HIGHCVSS 7.5EPSS 0.8%

CVE-2026-66274

CVE-2026-66274 updated by NVD

Published: 2026-08-05
Modified: 2026-11-03
EPSS percentile: 56%
Sources: github-advisory, nvd

Summary

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.

Affected packages

Ecosystem	Package	Affected versions	Fixed versions
Maven	org.apache.qpid:proton-j	—	0.35.0

Remediation: Upgrade to 0.35.0 or later.

References

https://nvd.nist.gov/vuln/detail/CVE-2026-66274

Includes data from the GitHub Advisory Database, licensed under CC-BY 4.0.

Includes data from the National Vulnerability Database (NIST). NVD data is in the public domain; this page is not endorsed by NIST.

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EPSS scores provided by the FIRST.org Exploit Prediction Scoring System.