{"id":"CVE-2026-66274","published":"2026-08-05T07:16:37.590","lastModified":"2026-08-07T20:31:38.060","description":"A pre-authentication attacker could leverage type nesting to cause a StackOverflowError potentially leading to denial of service.\n\nThis issue affects Apache Qpid Proton-J: through 0.34.1.\n\nUsers are recommended to upgrade to version 0.35.0, which fixes the issue.","cvssScore":7.5,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cwes":["CWE-674"],"vendors":["apache"],"products":["qpid proton-j"],"references":[{"url":"https://lists.apache.org/thread/h7xolzws2by2qhdjf7scbx87foxojb5h","tags":["Vendor Advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2026/08/04/10","tags":["Third Party Advisory"]}],"exploitRefs":[],"hasPoc":false,"ai":{"summary":"The flaw allows a pre-authentication attacker to cause a StackOverflowError through type nesting, potentially leading to denial of service.","exploitability":"Exploitation requires specific conditions and is moderately difficult; attackers must be able to manipulate type nesting in the application.","blast_radius":"If exploited, this could result in denial of service for affected services, impacting availability but not data integrity or confidentiality.","remediation":"Upgrade to Apache Qpid Proton-J version 0.35.0 immediately to address the issue.","tags":["dos","type-nesting","denial-of-service"],"model":"qwen2.5:7b-instruct","analyzedAt":"2026-08-11T06:57:50.927Z"}}