CVE-2026-88092

Public on 2026-10-13

Modified on 2026-10-20

Description

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

Severity

Critical

See what this means

CVSS v3 Base Score

9.4

See breakdown

Affected Packages

Platform	Package	Release Date	Advisory	Status
Amazon Linux 2023	dotnet10.0	2026-10-22	ALAS2023-2026-3249	Fixed
Amazon Linux 2027 Preview	dotnet10.0	2026-10-21	ALAS2027-2026-223	Fixed
Amazon Linux 2023	dotnet6.0			No Fix Planned
Amazon Linux 2023	dotnet8.0	2026-10-22	ALAS2023-2026-3250	Fixed
Amazon Linux 2023	dotnet9.0	2026-10-22	ALAS2023-2026-3248	Fixed

CVSS Scores

	Score Type	Score	Vector
Amazon Linux	CVSSv3	9.4	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L

References

FAQs regarding Amazon Linux ALAS/CVE Severity Red Hat: CVE-2026-88092 Mitre: CVE-2026-88092