CVE-2026-43871: Apache Thrift Python, Go, PHP and Java bindings have an Infinite Loop

Published Jul 24, 2026
·
Updated

Apache Thrift Python, Go, PHP and Java bindings have an Infinite Loop

Other sources

Apache Thrift, Apache Thrift, Apache Thrift, Apache Thrift: TCompactProtocol varint byte-count limit

— Microsoft

Loop with Unreachable Exit Condition ('Infinite Loop') vulnerability in Apache Thrift Python, Go, PHP and Java bindings.This issue affects Apache Thrift: before 0.24.0.

Users are recommended to upgrade to version 0.24.0, which fixes the issue.

— MITRE

Affected Software

12 affected componentsFixes available
Apache Thrift<0.24.0
Microsoft azl3 thrift 0.15.0-6<0.24.0-1
0.24.0-1
Microsoft azl3 vitess 19.0.4-12<19.0.4-12
19.0.4-12
Microsoft azl3 telegraf 1.31.0-28<1.31.0-26
1.31.0-26
Microsoft azl3 influxdb 2.7.5-19<2.7.5-20
2.7.5-20
Apache Thrift<0.24.0
composer/apache/thrift<0.24.0
0.24.0
maven/org.apache.thrift:libthrift<0.24.0
0.24.0
composer/apache/thrift<0.24.0
0.24.0
go/github.com/apache/thrift<0.24.0
0.24.0
pip/thrift<0.24.0
0.24.0
IBM API Connect V12 OnPrem<=v12.1.0.0 - v12.1.1.2

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 0.24.0-1
  2. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 19.0.4-12
  3. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 2.7.5-20
  4. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 1.31.0-26
  5. Upgrade

    Upgrade composer/apache/thrift to a version that resolves this vulnerability.

    Fixed in 0.24.0
  6. Upgrade

    Upgrade maven/org.apache.thrift:libthrift to a version that resolves this vulnerability.

    Fixed in 0.24.0
  7. Upgrade

    Upgrade go/github.com/apache/thrift to a version that resolves this vulnerability.

    Fixed in 0.24.0
  8. Upgrade

    Upgrade pip/thrift to a version that resolves this vulnerability.

    Fixed in 0.24.0
  9. Upgrade

    Upgrade Apache Thrift Python, Go, PHP and Java bindings to a version that resolves this vulnerability.

    Fixed in 0.24.0

Event History

Jul 27, 2026
CVE Published
via MITRE·10:56 AM
Data Sourced
via MITRE·10:56 AM
DescriptionWeakness
Data Sourced
via NVD·12:16 PM
DescriptionSeverityWeaknessAffected Software
Advisory Published
via GitHub·12:31 PM
Data Sourced
via GitHub·12:31 PM
DescriptionSeverityWeaknessAffected Software
Data Sourced
via Packagist·12:31 PM
DescriptionSeverityAffected Software
Aug 7, 2026
Data Sourced
via Microsoft·08:21 AM
DescriptionSeverityWeaknessAffected Software
Oct 8, 2026
Data Sourced
via IBM·12:00 AM
DescriptionAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Frequently Asked Questions

1

What is the severity of CVE-2026-43871?

CVE-2026-43871 has a severity rating of high with a CVSS score of 8.7.

2

How do I fix CVE-2026-43871?

To mitigate CVE-2026-43871, users should upgrade to Apache Thrift version 0.24.0 or later.

3

What is the issue related to CVE-2026-43871?

CVE-2026-43871 is an 'Infinite Loop' vulnerability that affects the TCompactProtocol of Apache Thrift in multiple programming languages.

4

Which versions of Apache Thrift are affected by CVE-2026-43871?

CVE-2026-43871 affects Apache Thrift versions prior to 0.24.0.

5

What languages are impacted by CVE-2026-43871?

CVE-2026-43871 impacts Apache Thrift bindings in Python, Go, PHP, and Java.

Company

Resources

Contact

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