VIR Vulnerability Intelligence Relay

CVE-2026-88092

critical EU-CRITICAL
EUVD alias: EUVD-2026-100147
Assigned by CNA: microsoft
Published 2026-10-13 · Modified 2026-10-13
Discuss on Community Propose mitigation
CVSS v3
9.4
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L/E:U/RL:O/RC:C
CVSS v4 NEW
—
not yet in upstream
VIR risk
9.4

Description

Inconsistent interpretation of http requests ('http request/response smuggling') in ASP.NET Core allows an unauthorized attacker to perform tampering over a network.

Predictions

Exploit likelihood
95%
Patch ETA
—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

Propose a mitigation on Community Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Package impact
EcosystemPackageVulnerableFixed
nuget NuGetMicrosoft.AspNetCore.App.Runtime.osx-x64>= 9.0.0, <= 9.0.209.0.21
nuget NuGetMicrosoft.AspNetCore.App.Runtime.osx-arm64>= 9.0.0, <= 9.0.209.0.21
nuget NuGetMicrosoft.AspNetCore.App.Runtime.win-x86>= 11.0.0-preview.1, <= 11.0.0-rc.111.0.0-rc.2
nuget NuGetMicrosoft.AspNetCore.App.Runtime.linux-musl-arm>= 11.0.0-preview.1, <= 11.0.0-rc.111.0.0-rc.2
nuget NuGetMicrosoft.AspNetCore.App.Runtime.win-x86>= 10.0.0, <= 10.0.1210.0.13
nuget NuGetMicrosoft.AspNetCore.App.Runtime.osx-arm64>= 10.0.0, <= 10.0.1210.0.13
nuget NuGetMicrosoft.AspNetCore.App.Runtime.win-x64>= 8.0.0, <= 8.0.318.0.32
nuget NuGetMicrosoft.AspNetCore.App.Runtime.osx-x64>= 8.0.0, <= 8.0.318.0.32
nuget NuGetMicrosoft.AspNetCore.App.Runtime.linux-arm64>= 8.0.0, <= 8.0.318.0.32
nuget NuGetMicrosoft.AspNetCore.App.Runtime.win-x86>= 9.0.0, <= 9.0.209.0.21
nuget NuGetMicrosoft.AspNetCore.App.Runtime.win-x64>= 9.0.0, <= 9.0.209.0.21
nuget NuGetMicrosoft.AspNetCore.App.Runtime.linux-x64>= 11.0.0-preview.1, <= 11.0.0-rc.111.0.0-rc.2
nuget NuGetMicrosoft.AspNetCore.App.Runtime.linux-musl-arm64>= 11.0.0-preview.1, <= 11.0.0-rc.111.0.0-rc.2
nuget NuGetMicrosoft.AspNetCore.App.Runtime.win-x86>= 8.0.0, <= 8.0.318.0.32
nuget NuGetMicrosoft.AspNetCore.App.Runtime.linux-musl-x64>= 9.0.0, <= 9.0.209.0.21
nuget NuGetMicrosoft.AspNetCore.App.Runtime.win-x64>= 11.0.0-preview.1, <= 11.0.0-rc.111.0.0-rc.2
nuget NuGetMicrosoft.AspNetCore.App.Runtime.win-arm64>= 11.0.0-preview.1, <= 11.0.0-rc.111.0.0-rc.2
nuget NuGetMicrosoft.AspNetCore.App.Runtime.win-arm64>= 9.0.0, <= 9.0.209.0.21
nuget NuGetMicrosoft.AspNetCore.App.Runtime.linux-musl-arm64>= 9.0.0, <= 9.0.209.0.21
nuget NuGetMicrosoft.AspNetCore.App.Runtime.linux-musl-arm>= 9.0.0, <= 9.0.209.0.21
nuget NuGetMicrosoft.AspNetCore.App.Runtime.linux-arm64>= 9.0.0, <= 9.0.209.0.21
nuget NuGetMicrosoft.AspNetCore.App.Runtime.osx-x64>= 11.0.0-preview.1, <= 11.0.0-rc.111.0.0-rc.2
nuget NuGetMicrosoft.AspNetCore.App.Runtime.osx-arm64>= 11.0.0-preview.1, <= 11.0.0-rc.111.0.0-rc.2
nuget NuGetMicrosoft.AspNetCore.App.Runtime.linux-musl-x64>= 11.0.0-preview.1, <= 11.0.0-rc.111.0.0-rc.2
nuget NuGetMicrosoft.AspNetCore.App.Runtime.linux-arm64>= 11.0.0-preview.1, <= 11.0.0-rc.111.0.0-rc.2
nuget NuGetMicrosoft.AspNetCore.App.Runtime.linux-arm>= 11.0.0-preview.1, <= 11.0.0-rc.111.0.0-rc.2
nuget NuGetMicrosoft.AspNetCore.App.Runtime.win-arm64>= 8.0.0, <= 8.0.318.0.32
nuget NuGetMicrosoft.AspNetCore.App.Runtime.linux-musl-x64>= 8.0.0, <= 8.0.318.0.32
nuget NuGetMicrosoft.AspNetCore.App.Runtime.linux-musl-arm>= 8.0.0, <= 8.0.318.0.32
nuget NuGetMicrosoft.AspNetCore.App.Runtime.linux-x64>= 9.0.0, <= 9.0.209.0.21
nuget NuGetMicrosoft.AspNetCore.App.Runtime.osx-x64>= 10.0.0, <= 10.0.1210.0.13
nuget NuGetMicrosoft.AspNetCore.App.Runtime.linux-musl-x64>= 10.0.0, <= 10.0.1210.0.13
nuget NuGetMicrosoft.AspNetCore.App.Runtime.linux-musl-arm>= 10.0.0, <= 10.0.1210.0.13
nuget NuGetMicrosoft.AspNetCore.App.Runtime.linux-arm64>= 10.0.0, <= 10.0.1210.0.13
nuget NuGetMicrosoft.AspNetCore.App.Runtime.linux-arm>= 10.0.0, <= 10.0.1210.0.13
nuget NuGetMicrosoft.AspNetCore.App.Runtime.linux-x64>= 8.0.0, <= 8.0.318.0.32
nuget NuGetMicrosoft.AspNetCore.App.Runtime.linux-arm>= 9.0.0, <= 9.0.209.0.21
nuget NuGetMicrosoft.AspNetCore.App.Runtime.win-x64>= 10.0.0, <= 10.0.1210.0.13
nuget NuGetMicrosoft.AspNetCore.App.Runtime.win-arm64>= 10.0.0, <= 10.0.1210.0.13
nuget NuGetMicrosoft.AspNetCore.App.Runtime.linux-x64>= 10.0.0, <= 10.0.1210.0.13
nuget NuGetMicrosoft.AspNetCore.App.Runtime.linux-musl-arm64>= 10.0.0, <= 10.0.1210.0.13
nuget NuGetMicrosoft.AspNetCore.App.Runtime.osx-arm64>= 8.0.0, <= 8.0.318.0.32
nuget NuGetMicrosoft.AspNetCore.App.Runtime.linux-musl-arm64>= 8.0.0, <= 8.0.318.0.32
nuget NuGetMicrosoft.AspNetCore.App.Runtime.linux-arm>= 8.0.0, <= 8.0.318.0.32

References

CWEs

CWE-444

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.