CVE-2026-67554
MEDIUM
CVSS 6.5
Java
Verified Advisory
Denial of service via unbounded disposition range handling in Apache Qpid Proton-Dotnet (CVE-2026-67554)
An authenticated attacker can craft a disposition frame containing large or illegal ranges, causing excessive CPU usage due to naive range handling in Apache Qpid Proton-Dotnet. Successful exploitation leads to denial of service on affected systems.
Affected versions:
- Apache Qpid Proton Dotnet (org.apache.qpid) through 1.0.0
We recommend updating to: 1.1.0.
CVSS ? · our assessment: act_now
Reference: https://seclists.org/oss-sec/2026/q3/425
Details: https://vuln.today/cve/CVE-2026-67554
Verified by vuln.today against published advisories.
Affected versions
- – Apache Qpid Proton Dotnet (org.apache.qpid) through 1.0.0
Fixed in: 1.1.0
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