CVE-2026-85494: Apache Thrift: Framed transport and binary protocol size a read buffer from a peer-declared length with no effective maximum (multi-language)

[Jens Geyer <je...@apache.org>]

Severity: important 
    CVSS 4.0: 8.7 (high) CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Affected versions:

- Apache Thrift (thrift) before 0.25.0
- Apache Thrift (thrift) before 0.25.0
- Apache Thrift (erlang bindings) before 0.25.0
- Apache Thrift (lua bindings) before 0.25.0
- Apache Thrift (dart bindings) before 0.25.0
- Apache Thrift (javaME bindings) before 0.25.0
- Apache Thrift (D bindings) before 0.25.0
- Apache Thrift (Thrift) before 0.25.0
- Apache Thrift (apache/thrift) before 0.25.0

Description:

Improper handling of length parameter inconsistency, Uncaught exception, Inefficient Algorithmic Complexity, Memory allocation with excessive size value, Initialization of a resource with an insecure default vulnerability in Apache Thrift Python, Ruby, Erlang, Lua, Dart, JavaME, Perl, PHP and D language bindings.



This issue affects Apache Thrift: before 0.25.0.



Users are recommended to upgrade to version 0.25.0, which fixes the issue.

Credit:

Ho1aAs <xx...@gmail.com> for py, rb, erl, lua, dart, javame, d bindings (finder)
Perl/PHP bindings were found by the Apache Thrift project's own cross-language sweep (finder)
The ASF -- found using Claude agents to study the security of open-source projects, validated and reported by Apache Thrift. (finder)

References:

https://thrift.apache.org/
https://www.cve.org/CVERecord?id=CVE-2026-85494