CVE-2026-93926 PUBLISHED

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

Assigner: apache
Reserved: 18.09.2026 Published: 02.10.2026 Updated: 02.10.2026

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.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CVSS Score: 8.7

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	None
Attack Complexity	Low	Integrity	None	Integrity	None
Attack Requirements	None	Availability	High	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

Product Status

Vendor	Apache Software Foundation
Product	Apache Thrift
Versions	Default: unaffected affected from 0 to 0.25.0 (excl.)

Credits

glit3h from ZeroVuln Labs finder

References

Problem Types

CWE-401 Missing release of memory after effective lifetime CWE
CWE-772 Missing release of resource after effective lifetime CWE