Copyright © 2012 Red Hat, Inc. All rights reserved. Important 2026-10-02T09:07:56 thrift: thrift: Denial of Service via improper length parameter handling in Lua bindings 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CWE-130

Allocation of resources without limits or throttling, Improper handling of length parameter inconsistency vulnerability in Apache Thrift Lua bindings. This issue affects Apache Thrift: before 0.25.0. Users are recommended to upgrade to version 0.25.0, which fixes the issue.

A flaw was found in the Apache Thrift Lua bindings. A remote attacker could exploit this vulnerability by sending requests containing inconsistent length parameters, triggering excessive resource allocation without proper limits. This issue can exhaust available system memory or processing capacity, resulting in a Denial of Service (DoS).

Red Hat rates the impact of this vulnerability as Important because an unauthenticated remote attacker can trigger excessive resource consumption leading to a denial of service without requiring credentials or user interaction. Exposure across Red Hat environments is confined to deployments actively implementing Thrift network services built with the Lua language bindings. Typical installations that do not expose Lua-bound Thrift network interfaces to untrusted traffic remain unaffected by this flaw. Restrict network exposure by limiting access to applications utilizing Apache Thrift Lua bindings to trusted network segments or binding listening services strictly to localhost (127.0.0.1). To restrict network access to the port utilized by the Thrift service using firewalld: 1. Remove public exposure of the service port: # firewall-cmd --permanent --remove-port=<PORT>/tcp 2. Restrict communication to a trusted IP subnet: # firewall-cmd --permanent --zone=trusted --add-source=<TRUSTED_CIDR> 3. Reload firewalld to apply the changes: # firewall-cmd --reload Warning: Reloading the firewall configuration may temporarily interrupt active connections. Blocking this port will prevent any unauthorized or untrusted remote clients from communicating with the service. Additionally, avoid deploying or running services that implement Apache Thrift via its Lua bindings if not strictly required by your workloads. Red Hat Hardened Images 2026-10-01T00:00:00Z RHSA-2026:74369 thrift-main-0.25.0-0.1.hum1 Red Hat Ceph Storage 7 Fix deferred thrift Red Hat Ceph Storage 8 Fix deferred thrift Red Hat Ceph Storage 9 Fix deferred thrift Red Hat Enterprise Linux AI (RHEL AI) 3 Affected thrift https://www.cve.org/CVERecord?id=CVE-2026-94635 https://nvd.nist.gov/vuln/detail/CVE-2026-94635 https://lists.apache.org/thread/33otcgbqd27wf6qq810q56znzbomnhg1 https://lists.apache.org/thread/ow8994gb5g8ssmmbkbl48xqb0tpvqyr3