{"answers":{"affected":"1 open source package ship an affected version, including github.com/insomniacslk/dhcp.","exploited":"There is no known exploitation of GO-2026-6237 in the wild and no public exploit code.","fix":"Upgrade github.com/insomniacslk/dhcp to 0.0.0-20260719225207-c76316d4aa82 or later.","what":"GO-2026-6237 is a denial of service vulnerability in github.com/insomniacslk/dhcp, published on 18 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for GO-2026-6237 and fix it if it is affected.\n\nWhat it is: GO-2026-6237 is a denial of service vulnerability in github.com/insomniacslk/dhcp, published on 18 Aug 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 GO-2026-6237 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- github.com/insomniacslk/dhcp (Go): affected all versions; fixed in 0.0.0-20260719225207-c76316d4aa82\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/GO-2026-6237/ (Markdown: https://insights.sbomify.com/GO-2026-6237/index.md)","id":"GO-2026-6237","markdown":"https://insights.sbomify.com/GO-2026-6237/index.md","name":"GO-2026-6237","record":{"aliases":[],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Go DHCP library","requires_auth":"none","summary":"A remote attacker can cause a denial of service in applications using the insomniacslk/dhcp library by sending a malformed IPv4 packet.","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":"In github.com/insomniacslk/dhcp/dhcpv4/nclient4, BroadcastRawUDPConn.ReadFrom does not validate that the IPv4 payload length is sufficient to hold a UDP header before calculating the DHCP payload length. A frame with an IPv4 total-length field specifying fewer than eight payload bytes results in a negative DHCP length, causing a panic in buf.Consume due to a negative slice bound.","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":"Denial of service via malformed IPv4 packet in github.com/insomniacslk/dhcp","id":"GO-2026-6237","indexable":true,"kev":null,"kind":"advisory","links":{"ecosystem":"Go","product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":1,"n_references":null,"packages":[{"ecosystem":"Go","fixed":["0.0.0-20260719225207-c76316d4aa82"],"introduced":["0"],"last_affected":[],"package":"github.com/insomniacslk/dhcp","purl":"pkg:golang/github.com/insomniacslk/dhcp","source":"GO-2026-6237"}],"products":null,"published":"2026-08-18","related":[],"sources":[{"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 remote attacker can cause a denial of service in applications using the insomniacslk/dhcp library by sending a malformed IPv4 packet.","url":"https://insights.sbomify.com/GO-2026-6237/"}