# CVE-2026-41602: Apache Thrift integer overflow in Go TFramedTransport

Source: https://junglewise.ai/threats/cve-2026-41602-apache-thrift-integer-overflow-in-go-tframedtransport  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-04-28. Updated: 2026-06-30  
License: CC BY 4.0 with a link back

CVE-2026-41602 · Severity: high · CVSS 7.5 · Published 2026-04-28

Apache Thrift is a widely used framework for scalable cross-language services development. A vulnerability in its Go language implementation could allow a remote attacker to cause a denial-of-service condition. This would result in the affected service becoming unresponsive, potentially disrupting business operations and data processing tasks that rely on Thrift-based communication.

Technologies: [Apache Thrift](https://junglewise.ai/threats/technologies/thrift), [github.com/apache/thrift (Go)](https://junglewise.ai/threats/technologies/github-com-apache-thrift), [Red Hat AI Inference Server](https://junglewise.ai/threats/technologies/ai-inference-server), [Red Hat Multicluster Global Hub](https://junglewise.ai/threats/technologies/multicluster-global-hub). Vendors: [Apache](https://junglewise.ai/threats/vendors/apache), [Go](https://junglewise.ai/threats/vendors/go), [Red Hat](https://junglewise.ai/threats/vendors/red-hat).

## Quick answers

**Is CVE-2026-41602 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-41602 being exploited in the wild.

**How severe is CVE-2026-41602?** High severity, with a CVSS score of 7.5, published 28 April 2026.

**Which products and versions are affected?** github.com/apache/thrift (Go) SEMVER:introduced=0,fixed=0.23.0; Red Hat AI Inference Server 3; Red Hat Multicluster Global Hub 1.3.4, 1.4.5, 1.5.4, 1.6.2, 1.7.1.

**Is there a fix for CVE-2026-41602?** Yes. github.com/apache/thrift (Go): upgrade to 0.23.0 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-41602 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-41602?** Check whether you run Apache Thrift, github.com/apache/thrift (Go), Red Hat AI Inference Server or one of the others listed at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- github.com/apache/thrift (Go): upgrade to 0.23.0 or later

  ```sh
  go get github.com/apache/thrift@v0.23.0
  ```


## Technical details

An integer overflow or wraparound vulnerability exists in the TFramedTransport component of the Apache Thrift Go language implementation. The flaw occurs when processing specially crafted framed transport data, where a uint32 overflow can be triggered. A remote, unauthenticated attacker can exploit this over a network to cause unexpected behavior or resource exhaustion, leading to a denial of service (DoS). The issue is addressed in Apache Thrift version 0.23.0. Red Hat has also issued several advisories for downstream products like OpenShift and Ceph Storage that incorporate the vulnerable library.

## Affected products

- Apache Thrift before 0.23.0
- Red Hat Multicluster Global Hub 1.3.4, 1.4.5, 1.5.4, 1.6.2, 1.7.1
- Red Hat Advanced Cluster Management for Kubernetes 2.15, 2.16
- Red Hat OpenShift distributed tracing 3.9.3
- Red Hat AI Inference Server 3
- Red Hat Ceph Storage 5, 6, 9

## Identifiers

- CVE-2026-41602
- GHSA-wf45-q9ch-q8gh

## Timeline

- 2026-04-28: disclosed: Initial disclosure by Apache Software Foundation
- 2026-04-28: advisory
- 2026-04-28: patched: Fixed in Apache Thrift 0.23.0

## References

- [https://lists.apache.org/thread/lb4j0zyd5f3g36cos0wql925przpnwql](https://lists.apache.org/thread/lb4j0zyd5f3g36cos0wql925przpnwql)
- [http://www.openwall.com/lists/oss-security/2026/04/28/6](http://www.openwall.com/lists/oss-security/2026/04/28/6)
- [https://access.redhat.com/errata/RHSA-2026:14162](https://access.redhat.com/errata/RHSA-2026:14162)
- [https://access.redhat.com/errata/RHSA-2026:14885](https://access.redhat.com/errata/RHSA-2026:14885)
- [https://access.redhat.com/errata/RHSA-2026:21769](https://access.redhat.com/errata/RHSA-2026:21769)
- [https://access.redhat.com/errata/RHSA-2026:22347](https://access.redhat.com/errata/RHSA-2026:22347)
- [https://access.redhat.com/errata/RHSA-2026:22423](https://access.redhat.com/errata/RHSA-2026:22423)

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