SCA: security update for Microsoft.AspNetCore.App.Runtime.linux-x64, Microsoft.AspNetCore.App.Runtime.osx-arm64, Microsoft.AspNetCore.App.Runtime.win-x64, Microsoft.AspNetCore.SignalR.Protocols.MessagePack (GHSA-f8h2-vmm9-qhj6)

high Tenable Cloud Security Plugin ID 443259

Description

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

- Uncontrolled resource consumption in ASP.NET Core allows an unauthorized attacker to deny service over a
network. (CVE-2026-45591)

Solution

Update the Microsoft.AspNetCore.App.Runtime.linux-x64 library and its related packages to version 10.0.9 or later.

See Also

https://github.com/advisories/GHSA-f8h2-vmm9-qhj6

Plugin Details

Severity: High

ID: 443259

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 6/16/2026

Updated: 6/16/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.73

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2026-45591

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:N/A:H

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 6/15/2026

Vulnerability Publication Date: 6/9/2026

Reference Information

CVE: CVE-2026-45591