{"id":"CVE-2026-88041","title":"tomcat: tomcat: Information disclosure via incomplete HTTP trailer cleanup (CVE-2026-88041)","summary":"A flaw was found in Apache Tomcat. Due to an incomplete cleanup vulnerability, HTTP (Hypertext Transfer Protocol) trailer headers from a previous request can persist and leak into a subsequent request processed on the same connection. This…","severity":"low","cwe":"CWE-459","vendor":"Red Hat","product":"Red Hat Hardened Images","affected":["hardened_images"],"patched":["hardened_images"],"published":"2026-10-20","updated":"2026-10-20","sourceUpdated":"2026-10-20T23:32:57+00:00","source":"CSAF","sourceUrl":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-88041.json","references":[{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-88041.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-88041"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2556182"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-88041"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-88041"},{"url":"https://lists.apache.org/thread.html/dnmm9l3byytg3l66nk1jrqfrl7jty7n1"},{"url":"https://access.redhat.com/errata/RHSA-2026:85926"},{"url":"https://access.redhat.com/errata/RHSA-2026:81365"}],"tags":["csaf","vex","red-hat","cve.org"],"ingestedAt":"2026-10-20T14:08:00.571Z","epss":0.0025,"epssPercentile":0.16284,"slug":"CVE-2026-88041","body":"## Overview\n\nA flaw was found in Apache Tomcat. Due to an incomplete cleanup vulnerability, HTTP (Hypertext Transfer Protocol) trailer headers from a previous request can persist and leak into a subsequent request processed on the same connection. This issue may allow a remote user to access sensitive request data belonging to another client, resulting in information disclosure.\n\n## Vendor advisories\n\n- **RHSA-2026:85926** · Red Hat · fixed in: Red Hat Hardened Images · released 2026-10-20 · [advisory](https://access.redhat.com/errata/RHSA-2026:85926)\n- **RHSA-2026:81365** · Red Hat · fixed in: Red Hat Hardened Images · released 2026-10-12 · [advisory](https://access.redhat.com/errata/RHSA-2026:81365)\n\n**tomcat: tomcat: Information disclosure via incomplete HTTP trailer cleanup** — rated Low by Red Hat. Released 2026-10-20.\n\nFixed:\n\n- Red Hat Hardened Images\n\n## Remediation\n\nFor details on how to apply this update, which includes the changes described in this advisory, refer to:\nhttps://images.redhat.com/ https://access.redhat.com/errata/RHSA-2026:85926\nFor details on how to apply this update, which includes the changes described in this advisory, refer to:\nhttps://images.redhat.com/ https://access.redhat.com/errata/RHSA-2026:81365","depth":"sunlit","depthScore":14,"depthScoreParts":{"impact":13.8,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[{"seq":227151,"id":"CVE-2026-88041","ts":1792585169901,"field":"severity","old":"none","new":"low"}]}