CVE-2026-67591

EUVD-2026-53089
An authenticated attacker could exceed the session flow control incoming window potentially leading to denial of service.

This issue affects Apache Qpid ProtonJ2: through 1.1.0.

Users are recommended to upgrade to version 1.2.0, which fixes the issue.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
UNKNOWN
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Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 6%
Debian logo
Debian Releases
Debian Product
Codename
qpid-proton
bookworm
vulnerable
bullseye
vulnerable
forky
vulnerable
sid
vulnerable
trixie
vulnerable
Common Weakness Enumeration
References
https://lists.apache.org/thread/rwmggh2bkm6qotxpdfcplht3jgw5n036
http://www.openwall.com/lists/oss-security/2026/08/04/30