{"id":"CVE-2021-20220","state":"PUBLISHED","title":"A flaw was found in Undertow. A regression in the fix for CVE-2020-10687 was found. HTTP request smuggling related to CVE-2017-2666 is possible against HTTP/1.x and HTTP/2 due to p","description":"A flaw was found in Undertow. A regression in the fix for CVE-2020-10687 was found. HTTP request smuggling related to CVE-2017-2666 is possible against HTTP/1.x and HTTP/2 due to permitting invalid characters in an HTTP request. This flaw allows an attacker to poison a web-cache, perform an XSS attack, or obtain sensitive information from request other than their own. The highest threat from this vulnerability is to data confidentiality and integrity.","publishedAt":"2021-02-23T17:21:44.000Z","updatedAt":"2024-08-03T17:30:07.487Z","severity":null,"assigner":"redhat","products":["n/a undertow"],"affected":[{"vendor":"n/a","product":"undertow","versions":[{"version":"Undertow 2.2.0.Final, Undertow 2.1.6.Final, Undertow 2.0.34.Final","status":"affected"}]}],"references":["https://bugzilla.redhat.com/show_bug.cgi?id=1923133","https://security.netapp.com/advisory/ntap-20220210-0013/"],"weaknesses":["CWE-444"],"ingestedAt":"2026-10-29T19:47:55.610Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/20xxx/CVE-2021-20220.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-20220","state":"PUBLISHED","datePublished":"2021-02-23T17:21:44.000Z","dateUpdated":"2024-08-03T17:30:07.487Z","assignerShortName":"redhat","assignerOrgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","dateReserved":"2020-12-17T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"A flaw was found in Undertow. A regression in the fix for CVE-2020-10687 was found. HTTP request smuggling related to CVE-2017-2666 is possible against HTTP/1.x and HTTP/2 due to permitting invalid characters in an HTTP request. This flaw allows an attacker to poison a web-cache, perform an XSS attack, or obtain sensitive information from request other than their own. The highest threat from this vulnerability is to data confidentiality and integrity."}],"affected":[{"vendor":"n/a","product":"undertow","versions":[{"version":"Undertow 2.2.0.Final, Undertow 2.1.6.Final, Undertow 2.0.34.Final","status":"affected"}]}],"references":[{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1923133","tags":["x_refsource_MISC"]},{"url":"https://security.netapp.com/advisory/ntap-20220210-0013/","tags":["x_refsource_CONFIRM"]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-444","description":"CWE-444","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"redhat","dateUpdated":"2022-02-10T09:06:21.000Z","orgId":"53f830b8-0a3f-465b-8143-3b8a9948e749"},"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"secalert@redhat.com","ID":"CVE-2021-20220","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"undertow","version":{"version_data":[{"version_value":"Undertow 2.2.0.Final, Undertow 2.1.6.Final, Undertow 2.0.34.Final"}]}}]},"vendor_name":"n/a"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"A flaw was found in Undertow. A regression in the fix for CVE-2020-10687 was found. HTTP request smuggling related to CVE-2017-2666 is possible against HTTP/1.x and HTTP/2 due to permitting invalid characters in an HTTP request. This flaw allows an attacker to poison a web-cache, perform an XSS attack, or obtain sensitive information from request other than their own. The highest threat from this vulnerability is to data confidentiality and integrity."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-444"}]}]},"references":{"reference_data":[{"name":"https://bugzilla.redhat.com/show_bug.cgi?id=1923133","refsource":"MISC","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1923133"},{"name":"https://security.netapp.com/advisory/ntap-20220210-0013/","refsource":"CONFIRM","url":"https://security.netapp.com/advisory/ntap-20220210-0013/"}]}}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1923133","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://security.netapp.com/advisory/ntap-20220210-0013/","tags":["x_refsource_CONFIRM","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-03T17:30:07.487Z"}}]}}}