{"id":"CVE-2026-66274","title":"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…","summary":"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…","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-674","CWE-770"],"vendor":"apache","product":"qpid_proton-j","affected":["qpid_proton-j < 0.35.0"],"patched":["qpid_proton-j 0.35.0"],"published":"2026-08-05","updated":"2026-08-07","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-66274","references":[{"url":"https://lists.apache.org/thread/h7xolzws2by2qhdjf7scbx87foxojb5h","label":"security@apache.org"},{"url":"http://www.openwall.com/lists/oss-security/2026/08/04/10","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-66274.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-66274"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2511337"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-66274"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-66274"},{"url":"https://access.redhat.com/errata/RHSA-2026:66545"},{"url":"https://access.redhat.com/errata/RHSA-2026:66488"},{"url":"https://access.redhat.com/errata/RHSA-2026:63302"},{"url":"https://access.redhat.com/errata/RHSA-2026:69459"}],"tags":["nvd","csaf","vex","red-hat"],"epss":0.00493,"epssPercentile":0.41291,"ingestedAt":"2026-08-08T20:29:49.101Z","slug":"CVE-2026-66274","body":"## Overview\n\nA 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.\n\n## Affected\n\n- `qpid_proton-j < 0.35.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `qpid_proton-j 0.35.0`\n\n## Vendor advisories\n\n- **RHSA-2026:66545** · Red Hat · fixed in: Red Hat AMQ Broker 7.13.6 · released 2026-09-10 · [advisory](https://access.redhat.com/errata/RHSA-2026:66545)\n- **RHSA-2026:66488** · Red Hat · fixed in: Red Hat AMQ Broker 7.14.1 · released 2026-09-10 · [advisory](https://access.redhat.com/errata/RHSA-2026:66488)\n- **RHSA-2026:63302** · Red Hat · fixed in: Red Hat Build of Apache Camel 3.33 for Quarkus 3.33.3.SP1 · released 2026-09-03 · [advisory](https://access.redhat.com/errata/RHSA-2026:63302)\n- **Red Hat VEX** · Important · affected: Red Hat build of Apache Camel 4 for Quarkus 3, Red Hat build of Apache Camel for Spring Boot 4, Red Hat JBoss Enterprise Application Platform Expansion Pack · no fix planned: Red Hat build of Apache Camel 4 for Quarkus 3, Red Hat build of Apache Camel for Spring Boot 4, Red Hat JBoss Enterprise Application Platform Expansion Pack · updated 2026-09-21 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-66274.json)\n- **RHSA-2026:69459** · Red Hat · fixed in: AMQ Clients 2026.Q3 · released 2026-09-21 · [advisory](https://access.redhat.com/errata/RHSA-2026:69459)","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}