CVE-2026-41604Network attack vector

Remote service crash via unchecked Swift range

Published Apr 28, 2026 · Updated Aug 26, 2026

Out-of-bounds reads in Apache Thrift before 0.23.0 allow remote attackers to crash Swift RPC services via malformed collection data. Swift TProtocol.skip() iterates map, set, and list counts as ranges without first rejecting negative sizes, so a crafted size produces an invalid Range and terminates the process. The input must reach a Swift protocol decoder and be skipped as an unknown collection field; the demonstrated consequence is a service crash.

CVSS severity8.2
High
EPSS probability0.92%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds reads in Apache Thrift before 0.23.0 allow remote attackers to crash Swift RPC services via malformed collection data. Swift TProtocol.skip() iterates map, set, and list counts as ranges without first rejecting negative sizes, so a crafted size produces an invalid Range and terminates the process. The input must reach a Swift protocol decoder and be skipped as an unknown collection field; the demonstrated consequence is a service crash.

The record

CVE
CVE-2026-41604
Published
Apr 28, 2026
Updated
Aug 26, 2026
Vendor
The Apache Software Foundation
Product
Apache Thrift
Classifications
CWE-125, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 28, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 26, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <0.23.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The Apache Software Foundation · Apache Thriftversion=0 <0.23.0
389 Directory Server · Red Hat Enterprise Linux AIAffected versions are unavailable in this record.
389 Directory Server · Red Hat Advanced Cluster Management for KubernetesAffected versions are unavailable in this record.
389 Directory Server · Multicluster Global HubAffected versions are unavailable in this record.
389 Directory Server · Red Hat OpenShift distributed tracing 3.9.3Affected versions are unavailable in this record.
389 Directory Server · Red Hat OpenShift GitOpsAffected versions are unavailable in this record.
389 Directory Server · Red Hat OpenShift Container Platform 4Affected versions are unavailable in this record.
389 Directory Server · Red Hat AI Inference ServerAffected versions are unavailable in this record.

Published CVSS scores

8.2CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
8.2redhat-SADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-125Out-of-bounds Read
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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