CVE-2026-66274

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 Software

Weaknesses

• CWE-674: CWE-674 Uncontrolled Recursion

ADP Enrichment

CVE Program Container

Additional References

• http://www.openwall.com/lists/oss-security/2026/08/04/10

References

• https://lists.apache.org/thread/h7xolzws2by2qhdjf7scbx87foxojb5h

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