High severity7.5NVD Advisory· Published Aug 5, 2026· Updated Oct 23, 2026
CVE-2026-66274
CVE-2026-66274
Description
A pre-authentication attacker could leverage type nesting to cause a StackOverflowError potentially 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 Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2<=0.34.1+ 1 more
- (no CPE)range: <=0.34.1
- cpe:2.3:a:apache:qpid_proton-j:*:*:*:*:*:*:*:*range: <0.35.0
Patches
Vulnerability mechanics
References
2- www.openwall.com/lists/oss-security/2026/08/04/10nvdThird Party Advisory
- lists.apache.org/thread/h7xolzws2by2qhdjf7scbx87foxojb5hnvdVendor Advisory
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