CVE-2026-86535 PUBLISHED

Apache Thrift: A JSON member name can stall the Node server's event loop indefinitely

Assigner: apache
Reserved: 07.09.2026 Published: 02.10.2026 Updated: 02.10.2026

Loop with unreachable exit condition ('infinite loop'), Improperly controlled modification of object prototype attributes ('prototype pollution') vulnerability in Apache Thrift NodeJS bindings with TJSONProtocol.

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

The ASF -- found using Claude agents to study the security of open-source projects, validated and reported by Apache Thrift. finder

References

Problem Types

CWE-835 Loop with unreachable exit condition ('infinite loop') CWE
CWE-1321 Improperly controlled modification of object prototype attributes ('prototype pollution') CWE