CVE-2026-85197

Public on 2026-09-04
Modified on 2026-09-05
Description
A flaw was found in libsoup. A malicious HTTP/2 server or a Man-in-the-Middle (MITM) attacker can exploit a heap use-after-free vulnerability in the HTTP/2 client implementation. This occurs when a GNOME application uploads a file using HTTP/2, and the server sends a GOAWAY frame while the file body is being read asynchronously. This can lead to memory corruption, potentially resulting in information disclosure or arbitrary code execution.
Severity
Important severity
Important
See what this means
CVSS v3 Base Score
7.6
See breakdown

Affected Packages

Platform Package Release Date Advisory Status
Amazon Linux 2 - Core libsoup Not Affected
Amazon Linux 2023 libsoup Not Affected
Amazon Linux 2023 libsoup3 Pending Fix
Amazon Linux 2027 Preview libsoup3 Pending Fix

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 7.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H