CVE-2026-93926: Apache Thrift: C++ `THeaderTransport::untransform()` leaks the zlib stream on the error path

Published Oct 2, 2026
·
Updated

Apache Thrift: C++ THeaderTransport::untransform() leaks the zlib stream on the error path

Other sources

Missing release of memory after effective lifetime, Missing release of resource after effective lifetime vulnerability in Apache Thrift THeaderTransport.

This issue affects Apache Thrift: before 0.25.0.

Users are recommended to upgrade to version 0.25.0, which fixes the issue.

— NVD

Affected Software

2 affected componentsFixes available
Apache Thrift<0.25.0
Microsoft azl3 thrift 0.24.0-1<0.25.0-1
0.25.0-1

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 0.25.0-1
  2. Upgrade

    Upgrade Apache Thrift to a version that resolves this vulnerability.

    Fixed in 0.25.0

Event History

Oct 2, 2026
CVE Published
via MITRE·10:13 AM
Data Sourced
via MITRE·10:13 AM
DescriptionWeakness
Data Sourced
via NVD·11:17 AM
DescriptionSeverityWeakness
Oct 3, 2026
Data Sourced
via Microsoft·08:05 AM
DescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

1

Which deployments need to be reviewed?

Deployments using Apache Thrift versions before 0.25.0 should be reviewed, particularly where the C++ THeaderTransport implementation is in use. The provided information does not identify affected configurations beyond that component.

2

What is the recommended remediation?

Upgrade Apache Thrift to version 0.25.0. This version fixes the zlib stream resource-release issue in THeaderTransport::untransform().

3

Is a workaround available if an upgrade cannot be performed immediately?

No workaround or compensating configuration is provided in the available information. The documented remediation is upgrading to 0.25.0.

Contact

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