CVE-2026-66276
Last modified
CVE-2026-66276 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. An authenticated attacker can craft a disposition frame with large or illegal ranges causing excessive CPU usage due to naive range handling, 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.. EPSS estimates a 0.17% chance of exploitation in the next 30 days.
Description
An authenticated attacker can craft a disposition frame with large or illegal ranges causing excessive CPU usage due to naive range handling, 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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Apache | Qpid Proton-J | < 0.35.0 |
References
- https://lists.apache.org/thread/14nj0lpsqpnd3q0hw0t0tw44qvdo1jc2Mailing List, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2026/08/04/12Mailing List, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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