CVE-2026-66257
Apache Qpid Proton-J: Unbounded symbol value caching can lead to pre-authentication resource exhaustion
CVSS Score
7.5
EPSS Score
0.2%
EPSS Percentile
9th
A pre-authentication attacker could leverage unbounded symbol value caching to cause resource exhaustion 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.
| CWE | CWE-770 |
| Vendor | apache software foundation |
| Product | apache qpid proton-j |
| Published | Aug 5, 2026 |
| Last Updated | Aug 6, 2026 |
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Affected Versions
Apache Software Foundation / Apache Qpid Proton-J
0 ≤ 0.34.1