CVE-2026-66274

CVE-2026-66274: Apache Qpid Proton-J: Unbounded type nesting can lead to pre-authentication stackoverflow

Vendor Apache Software Foundation

Product Apache Qpid Proton-J

Weakness CWE-674

Published August 5, 2026

Last update August 6, 2026

View on NVD All CVEs

CVSS base score

—

What the vulnerability does

01Description

A pre-authentication attacker could leverage type nesting to cause a StackOverflowError potentially leading to denial of service. This issue affects Apache Qpid Proton-J: through 0.34.1. Users are recommended to upgrade to version 0.35.0, which fixes the issue.

Key dates

02Disclosure timeline

August 5, 2026 CVE published

August 6, 2026 Record updated

External resources

03References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2026-66274 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/674.html AskarLabs — CWE-674 write-up Uncontrolled Recursion