CVE-2026-67591
published 2026-08-05CVE-2026-67591: An authenticated attacker could exceed the session flow control incoming window potentially leading to denial of service. This issue affects Apache Qpid…
PriorityP433medium6.5CVSS 3.1
AVNACLPRLUINSUCNINAH
EPSS
0.42%
35.6th percentile
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.
Affected
2 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| apache | qpid_protonj2 | < 1.2.0 | 1.2.0 |
| apache_software_foundation | apache_qpid_protonj2 | <= 1.1.0 | — |
CVSS provenance
nvdv3.16.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
vendor_redhat6.5MEDIUM
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GHSA
An authenticated attacker could exceed the session flow control incoming window potentially leading to denial of service.
ghsa_unreviewed·2026-08-05
CVE-2026-67591 CWE-770 An authenticated attacker could exceed the session flow control incoming window potentially leading to denial of service.
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.
Red Hat
Apache Qpid ProtonJ2: Apache Qpid ProtonJ2: Denial of Service via exceeding session flow control window
vendor_redhat·2026-08-05·CVSS 6.5
CVE-2026-67591 [MEDIUM] CWE-770 Apache Qpid ProtonJ2: Apache Qpid ProtonJ2: Denial of Service via exceeding session flow control window
Apache Qpid ProtonJ2: Apache Qpid ProtonJ2: Denial of Service via exceeding session flow control window
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.
A flaw was found in Apache Qpid ProtonJ2. An authenticated attacker can exploit this vulnerability by exceeding the session flow control incoming window. This can lead to a denial of service (DoS), making the system unavailable to legitimate users.
Statement: Red Hat ships Apache Qpid ProtonJ2 components (protonj2-parent, protonj2-test-driver) in AMQ Broker 7. The affected components are set to AFFECTED/DEFER as the CVSS score (6.5) is b
No detection rules found.
No public exploits indexed.
2026-08-05
Published