GHSA-p2gc-fm5w-94jj

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

Source: GitHub Advisory Database (reviewed) High CVE-2026-66274

Packages

Ecosystem	Package	Affected	Fixed in
Maven	org.apache.qpid:proton-j	< 0.35.0	0.35.0

Details

As written in the advisory (Markdown source, shown as plain text).

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.

References

External links from the advisory. They lead to third-party sites.

https://nvd.nist.gov/vuln/detail/CVE-2026-66274 advisory
https://github.com/apache/qpid-proton-j/commit/92047419cc87bab6220e7adeb354958d8109618e web
https://github.com/apache/qpid-proton-j package
https://github.com/apache/qpid-proton-j/releases/tag/0.35.0 web
https://lists.apache.org/thread/h7xolzws2by2qhdjf7scbx87foxojb5h web
http://www.openwall.com/lists/oss-security/2026/08/04/10 web