{"answers":{"affected":"2 open source packages ship an affected version, including org.apache.nifi:nifi-framework-cluster. It affects 1 product.","exploited":"There is no known exploitation of CVE-2018-17194 in the wild and no public exploit code.","fix":"Upgrade org.apache.nifi:nifi-framework-cluster to 1.8.0 or later.","what":"CVE-2018-17194 is a high-severity denial of service vulnerability in Apache Nifi, published on 19 Dec 2018. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2018-17194 and fix it if it is affected.\n\nWhat it is: CVE-2018-17194 is a high-severity denial of service vulnerability in Apache Nifi, published on 19 Dec 2018. 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-2018-17194 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- org.apache.nifi:nifi-framework-cluster (Maven): affected from 1.0.0; fixed in 1.8.0\n- org.apache.nifi:nifi-framework-cluster (Maven): affected from 1.0.0; fixed in 1.8.0\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/CVE-2018-17194/ (Markdown: https://insights.sbomify.com/CVE-2018-17194/index.md)","id":"CVE-2018-17194","markdown":"https://insights.sbomify.com/CVE-2018-17194/index.md","name":"CVE-2018-17194","record":{"aliases":["GHSA-43fp-vwwg-qgv6"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Apache NiFi","requires_auth":"none","summary":"Attackers can cause cluster nodes to hang and timeout by sending DELETE requests with non-zero Content-Length headers, requiring an upgrade to fix.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"apache","cpe":[{"product":"nifi","vendor":"apache"}],"cvss":{"score":7.5,"severity":"high","source":"nvd","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.0"},"cwes":[{"id":"CWE-20","name":"Improper Input Validation"}],"description":"When a client request to a cluster node was replicated to other nodes in the cluster for verification, the Content-Length was forwarded. On a DELETE request, the body was ignored, but if the initial request had a Content-Length value other than 0, the receiving nodes would wait for the body and eventually timeout. Mitigation: The fix to check DELETE requests and overwrite non-zero Content-Length header values was applied on the Apache NiFi 1.8.0 release. Users running a prior 1.x release should upgrade to the appropriate release.","ecosystems":["Maven"],"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":"Apache NiFi Improper Input Validation vulnerability","id":"CVE-2018-17194","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":"apache:nifi","products":["apache:nifi"],"type":"denial_of_service","year":"2018"},"n_packages":2,"n_references":1,"next":{"headline":"Cleartext Transmission of Sensitive Information in Apache nifi","id":"CVE-2018-17195"},"packages":[{"ecosystem":"Maven","fixed":["1.8.0"],"introduced":["1.0.0"],"last_affected":[],"package":"org.apache.nifi:nifi-framework-cluster","purl":null,"source":"GHSA-43fp-vwwg-qgv6"},{"ecosystem":"Maven","fixed":["1.8.0"],"introduced":["1.0.0"],"last_affected":[],"package":"org.apache.nifi:nifi-framework-cluster","purl":"pkg:maven/org.apache.nifi/nifi-framework-cluster","source":"GHSA-43fp-vwwg-qgv6"}],"prev":{"headline":"Cross site scripting in org.apache.nifi:nifi","id":"CVE-2018-17193"},"products":["Apache NiFi"],"published":"2018-12-19","related":[{"cvss_score":9.8,"headline":"Improper Restriction of XML External Entity Reference in Apache NiFi","id":"CVE-2018-1309","kev_date_added":null,"published":"2018-05-23"},{"cvss_score":9.8,"headline":"Apache NiFi XSS issue in context path handling","id":"CVE-2017-15697","kev_date_added":null,"published":"2018-01-23"},{"cvss_score":9.8,"headline":"Injection in Apache NiFi","id":"CVE-2017-5636","kev_date_added":null,"published":"2017-10-19"},{"cvss_score":8.8,"headline":"Apache NiFi: Uncontrolled Resource Consumption through Decompression of HTTP Requests","id":"CVE-2026-68981","kev_date_added":null,"published":"2026-08-03"},{"cvss_score":8.8,"headline":"Apache NiFi: Potential Code Injection with Properties Referencing Remote Resources","id":"CVE-2023-36542","kev_date_added":null,"published":"2023-07-29"},{"cvss_score":8.8,"headline":"Apache NiFi: Potential Code Injection with Database Services using H2","id":"CVE-2023-34468","kev_date_added":null,"published":"2023-06-12"},{"cvss_score":8.8,"headline":"Improper Neutralization of Command Elements in Shell User Group Provider","id":"CVE-2022-33140","kev_date_added":null,"published":"2022-06-15"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-05","vendors":["Apache Software Foundation"]},"summary":"Attackers can cause cluster nodes to hang and timeout by sending DELETE requests with non-zero Content-Length headers, requiring an upgrade to fix.","url":"https://insights.sbomify.com/CVE-2018-17194/"}