CVE-2026-66275

Description

An authenticated attacker could exceed the session flow control incoming window 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

• https://lists.apache.org/thread/jds59nxrgcxtlx7xl0kvl5hqt07thxzt
• http://www.openwall.com/lists/oss-security/2026/08/04/11