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VulnerabilityPublished Updated

CVE-2026-97029: Red Hat Enterprise Linux 10 · Improper Isolation or Compartmentalization

Affects Red Hat Enterprise Linux 10Source CVE Database V5

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Not known to be exploited · CVSS 5.7 Medium.

Data as of 13 Nov 2026, 01:45 UTC

CVSS 3.1 base score
5.7Medium
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (redhat)CVSS 3.15.7
EPSS
0.2% chance of exploitation in 30 days – higher than 15% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 29 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 13 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
Red Hat Enterprise Linux 10flatpakAffected–Fixed in–
Red Hat Enterprise Linux 7flatpakAffected–Fixed in–
Red Hat Enterprise Linux 8flatpakAffected–Fixed in–
Red Hat Enterprise Linux 9flatpakAffected–Fixed in–

AI-suggested

Red Hat advises running Flatpak apps in a new session (e.g., using 'setsid flatpak run ...') or a new process group (e.g., using setpgid(0, 0) in the parent process). Avoid running untrusted Flatpak applications.

Description

CVE-2026-97029 is a vulnerability in Flatpak's process ID namespace separation on Red Hat Enterprise Linux 10. It allows a sandboxed Flatpak application to send kill signals to processes outside its sandbox if they share the same process group. This can lead to denial of service by terminating critical processes such as the desktop shell, disrupting the user's session. The vulnerability requires the user to run a malicious or compromised Flatpak app. There is no confidentiality or integrity impact, but availability impact is high due to potential session termination.

References

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