VULNERABILITY INTELLIGENCE
CVE-2026-66274
CVSS score7.5 HIGH
EPSS probability0.77%
CISA KEVNot currently listed
Published2026-08-05
Last modified2026-10-24
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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.
Weakness classification
- security@apache.org: CWE-674
Primary references
- security@apache.org — Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory