What’s Vulnerable › Vulnerabilities
CVE-2026-82231: Apache bRPC: Malformed Thrift T_EXCEPTION reply causes process termination in Thrift client
- Severity: high (CVSS 7.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.1% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-10-21 · updated 2026-10-30
- Weakness: CWE-248
Description
A Thrift client in Apache bRPC (version < 1.18.0, built with WITH_THRIFT which is off by default) can be crashed by the server peer it talks to. When the server returns a T_EXCEPTION reply whose exception struct is malformed, the client decodes it without catching what Apache Thrift throws (TProtocolException, TTransportException or std::length_error). The exception unwinds out of the bthread task function and the process calls std::terminate(), terminating the whole process along with every other in-flight RPC. This is the client response path, so the adversary is the server peer, which THREAT_MODEL.md treats as untrusted. It requires a WITH_THRIFT build (off by default). How to Fix: 1. Upgrade bRPC to version 1.18.0, which fixes this issue. 2. Apply this patch: https://github.com/apache/brpc/pull/3500
Affected products
- Apache Software Foundation Apache bRPC: before 1.18.0 — fixed in 1.18.0
How to fix
Upgrade to a fixed version: Apache Software Foundation Apache bRPC 1.18.0. Check the vendor advisory for mitigations.
References
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