{"answers":{"affected":"6 open source packages ship an affected version, including github.com/babylonlabs-io/babylon/v4, github.com/babylonlabs-io/babylon and github.com/babylonlabs-io/babylon/v2.","exploited":"There is no known exploitation of GHSA-2fcv-qww3-9v6h in the wild and no public exploit code.","fix":"Upgrade github.com/babylonlabs-io/babylon/v4 to 4.1.0 or later.","what":"GHSA-2fcv-qww3-9v6h is a denial of service vulnerability in github.com/babylonlabs-io/babylon, published on 24 Nov 2025. An attacker needs administrator access to exploit it, with no action from the victim."},"fix_prompt":"Check this codebase for GHSA-2fcv-qww3-9v6h and fix it if it is affected.\n\nWhat it is: GHSA-2fcv-qww3-9v6h is a denial of service vulnerability in github.com/babylonlabs-io/babylon, published on 24 Nov 2025. An attacker needs administrator access to exploit it, with no action from the victim.\nExploitation: There is no known exploitation of GHSA-2fcv-qww3-9v6h in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- github.com/babylonlabs-io/babylon/v4 (Go): affected all versions; fixed in 4.1.0\n- github.com/babylonlabs-io/babylon/v4 (Go): affected all versions; fixed in 4.1.0\n- github.com/babylonlabs-io/babylon/v4 (Go): affected all versions; fixed in 4.1.0\n- github.com/babylonlabs-io/babylon (Go): affected all versions; no fix listed\n- github.com/babylonlabs-io/babylon/v2 (Go): affected all versions; no fix listed\n- github.com/babylonlabs-io/babylon/v3 (Go): affected all versions; no fix listed\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/GHSA-2fcv-qww3-9v6h/ (Markdown: https://insights.sbomify.com/GHSA-2fcv-qww3-9v6h/index.md)","id":"GHSA-2fcv-qww3-9v6h","markdown":"https://insights.sbomify.com/GHSA-2fcv-qww3-9v6h/index.md","name":"GHSA-2fcv-qww3-9v6h","record":{"aliases":["GO-2025-4157"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Babylon blockchain node","requires_auth":"high_privilege","summary":"Adversarial validators can halt the blockchain by sending malformed vote extensions, requiring high-privilege access to exploit.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"### Summary\n\nAdversarial validators can send large vote extensions by using non-existing protobuf tags. This will result in the rejection of the subsequent block proposal. Eventually, all block proposals will be rejected by all validators.\n\n### Impact\n\nA small group of adversarial validators can cause a chain halt.","ecosystems":["Go"],"exploits":{"exploitdb":null,"first_seen":null,"github_poc":null,"max_poc_stars":null,"metasploit":null,"nuclei":null,"refs":[],"tier":null},"has_fix":true,"headline":"Babylon's malformed vote extensions are not rejected","id":"GHSA-2fcv-qww3-9v6h","indexable":true,"kev":null,"kind":"advisory","links":{"ecosystem":"Go","product":null,"products":[],"type":"denial_of_service","year":"2025"},"n_packages":6,"n_references":null,"packages":[{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":[],"package":"github.com/babylonlabs-io/babylon","purl":"pkg:golang/github.com/babylonlabs-io/babylon","source":"GO-2025-4157"},{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":[],"package":"github.com/babylonlabs-io/babylon/v2","purl":"pkg:golang/github.com/babylonlabs-io/babylon/v2","source":"GO-2025-4157"},{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":[],"package":"github.com/babylonlabs-io/babylon/v3","purl":"pkg:golang/github.com/babylonlabs-io/babylon/v3","source":"GO-2025-4157"},{"ecosystem":"Go","fixed":["4.1.0"],"introduced":["0"],"last_affected":[],"package":"github.com/babylonlabs-io/babylon/v4","purl":null,"source":"GHSA-2fcv-qww3-9v6h"},{"ecosystem":"Go","fixed":["4.1.0"],"introduced":["0"],"last_affected":[],"package":"github.com/babylonlabs-io/babylon/v4","purl":"pkg:golang/github.com/babylonlabs-io/babylon/v4","source":"GHSA-2fcv-qww3-9v6h"},{"ecosystem":"Go","fixed":["4.1.0"],"introduced":["0"],"last_affected":[],"package":"github.com/babylonlabs-io/babylon/v4","purl":"pkg:golang/github.com/babylonlabs-io/babylon/v4","source":"GO-2025-4157"}],"products":null,"published":"2025-11-24","related":[],"sources":[{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"Go Vulnerability Database","prefix":"GO"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":null,"updated":null,"vendors":null},"summary":"Adversarial validators can halt the blockchain by sending malformed vote extensions, requiring high-privilege access to exploit.","url":"https://insights.sbomify.com/GHSA-2fcv-qww3-9v6h/"}