CVE-2026-67554

medium

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. This issue affects Apache Qpid Proton-Dotnet: through 1.0.0. Users are recommended to upgrade to version 1.1.0, which fixes the issue.

References

https://lists.apache.org/thread/5ndlowz29464ytj98gz9z9ljhwnmb2hm

http://www.openwall.com/lists/oss-security/2026/08/04/25

Details

Source: Mitre, NVD

Published: 2026-08-05

Updated: 2026-08-05

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:N/AC:L/Au:S/C:N/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 6.5

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

Severity: Medium

EPSS

EPSS: 0.00159