{"answers":{"affected":"4 open source packages ship an affected version, including zebra-script and zebrad.","exploited":"There is no known exploitation of CVE-2026-104435 in the wild and no public exploit code.","fix":"Upgrade zebra-script to 6.0.1 or later.","what":"CVE-2026-104435 is a high-severity vulnerability in ZcashFoundation zebra, published on 2 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-104435 and fix it if it is affected.\n\nWhat it is: CVE-2026-104435 is a high-severity vulnerability in ZcashFoundation zebra, published on 2 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-104435 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- zebra-script (crates.io): affected all versions; fixed in 6.0.1\n- zebra-script (crates.io): affected all versions; fixed in 6.0.1\n- zebrad (crates.io): affected all versions; fixed in 4.4.1\n- zebrad (crates.io): affected all versions; fixed in 4.4.1\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-2026-104435/ (Markdown: https://insights.sbomify.com/CVE-2026-104435/index.md)","id":"CVE-2026-104435","markdown":"https://insights.sbomify.com/CVE-2026-104435/index.md","name":"CVE-2026-104435","record":{"aliases":["GHSA-gm38-j348-x4mq","GHSA-pvmv-cwg8-v6c8"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Zcash node software","requires_auth":"none","summary":"Attackers can cause network consensus splits by broadcasting crafted transactions that Zebra accepts but other nodes reject, leading to potential denial of service.","user_interaction":"not_required","vuln_class":"business_logic"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":8.3,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-347","name":"Improper Verification of Cryptographic Signature"}],"description":"Zebra zebrad 4.4.0 and zebra-script 6.0.0 fail to enforce a ZIP-244 consensus rule, accepting V5 transparent inputs signed with SIGHASH_SINGLE that lack a corresponding output. Attackers can broadcast crafted V5 transactions with more inputs than outputs that Zebra accepts but zcashd rejects, causing a network consensus split.","ecosystems":["crates.io"],"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":"Zebra 4.4.0 Consensus Divergence via V5 SIGHASH_SINGLE Without Output","id":"CVE-2026-104435","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"crates.io","product":null,"products":[],"type":"business_logic","year":"2026"},"n_packages":4,"n_references":2,"next":{"headline":"Zebra before 4.5.0 CPU Amplification via Uncapped getblocks/getheaders Locator Length","id":"CVE-2026-104436"},"packages":[{"ecosystem":"crates.io","fixed":["6.0.1"],"introduced":["0"],"last_affected":[],"package":"zebra-script","purl":null,"source":"GHSA-pvmv-cwg8-v6c8"},{"ecosystem":"crates.io","fixed":["6.0.1"],"introduced":["0"],"last_affected":[],"package":"zebra-script","purl":"pkg:cargo/zebra-script","source":"GHSA-pvmv-cwg8-v6c8"},{"ecosystem":"crates.io","fixed":["4.4.1"],"introduced":["0"],"last_affected":[],"package":"zebrad","purl":null,"source":"GHSA-pvmv-cwg8-v6c8"},{"ecosystem":"crates.io","fixed":["4.4.1"],"introduced":["0"],"last_affected":[],"package":"zebrad","purl":"pkg:cargo/zebrad","source":"GHSA-pvmv-cwg8-v6c8"}],"prev":{"headline":"Zebra before 8.0.0 Denial of Service via z_listunifiedreceivers RPC","id":"CVE-2026-104434"},"products":["zebra"],"published":"2026-10-02","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"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":"2026-10-02","vendors":["ZcashFoundation"]},"summary":"Attackers can cause network consensus splits by broadcasting crafted transactions that Zebra accepts but other nodes reject, leading to potential denial of service.","url":"https://insights.sbomify.com/CVE-2026-104435/"}