CVE-2026-85197

high

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.

References

https://gitlab.gnome.org/GNOME/libsoup/-/work_items/552

https://bugzilla.redhat.com/show_bug.cgi?id=2528425

https://access.redhat.com/security/cve/CVE-2026-85197

Details

Source: Mitre, NVD

Published: 2026-09-04

Updated: 2026-09-04

Risk Information

CVSS v2

Base Score: 9

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

Severity: High

CVSS v3

Base Score: 7.6

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H

Severity: High

EPSS

EPSS: 0.00184