CVE-2026-67591: CWE-770 Allocation of Resources Without Limits or Throttling in Apache Software Foundation Apache Qpid ProtonJ2
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.
AI Analysis
Technical Summary
This vulnerability (CWE-770) in Apache Qpid ProtonJ2 allows an authenticated attacker to exceed the session flow control incoming window, which is a form of resource allocation without limits or throttling. This can lead to denial of service conditions by exhausting resources related to session flow control. The affected versions are all versions up to and including 1.1.0. The vendor has addressed this issue in version 1.2.0.
Potential Impact
The impact is denial of service (DoS) caused by resource exhaustion when an attacker exceeds the session flow control incoming window. There is no impact on confidentiality or integrity. The CVSS score is 6.5 (medium), reflecting the DoS impact with network attack vector, low attack complexity, and requiring privileges.
Mitigation Recommendations
Users should upgrade Apache Qpid ProtonJ2 to version 1.2.0 or later, where this issue is fixed. No other mitigations or temporary workarounds are indicated. Patch status is confirmed by the vendor's recommendation to upgrade.
CVE-2026-67591: CWE-770 Allocation of Resources Without Limits or Throttling in Apache Software Foundation Apache Qpid ProtonJ2
Description
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.
CVSS v3.1
Score 6.5medium
Affected software
Apache Software Foundation
Apache Qpid ProtonJ2
pkg:maven/Apache Software Foundation/org.apache.qpid:protonj2Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-770) in Apache Qpid ProtonJ2 allows an authenticated attacker to exceed the session flow control incoming window, which is a form of resource allocation without limits or throttling. This can lead to denial of service conditions by exhausting resources related to session flow control. The affected versions are all versions up to and including 1.1.0. The vendor has addressed this issue in version 1.2.0.
Potential Impact
The impact is denial of service (DoS) caused by resource exhaustion when an attacker exceeds the session flow control incoming window. There is no impact on confidentiality or integrity. The CVSS score is 6.5 (medium), reflecting the DoS impact with network attack vector, low attack complexity, and requiring privileges.
Mitigation Recommendations
Users should upgrade Apache Qpid ProtonJ2 to version 1.2.0 or later, where this issue is fixed. No other mitigations or temporary workarounds are indicated. Patch status is confirmed by the vendor's recommendation to upgrade.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apache
- Date Reserved
- 2026-07-29T20:26:55.665Z
- State
- PUBLISHED
Threat ID: 6a72d7b2bf8831d5395e8463
Added to database: 08/05/2026, 06:26:58 UTC
Last enriched: 08/12/2026, 14:59:17 UTC
Last updated: 09/18/2026, 22:01:37 UTC
Views: 43
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