CVE-2026-94634 PUBLISHED

Apache Thrift: Python `TJSONProtocol` has a string length limit that is off by default

Assigner: apache
Reserved: 21.09.2026 Published: 02.10.2026 Updated: 02.10.2026

Allocation of resources without limits or throttling, Initialization of a resource with an insecure default vulnerability in Apache Thrift Python bindings.

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:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CVSS Score: 8.2

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	Present	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

Ho1aAs <xxy010605@gmail.com> finder

References

Problem Types

CWE-770 Allocation of resources without limits or throttling CWE
CWE-1188 Initialization of a resource with an insecure default CWE