CVE-2026-85197
CVE-2026-85197
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.
Vulnerability class: Use-After-Free
CVSS v3 metric
CVSS v3 base score 7.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H.
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-85197?
- CVE-2026-85197 is a high-severity vulnerability, classified under Use After Free. CVSS score: 7.6/10. Published 2026-09-04.
- How severe is CVE-2026-85197?
- High severity. CVSS v3 base score is 7.6 out of 10.