Vulnerability in Red Hat Enterprise Linux 10
CVE-2026-97029
Flatpak's process ID namespace separation does not prevent a sandboxed app's kill(0, signal) or killpg(0, signal) calls from reaching processes outside the sandbox that share the same process group. A malicious or compromised Flatpak app can use this to cause denial of service by terminating processes outside its sandbox, such as the desktop shell.
Published .
CVSS v3 metric
CVSS v3 base score 5.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-97029?
- CVE-2026-97029 is a medium-severity vulnerability in Red Hat Enterprise Linux 10, classified under CWE-653. CVSS score: 5.7/10. Published 2026-09-29.
- How severe is CVE-2026-97029?
- Medium severity. CVSS v3 base score is 5.7 out of 10.