{"cve":"CVE-2018-8037","nvd":{"published":"2018-08-02T14:29:00.363","modified":"2026-06-17T02:04:08.897","status":"Modified","description":"If an async request was completed by the application at the same time as the container triggered the async timeout, a race condition existed that could result in a user seeing a response intended for a different user. An additional issue was present in the NIO and NIO2 connectors that did not correctly track the closure of the connection when an async request was completed by the application and timed out by the container at the same time. This could also result in a user seeing a response intended for another user. Versions Affected: Apache Tomcat 9.0.0.M9 to 9.0.9 and 8.5.5 to 8.5.31.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","score":5.9},"cwes":["CWE-362"],"references":["http://mail-archives.us.apache.org/mod_mbox/www-announce/201807.mbox/%3C20180722090623.GA92700%40minotaur.apache.org%3E","http://mail-archives.us.apache.org/mod_mbox/www-announce/201808.mbox/%3C0c616b4d-4e81-e7f8-b81d-1bb4c575aa33%40apache.org%3E","http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html","http://www.securityfocus.com/bid/104894","http://www.securitytracker.com/id/1041376"],"products":["apache:tomcat","debian:debian_linux"],"source":"nvd","synced_at":"2026-10-19T20:52:03.425131697+00:00"},"epss":{"cve":"CVE-2018-8037","score":0.11156,"percentile":0.95947,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-6v52-mj5r-7j2m","url":"https://osv.dev/vulnerability/GHSA-6v52-mj5r-7j2m","summary":"Apache Tomcat Race Condition vulnerability","modified":"2024-03-11T05:32:05.311159Z","packages":[{"ecosystem":"Maven","name":"org.apache.tomcat.embed:tomcat-embed-core","purl":"pkg:maven/org.apache.tomcat.embed/tomcat-embed-core","ranges":[">=9.0.0.M9 <9.0.10"],"fixed":["9.0.10"]},{"ecosystem":"Maven","name":"org.apache.tomcat.embed:tomcat-embed-core","purl":"pkg:maven/org.apache.tomcat.embed/tomcat-embed-core","ranges":[">=8.5.5 <8.5.32"],"fixed":["8.5.32"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}