{"answers":{"affected":"4 open source packages ship an affected version, including io.undertow:undertow-core. It affects 3 products.","exploited":"There is no known exploitation of CVE-2017-2666 in the wild and no public exploit code.","fix":"Upgrade io.undertow:undertow-core to a fixed version for your release line: 1.3.31 or 1.4.17.","what":"CVE-2017-2666 is a medium-severity cross-site scripting vulnerability in Debian Debian Linux, published on 27 Jul 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-2017-2666 and fix it if it is affected.\n\nWhat it is: CVE-2017-2666 is a medium-severity cross-site scripting vulnerability in Debian Debian Linux, published on 27 Jul 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-2017-2666 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- io.undertow:undertow-core (Maven): affected all versions; fixed in 1.3.31\n- io.undertow:undertow-core (Maven): affected all versions; fixed in 1.3.31\n- io.undertow:undertow-core (Maven): affected from 1.4.0; fixed in 1.4.17\n- io.undertow:undertow-core (Maven): affected from 1.4.0; fixed in 1.4.17\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-2017-2666/ (Markdown: https://insights.sbomify.com/CVE-2017-2666/index.md)","id":"CVE-2017-2666","markdown":"https://insights.sbomify.com/CVE-2017-2666/index.md","name":"CVE-2017-2666","record":{"aliases":["DEBIAN-CVE-2017-2666","GHSA-mcfm-h73v-635m","UBUNTU-CVE-2017-2666"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["data_read","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Undertow web server","requires_auth":"none","summary":"Attackers can inject data into HTTP responses via invalid characters, enabling XSS, cache poisoning, or sensitive information disclosure.","user_interaction":"not_required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[{"product":"debian_linux","vendor":"debian"},{"product":"jboss_enterprise_application_platform","vendor":"redhat"},{"product":"undertow","vendor":"redhat"}],"cvss":{"score":6.5,"severity":"medium","source":"cna","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","version":"3.0"},"cwes":[{"id":"CWE-444","name":"Inconsistent Interpretation of HTTP Requests"}],"description":"It was discovered in Undertow that the code that parsed the HTTP request line permitted invalid characters. This could be exploited, in conjunction with a proxy that also permitted the invalid characters but with a different interpretation, to inject data into the HTTP response. By manipulating the HTTP response the attacker could poison a web-cache, perform an XSS attack, or obtain sensitive information from requests other than their own.","ecosystems":["Maven"],"exploits":{"exploitdb":0,"first_seen":"2018-11-19","github_poc":1,"max_poc_stars":0,"metasploit":0,"nuclei":0,"refs":[{"date":"2018-11-19T10:33:25Z","kind":"github_poc","ref":"https://github.com/tafamace/CVE-2017-2666","stars":0,"title":null}],"tier":"poc_unverified"},"has_fix":true,"headline":"Undertow-core vulnerable to HTTP Request Smuggling","id":"CVE-2017-2666","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":"debian:debian_linux","products":["debian:debian_linux","redhat:jboss_enterprise_application_platform"],"type":"xss","year":"2017"},"n_packages":4,"n_references":11,"next":{"headline":"hammer_cli_foreman Improper Certificate Validation vulnerability","id":"CVE-2017-2667"},"packages":[{"ecosystem":"Maven","fixed":["1.3.31"],"introduced":["0"],"last_affected":[],"package":"io.undertow:undertow-core","purl":null,"source":"GHSA-mcfm-h73v-635m"},{"ecosystem":"Maven","fixed":["1.3.31"],"introduced":["0"],"last_affected":[],"package":"io.undertow:undertow-core","purl":"pkg:maven/io.undertow/undertow-core","source":"GHSA-mcfm-h73v-635m"},{"ecosystem":"Maven","fixed":["1.4.17"],"introduced":["1.4.0"],"last_affected":[],"package":"io.undertow:undertow-core","purl":null,"source":"GHSA-mcfm-h73v-635m"},{"ecosystem":"Maven","fixed":["1.4.17"],"introduced":["1.4.0"],"last_affected":[],"package":"io.undertow:undertow-core","purl":"pkg:maven/io.undertow/undertow-core","source":"GHSA-mcfm-h73v-635m"}],"prev":{"headline":"Hardcoded credentials in rhscon-core","id":"CVE-2017-2665"},"products":["undertow"],"published":"2018-07-27","related":[{"cvss_score":10,"headline":"ProFTPD Improper Access Control","id":"CVE-2015-3306","kev_date_added":"2026-10-08","published":"2015-05-18"},{"cvss_score":9.9,"headline":"RoundCube Webmail Deserialization of Untrusted Data","id":"CVE-2025-49113","kev_date_added":"2026-02-20","published":"2025-06-02"},{"cvss_score":9.8,"headline":"GNU InetUtils Argument Injection","id":"CVE-2026-24061","kev_date_added":"2026-01-26","published":"2026-01-21"},{"cvss_score":9.8,"headline":"Linux Kernel Improper Check for Unusual or Exceptional Conditions","id":"CVE-2025-39682","kev_date_added":"2026-09-18","published":"2025-09-05"},{"cvss_score":9.8,"headline":"Mozilla Firefox Use-After-Free","id":"CVE-2024-9680","kev_date_added":"2024-10-15","published":"2024-10-09"},{"cvss_score":9.8,"headline":"RARLAB UnRAR Directory Traversal","id":"CVE-2022-30333","kev_date_added":"2022-08-09","published":"2022-05-09"},{"cvss_score":9.8,"headline":"Roundcube Webmail SQL Injection","id":"CVE-2021-44026","kev_date_added":"2023-06-22","published":"2021-11-19"}],"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)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-05","vendors":["[UNKNOWN]"]},"summary":"Attackers can inject data into HTTP responses via invalid characters, enabling XSS, cache poisoning, or sensitive information disclosure.","url":"https://insights.sbomify.com/CVE-2017-2666/"}