{"answers":{"affected":"12 open source packages ship an affected version, including github.com/babylonlabs-io/babylon, github.com/babylonlabs-io/babylon/v2 and github.com/babylonlabs-io/babylon/v3.","exploited":"There is no known exploitation of GHSA-m6wq-66p2-c8pc in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"GHSA-m6wq-66p2-c8pc is a vulnerability in github.com/babylonlabs-io/babylon, published on 8 Dec 2025. An attacker needs administrator access to exploit it, with no action from the victim."},"fix_prompt":"Check this codebase for GHSA-m6wq-66p2-c8pc and fix it if it is affected.\n\nWhat it is: GHSA-m6wq-66p2-c8pc is a vulnerability in github.com/babylonlabs-io/babylon, published on 8 Dec 2025. An attacker needs administrator access to exploit it, with no action from the victim.\nExploitation: There is no known exploitation of GHSA-m6wq-66p2-c8pc in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- github.com/babylonlabs-io/babylon (Go): affected all versions; no fix listed\n- github.com/babylonlabs-io/babylon (Go): affected all versions up to 1.1.0; no fix listed\n- github.com/babylonlabs-io/babylon (Go): affected all versions up to 1.1.0; no fix listed\n- github.com/babylonlabs-io/babylon/v2 (Go): affected all versions; no fix listed\n- github.com/babylonlabs-io/babylon/v2 (Go): affected all versions up to 2.3.2; no fix listed\n- github.com/babylonlabs-io/babylon/v2 (Go): affected all versions up to 2.3.2; no fix listed\n- github.com/babylonlabs-io/babylon/v3 (Go): affected all versions; no fix listed\n- github.com/babylonlabs-io/babylon/v3 (Go): affected all versions up to 3.0.0-snapshot.250805a; no fix listed\n- github.com/babylonlabs-io/babylon/v3 (Go): affected all versions up to 3.0.0-snapshot.250805a; no fix listed\n- github.com/babylonlabs-io/babylon/v4 (Go): affected all versions; fixed in 4.2.0\n- github.com/babylonlabs-io/babylon/v4 (Go): affected all versions; fixed in 4.2.0\n- github.com/babylonlabs-io/babylon/v4 (Go): affected all versions; fixed in 4.2.0\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-m6wq-66p2-c8pc/ (Markdown: https://insights.sbomify.com/GHSA-m6wq-66p2-c8pc/index.md)","id":"GHSA-m6wq-66p2-c8pc","markdown":"https://insights.sbomify.com/GHSA-m6wq-66p2-c8pc/index.md","name":"GHSA-m6wq-66p2-c8pc","record":{"aliases":["GO-2025-4211"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Babylon consensus node","requires_auth":"high_privilege","summary":"A malicious validator can crash consensus nodes by sending vote extensions with missing block hashes, causing a null pointer dereference panic.","user_interaction":"not_required","vuln_class":"null_dereference"},"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\nA vulnerability exists in Babylon’s BLS vote extension processing where a malicious active validator can submit a VoteExtension with the `block_hash` field omitted from the protobuf serialization. Because protobuf fields are optional, unmarshalling succeeds but leaves `BlockHash` as nil. Babylon then dereferences this nil pointer in consensus-critical code paths (notably `VerifyVoteExtension`, and also proposal-time vote verification), causing a runtime panic.\n\n### Impact\n\nIntermittent validator crashes at epoch boundaries, which would slow down the creation of the epoch boundary block.\n\n### Finder \n\nVulnerability discovered by:\n\n- @GrumpyLaurie55348","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 Nil BlockHash in BLS vote extensions triggers panics in consensus handlers","id":"GHSA-m6wq-66p2-c8pc","indexable":true,"kev":null,"kind":"advisory","links":{"ecosystem":"Go","product":null,"products":[],"type":"null_dereference","year":"2025"},"n_packages":12,"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-2025-4211"},{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":["1.1.0"],"package":"github.com/babylonlabs-io/babylon","purl":null,"source":"GHSA-m6wq-66p2-c8pc"},{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":["1.1.0"],"package":"github.com/babylonlabs-io/babylon","purl":"pkg:golang/github.com/babylonlabs-io/babylon","source":"GHSA-m6wq-66p2-c8pc"},{"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-2025-4211"},{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":["2.3.2"],"package":"github.com/babylonlabs-io/babylon/v2","purl":null,"source":"GHSA-m6wq-66p2-c8pc"},{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":["2.3.2"],"package":"github.com/babylonlabs-io/babylon/v2","purl":"pkg:golang/github.com/babylonlabs-io/babylon/v2","source":"GHSA-m6wq-66p2-c8pc"},{"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-2025-4211"},{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":["3.0.0-snapshot.250805a"],"package":"github.com/babylonlabs-io/babylon/v3","purl":null,"source":"GHSA-m6wq-66p2-c8pc"},{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":["3.0.0-snapshot.250805a"],"package":"github.com/babylonlabs-io/babylon/v3","purl":"pkg:golang/github.com/babylonlabs-io/babylon/v3","source":"GHSA-m6wq-66p2-c8pc"},{"ecosystem":"Go","fixed":["4.2.0"],"introduced":["0"],"last_affected":[],"package":"github.com/babylonlabs-io/babylon/v4","purl":null,"source":"GHSA-m6wq-66p2-c8pc"},{"ecosystem":"Go","fixed":["4.2.0"],"introduced":["0"],"last_affected":[],"package":"github.com/babylonlabs-io/babylon/v4","purl":"pkg:golang/github.com/babylonlabs-io/babylon/v4","source":"GHSA-m6wq-66p2-c8pc"},{"ecosystem":"Go","fixed":["4.2.0"],"introduced":["0"],"last_affected":[],"package":"github.com/babylonlabs-io/babylon/v4","purl":"pkg:golang/github.com/babylonlabs-io/babylon/v4","source":"GO-2025-4211"}],"products":null,"published":"2025-12-08","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":"A malicious validator can crash consensus nodes by sending vote extensions with missing block hashes, causing a null pointer dereference panic.","url":"https://insights.sbomify.com/GHSA-m6wq-66p2-c8pc/"}