{"schema_version": "1.6.1", "id": "CVE-2026-67590", "summary": "Unbounded type nesting can lead to pre-authentication stackoverflow", "details": "A pre-authentication attacker could leverage type nesting to cause a StackOverflowError potentially leading to denial of service.\n\nThis issue affects Apache Qpid ProtonJ2: through 1.1.0.\n\nUsers are recommended to upgrade to version 1.2.0, which fixes the issue.", "affected": [{"ranges": [{"type": "SEMVER", "events": [{"introduced": "0"}, {"last_affected": "0"}]}]}], "references": [{"type": "WEB", "url": "https://lists.apache.org/thread/kmov6k7f3moqy01m1s370fl61vgos3ly"}]}