{"id":"CVE-2017-7656","url":"https://www.cyber-defence.io/tools/cve/CVE-2017-7656","generatedAt":"2026-10-28T19:47:19.430Z","title":"This could be used to poison the cache if the server allowed the origin client to generate arbitrary content in the response.","description":"In Eclipse Jetty, versions 9.2.x and older, 9.3.x (all configurations), and 9.4.x (non-default configuration with RFC2616 compliance enabled), HTTP/0.9 is handled poorly. An HTTP/1 style request line (i.e. method space URI space version) that declares a version of HTTP/0.9 was accepted and treated as a 0.9 request. If deployed behind an intermediary that also accepted and passed through the 0.9 version (but did not act on it), then the response sent could be interpreted by the intermediary as HTTP/1 headers. This could be used to poison the cache if the server allowed the origin client to generate arbitrary content in the response.","published":"2018-06-26T15:29:00.000Z","lastModified":"2026-06-17T01:24:54.000Z","status":"Modified","sourceIdentifier":"emo@eclipse.org","cvss":{"version":"3.0","score":7.5,"severity":"HIGH","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"},"cwe":["CWE-444"],"affected":["eclipse/jetty","debian/debian linux"],"epss":{"score":0.0633,"percentile":0.93589,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (6.33%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"http://www.securitytracker.com/id/1041194","tags":["Third Party Advisory","VDB Entry"],"source":"emo@eclipse.org"},{"url":"https://bugs.eclipse.org/bugs/show_bug.cgi?id=535667","tags":["Third Party Advisory"],"source":"emo@eclipse.org"},{"url":"https://lists.apache.org/thread.html/053d9ce4d579b02203db18545fee5e33f35f2932885459b74d1e4272%40%3Cissues.activemq.apache.org%3E","source":"emo@eclipse.org"},{"url":"https://lists.apache.org/thread.html/708d94141126eac03011144a971a6411fcac16d9c248d1d535a39451%40%3Csolr-user.lucene.apache.org%3E","source":"emo@eclipse.org"},{"url":"https://lists.apache.org/thread.html/9317fd092b257a0815434b116a8af8daea6e920b6673f4fd5583d5fe%40%3Ccommits.druid.apache.org%3E","source":"emo@eclipse.org"},{"url":"https://lists.apache.org/thread.html/rbf4565a0b63f9c8b07fab29352a97bbffe76ecafed8b8555c15b83c6%40%3Cissues.maven.apache.org%3E","source":"emo@eclipse.org"},{"url":"https://security.netapp.com/advisory/ntap-20181014-0001/","source":"emo@eclipse.org"},{"url":"https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbst03953en_us","source":"emo@eclipse.org"},{"url":"https://www.debian.org/security/2018/dsa-4278","tags":["Third Party Advisory"],"source":"emo@eclipse.org"},{"url":"https://www.oracle.com//security-alerts/cpujul2021.html","source":"emo@eclipse.org"},{"url":"https://www.oracle.com/security-alerts/cpuoct2020.html","source":"emo@eclipse.org"},{"url":"https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html","source":"emo@eclipse.org"},{"url":"http://www.securitytracker.com/id/1041194","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugs.eclipse.org/bugs/show_bug.cgi?id=535667","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.apache.org/thread.html/053d9ce4d579b02203db18545fee5e33f35f2932885459b74d1e4272%40%3Cissues.activemq.apache.org%3E","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.apache.org/thread.html/708d94141126eac03011144a971a6411fcac16d9c248d1d535a39451%40%3Csolr-user.lucene.apache.org%3E","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.apache.org/thread.html/9317fd092b257a0815434b116a8af8daea6e920b6673f4fd5583d5fe%40%3Ccommits.druid.apache.org%3E","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.apache.org/thread.html/rbf4565a0b63f9c8b07fab29352a97bbffe76ecafed8b8555c15b83c6%40%3Cissues.maven.apache.org%3E","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.netapp.com/advisory/ntap-20181014-0001/","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbst03953en_us","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.debian.org/security/2018/dsa-4278","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.oracle.com//security-alerts/cpujul2021.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.oracle.com/security-alerts/cpuoct2020.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2017-7656","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}