{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-40583 exists.","fix":"No fix has been published for CVE-2026-40583 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-40583 is a high-severity vulnerability in UltraDAGcom core, published on 21 Apr 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-2026-40583 and fix it if it is affected.\n\nWhat it is: CVE-2026-40583 is a high-severity vulnerability in UltraDAGcom core, published on 21 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-40583 exists.\n\nAffected product: UltraDAGcom core. 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-2026-40583/ (Markdown: https://insights.sbomify.com/CVE-2026-40583/index.md)","id":"CVE-2026-40583","markdown":"https://insights.sbomify.com/CVE-2026-40583/index.md","name":"CVE-2026-40583","record":{"aliases":["GHSA-q8wx-2crx-c7pp"],"analysis":{"component_type":"other","fix_type":"no_fix_stated","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Rust blockchain node","requires_auth":"none","summary":"Attackers can trigger a fatal halt in the UltraDAG blockchain by submitting unauthorized votes that mutate state before authorization checks fail.","user_interaction":"not_required","vuln_class":"business_logic"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"ultradag","vendor":"ultradag"}],"cvss":{"score":8.8,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/U:Red","version":"4.0"},"cwes":[{"id":"CWE-696","name":"Incorrect Behavior Order"},{"id":"CWE-460","name":"Improper Cleanup on Thrown Exception"}],"description":"UltraDAG is a minimal DAG-BFT blockchain in Rust. In version 0.1, a non-council attacker can submit a signed SmartOp::Vote transaction that passes signature, nonce, and balance prechecks, but fails authorization only after state mutation has already occurred.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"UltraDAG: SmartOp Vote Path Triggers Fatal Supply Invariant Halt","id":"CVE-2026-40583","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"business_logic","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"RansomLook - Improper Filtering of Private Location Entries in API Endpoints Leads to Information Exposure","id":"CVE-2026-40584"},"packages":[],"prev":{"headline":"ChurchCRM: Authentication Bypass in `/api/public/user/login` Allows Bypass of 2FA and Account Lockout","id":"CVE-2026-40582"},"products":["core"],"published":"2026-04-21","related":[],"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":"yes","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-04-21","vendors":["UltraDAGcom"]},"summary":"Attackers can trigger a fatal halt in the UltraDAG blockchain by submitting unauthorized votes that mutate state before authorization checks fail.","url":"https://insights.sbomify.com/CVE-2026-40583/"}