CVE-2026-66257: CWE-770 Allocation of Resources Without Limits or Throttling in Apache Software Foundation Apache Qpid Proton-J
A pre-authentication attacker could leverage unbounded symbol value caching to cause resource exhaustion 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.
AI Analysis
Technical Summary
This vulnerability in Apache Qpid Proton-J (<=0.34.1) involves allocation of resources without limits or throttling (CWE-770). An attacker can exploit unbounded caching of symbol values before authentication to exhaust system resources, causing a denial of service condition. The vendor recommends upgrading to version 0.35.0 to remediate the issue.
Potential Impact
The impact is denial of service due to resource exhaustion caused by unbounded caching of symbol values. There is no impact on confidentiality or integrity. The CVSS score is 7.5 (high), reflecting network attack vector, low complexity, no privileges required, no user interaction, and impact limited to availability.
Mitigation Recommendations
Users should upgrade Apache Qpid Proton-J to version 0.35.0, which addresses this vulnerability. No other mitigation or temporary workaround is indicated. Patch status is confirmed by the vendor's recommendation to upgrade.
CVE-2026-66257: CWE-770 Allocation of Resources Without Limits or Throttling in Apache Software Foundation Apache Qpid Proton-J
Description
A pre-authentication attacker could leverage unbounded symbol value caching to cause resource exhaustion 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.
CVSS v3.1
Score 7.5high
Affected software
Apache Software Foundation
Apache Qpid Proton-J
pkg:maven/Apache Software Foundation/org.apache.qpid:proton-jRun 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 in Apache Qpid Proton-J (<=0.34.1) involves allocation of resources without limits or throttling (CWE-770). An attacker can exploit unbounded caching of symbol values before authentication to exhaust system resources, causing a denial of service condition. The vendor recommends upgrading to version 0.35.0 to remediate the issue.
Potential Impact
The impact is denial of service due to resource exhaustion caused by unbounded caching of symbol values. There is no impact on confidentiality or integrity. The CVSS score is 7.5 (high), reflecting network attack vector, low complexity, no privileges required, no user interaction, and impact limited to availability.
Mitigation Recommendations
Users should upgrade Apache Qpid Proton-J to version 0.35.0, which addresses this vulnerability. No other mitigation or temporary workaround is indicated. Patch status is confirmed by the vendor's recommendation to upgrade.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apache
- Date Reserved
- 2026-07-24T10:40:01.653Z
- State
- PUBLISHED
Threat ID: 6a72cd1bbf8831d5394f40ac
Added to database: 08/05/2026, 05:41:47 UTC
Last enriched: 08/12/2026, 15:01:36 UTC
Last updated: 09/18/2026, 02:28:30 UTC
Views: 58
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