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  4. CVE 2026 82231 apache brpc malformed thrift texception reply
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Back to active CVEs
Unknown severity · Source severity not reportedCVE-2026-82231

Apache bRPC: Malformed Thrift T_EXCEPTION reply causes process termination in Thrift clientCVE-2026-82231

Answer in brief

CVE-2026-82231 records a Unknown severity vulnerability in Apache bRPC: Malformed Thrift T_EXCEPTION reply causes process termination in Thrift client. The current sources do not mark it as known exploited. The current feed maps Apache Software Foundation/apache/brpc (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 21, 2026Updated Oct 21, 2026Source checked Oct 21, 2026First seen by HOL Oct 21, 2026Material review Oct 21, 2026
Upstream Advisory

Key facts

Risk
Unknown severitySource severity not reported
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Apache Software Foundation/apache/brpc (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Apache Software Foundation/apache/brpcgeneric>=0 <1.18.01.18.0

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Apache Software Foundation/apache/brpc.
  2. 2Review the reported fix. Update Apache Software Foundation/apache/brpc to 1.18.0 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Oct 21, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 21, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 21, 2026

Sources and claim methodology

  • Source referencelists.apache.org
Upstream source 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

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Apache bRPC: Unbounded Memory Accumulation in Stream Message ReassemblySame apache software foundation/apache/brpc package
  • Apache bRPC: Uncontrolled Resource Consumption via Excessive Streams in a Single RPC RequestSame apache software foundation/apache/brpc package
  • Apache bRPC: Remote denial of service (crash) via malformed stream feedback framesSame apache software foundation/apache/brpc package
  • Apache bRPC: Stack Exhaustion via Unbounded Recursion in mcpack2pb ParserSame apache software foundation/apache/brpc package
  • Apache bRPC: Reachable Assertion in Socket::OnInputEvent Allows Remote Denial of ServiceSame apache software foundation/apache/brpc package
  • Apache bRPC: Race Condition on the Shared Socket Input Buffer in the RDMA Transport Causes Remote Denial of ServiceSame apache software foundation/apache/brpc package

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
CWE-248
Source
CVE List V5
Source checked
Oct 21, 2026
References
1 linked source
Open source record