Detections
Analytics
EulerOS 2.0 SP13 : haproxy (EulerOS-SA-2026-2968)
medium Nessus Plugin ID 332964
Synopsis
The remote EulerOS host is missing a security update.Description
According to the versions of the haproxy packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :An issue was discovered in HAProxy before 3.3.6. The HTTP/3 parser does not check that the received body length matches a previously announced content-length when the stream is closed via a frame with an empty payload. This can cause desynchronization issues with the backend server and could be used for request smuggling. The earliest affected version is 2.6.(CVE-2026-33555)
Tenable has extracted the preceding description block directly from the EulerOS haproxy security advisory.
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.
Solution
Update the affected haproxy packages.See Also
Plugin Details
Severity: Medium
ID: 332964
File Name: EulerOS_SA-2026-2968.nasl
Version: 1.1
Type: Local
Family: Huawei Local Security Checks
Published: 8/6/2026
Updated: 8/6/2026
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Low
Score: 1.2
Percentile: 0.01
CVSS v2
Risk Factor: Medium
Base Score: 5
Temporal Score: 3.9
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N
CVSS Score Source: CVE-2026-33555
CVSS v3
Risk Factor: Medium
Base Score: 5.8
Temporal Score: 5.2
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
Vulnerability Information
CPE: cpe:/o:huawei:euleros:2.0, p-cpe:/a:huawei:euleros:haproxy-help, p-cpe:/a:huawei:euleros:haproxy
Required KB Items: Host/local_checks_enabled, Host/cpu, Host/EulerOS/release, Host/EulerOS/rpm-list, Host/EulerOS/sp
Excluded KB Items: Host/EulerOS/uvp_version
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 8/6/2026
Vulnerability Publication Date: 4/13/2026
Reference Information
CVE: CVE-2026-33555
IAVB: 2026-B-0103