cvss_score":7.5,"headline":"nimiq/core-rs-albatross: Discovery handshake limit could underflow and later provoke a deterministic overflow panic","id":"CVE-2026-33184","kev_date_added":null,"published":"2026-04-03"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-03-03","vendors":["nimiq"]},"summary":"A malicious validator can crash other validator nodes by publishing macro block proposals with mismatched body roots, requiring an upgrade to fix.","url":"https://insights.sbomify.com/CVE-2026-28402/"}