{"answers":{"affected":"3 open source packages ship an affected version, including absinthe. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-43967 in the wild and no public exploit code.","fix":"Upgrade absinthe to 1.10.2 or later.","what":"CVE-2026-43967 is a high-severity denial of service vulnerability in absinthe-graphql absinthe, published on 8 May 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-2026-43967 and fix it if it is affected.\n\nWhat it is: CVE-2026-43967 is a high-severity denial of service vulnerability in absinthe-graphql absinthe, published on 8 May 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-2026-43967 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- absinthe (Hex): affected from 1.2.0; fixed in 1.10.2\n- absinthe (Hex): affected from 1.2.0; fixed in 1.10.2\n- absinthe (Hex): affected from 1.2.0; fixed in 1.10.2\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-2026-43967/ (Markdown: https://insights.sbomify.com/CVE-2026-43967/index.md)","id":"CVE-2026-43967","markdown":"https://insights.sbomify.com/CVE-2026-43967/index.md","name":"CVE-2026-43967","record":{"aliases":["EEF-CVE-2026-43967","GHSA-9mhv-8h52-q7q2"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Elixir GraphQL library","requires_auth":"none","summary":"An attacker can cause denial of service in applications using the Absinthe GraphQL library by submitting queries with many fragments, triggering quadratic complexity in validation.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"EEF","cpe":[{"product":"absinthe","vendor":"absinthe-graphql"}],"cvss":{"score":8.7,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-407","name":"Inefficient Algorithmic Complexity"}],"description":"Inefficient Algorithmic Complexity vulnerability in absinthe-graphql absinthe allows unauthenticated denial of service via quadratic fragment-name uniqueness validation.\n\n'Elixir.Absinthe.Phase.Document.Validation.UniqueFragmentNames':run/2 iterates over all fragments and for each one calls duplicate?/2, which evaluates Enum.count(fragments, \u0026(\u00261.name == name)) — a full linear scan of the fragment list. The result is O(N²) comparisons per document, where N is the number of fragment definitions supplied by the caller.\n\nBecause input.fragments is built directly from the GraphQL query body, N is fully attacker-controlled. A minimum-size fragment definition is roughly 16 bytes, so a ~1 MB document carries ~60,000 fragments and forces ~3.6 × 10⁹ comparisons inside this single validation phase. No authentication, schema knowledge, or special configuration is required.\n\nThis issue affects absinthe: from 1.2.0 before 1.10.2.","ecosystems":["Hex"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Quadratic fragment-name uniqueness check causes denial of service in absinthe","id":"CVE-2026-43967","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Hex","product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":3,"n_references":4,"next":{"headline":"CR Injection in SSE Encoder Enables Event Splitting via cow_sse:event/1","id":"CVE-2026-43968"},"packages":[{"ecosystem":"Hex","fixed":["1.10.2"],"introduced":["1.2.0"],"last_affected":[],"package":"absinthe","purl":"pkg:hex/absinthe","source":"EEF-CVE-2026-43967"},{"ecosystem":"Hex","fixed":["1.10.2"],"introduced":["1.2.0"],"last_affected":[],"package":"absinthe","purl":null,"source":"GHSA-9mhv-8h52-q7q2"},{"ecosystem":"Hex","fixed":["1.10.2"],"introduced":["1.2.0"],"last_affected":[],"package":"absinthe","purl":"pkg:hex/absinthe","source":"GHSA-9mhv-8h52-q7q2"}],"prev":{"headline":"HTTP Response Splitting via Non-VCHAR Bytes in cow_http_struct_hd:escape_string/2","id":"CVE-2026-43966"},"products":["absinthe"],"published":"2026-05-08","related":[{"cvss_score":8.2,"headline":"Atom table exhaustion via attacker-controlled GraphQL SDL names in absinthe","id":"CVE-2026-42793","kev_date_added":null,"published":"2026-05-08"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"Erlang Ecosystem Foundation","prefix":"EEF"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"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":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-05-09","vendors":["absinthe-graphql"]},"summary":"An attacker can cause denial of service in applications using the Absinthe GraphQL library by submitting queries with many fragments, triggering quadratic complexity in validation.","url":"https://insights.sbomify.com/CVE-2026-43967/"}