CVE-2026-67554

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

05/08/2026

Last modified:

07/08/2026

Description

An authenticated attacker can craft a disposition frame with large or illegal ranges causing excessive CPU usage due to naive range handling, leading to denial of service.<br /> <br /> This issue affects Apache Qpid Proton-Dotnet: through 1.0.0.<br /> <br /> Users are recommended to upgrade to version 1.1.0, which fixes the issue.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 6.50 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High