BIT-tomcat-2026-101356

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    BIT-tomcat-2026-101356

    Published: 29 Oct 2026Last Modified: 29 Oct 2026

    Summary: Apache Tomcat: HTTP/2 request/response mix-up after error during async processing

    Details: Incorrect object recycling and re-use vulnerability in Apache Tomcat affecting HTTP/2 processing of asynchronous servlets can trigger request and/or response mix-up between users. This issue affects Apache Tomcat: from 11.0.22 through 11.0.26, from 10.1.55 through 10.1.60, from 9.0.118 through 9.0.122. Users are recommended to upgrade to version 11.0.27, 10.1.61 or 9.0.123, which fixes the issue.

    References: http://www.openwall.com/lists/oss-security/2026/10/20/27, https://lists.apache.org/thread.html/d1xjt7bbjqw7y7n5mcb4fm815hpfgc27, https://nvd.nist.gov/vuln/detail/CVE-2026-101356

    Affected packages

    Package

    Name: tomcat

    Purl: pkg:bitnami/tomcat

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 9.0.118
    Fixed -9.0.123

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    BIT-tomcat-2026-101356 | CVE-DB