CVE-2026-97029 (GCVE-0-2026-97029)
Vulnerability from cvelistv5 – Published: 2026-09-29 03:43 – Updated: 2026-09-29 15:52
VLAI
EPSS
VEX
Title
Flatpak: flatpak: sandboxed app can signal unsandboxed processes in the same process group
Summary
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.
Severity
5.7 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 15:52 UTC
CWE
- CWE-653 - Improper Isolation or Compartmentalization
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2026-97029 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2542698 | issue-trackingx_refsource_REDHAT |
| https://github.com/flatpak/flatpak/security/advis… |
Impacted products
4 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10
|
||
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7
|
||
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8
|
||
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9
|
Date Public
2026-09-28 13:30
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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