Detections
Analytics

Alpine: multiple aspnetcore10-runtime packages, multiple dotnet-host packages: security update to 10.0.3-r0

high Tenable Self-Hosted Container Security Plugin ID 437914

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - Improper handling of missing special element in .NET allows an unauthorized attacker to perform spoofing
 over a network. (CVE-2026-21218)

See Also

https://security.alpinelinux.org/vuln/CVE-2026-21218

Plugin Details

Severity: High

ID: 437914

Version: Revision 1.5

Type: Local

Published: 2/21/2026

Updated: 7/2/2026

Supported Sensors: Agentless Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.73

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2026-21218

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: High

Base Score: 8.7

Threat Score: 6.6

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 2/10/2026

Reference Information

CVE: CVE-2026-21218