RHSA-2026:30901: Important: flatpak security update

Published Jun 29, 2026
·
Updated

Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux.Security Fix(es): flatpak: Flatpak: Arbitrary code execution via crafted symlinks in sandbox-expose options (CVE-2026-34078) flatpak: Flatpak: Arbitrary file deletion on host via improper cache file path validation (CVE-2026-34079) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Affected Software

18 affected componentsFixes available
Red Hat Red Hat Enterprise Linux for x86_64 - Extended Update Support Extension
Red Hat Red Hat Enterprise Linux Server - AUS
redhat/flatpak<1.12.9-2.el8_4
1.12.9-2.el8_4
redhat/flatpak<1.12.9-2.el8_4
1.12.9-2.el8_4
redhat/flatpak-debuginfo<1.12.9-2.el8_4
1.12.9-2.el8_4
redhat/flatpak-debuginfo<1.12.9-2.el8_4
1.12.9-2.el8_4
redhat/flatpak-debugsource<1.12.9-2.el8_4
1.12.9-2.el8_4
redhat/flatpak-debugsource<1.12.9-2.el8_4
1.12.9-2.el8_4
redhat/flatpak-libs<1.12.9-2.el8_4
1.12.9-2.el8_4
redhat/flatpak-libs<1.12.9-2.el8_4
1.12.9-2.el8_4
redhat/flatpak-libs-debuginfo<1.12.9-2.el8_4
1.12.9-2.el8_4
redhat/flatpak-libs-debuginfo<1.12.9-2.el8_4
1.12.9-2.el8_4
redhat/flatpak-selinux<1.12.9-2.el8_4
1.12.9-2.el8_4
redhat/flatpak-session-helper<1.12.9-2.el8_4
1.12.9-2.el8_4
redhat/flatpak-session-helper-debuginfo<1.12.9-2.el8_4
1.12.9-2.el8_4
redhat/flatpak-session-helper-debuginfo<1.12.9-2.el8_4
1.12.9-2.el8_4
redhat/flatpak-tests-debuginfo<1.12.9-2.el8_4
1.12.9-2.el8_4
redhat/flatpak-tests-debuginfo<1.12.9-2.el8_4
1.12.9-2.el8_4

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade redhat/flatpak to a version that resolves this vulnerability.

    Fixed in 1.12.9-2.el8_4
  2. Upgrade

    Upgrade redhat/flatpak-debuginfo to a version that resolves this vulnerability.

    Fixed in 1.12.9-2.el8_4
  3. Upgrade

    Upgrade redhat/flatpak-debugsource to a version that resolves this vulnerability.

    Fixed in 1.12.9-2.el8_4
  4. Upgrade

    Upgrade redhat/flatpak-libs to a version that resolves this vulnerability.

    Fixed in 1.12.9-2.el8_4
  5. Upgrade

    Upgrade redhat/flatpak-libs-debuginfo to a version that resolves this vulnerability.

    Fixed in 1.12.9-2.el8_4
  6. Upgrade

    Upgrade redhat/flatpak-selinux to a version that resolves this vulnerability.

    Fixed in 1.12.9-2.el8_4
  7. Upgrade

    Upgrade redhat/flatpak-session-helper to a version that resolves this vulnerability.

    Fixed in 1.12.9-2.el8_4
  8. Upgrade

    Upgrade redhat/flatpak-session-helper-debuginfo to a version that resolves this vulnerability.

    Fixed in 1.12.9-2.el8_4
  9. Upgrade

    Upgrade redhat/flatpak-tests-debuginfo to a version that resolves this vulnerability.

    Fixed in 1.12.9-2.el8_4
  10. Upgrade

    Upgrade flatpak to a version that resolves this vulnerability.

    Patch CVE-2026-34078
  11. Upgrade

    Upgrade flatpak to a version that resolves this vulnerability.

    Patch CVE-2026-34079

Event History

Jun 29, 2026
Advisory Published
via Red Hat·12:00 AM
Data Sourced
via Red Hat·12:00 AM
RemedyDescriptionAffected Software
Advisory Published
via Red Hat·07:06 AM
Data Sourced
via Red Hat·07:06 AM
Severity
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Frequently Asked Questions

1

What is the severity of RHSA-2026:30901?

The severity of RHSA-2026:30901 is classified as high with a score of 7.

2

What vulnerabilities does RHSA-2026:30901 address?

RHSA-2026:30901 addresses vulnerabilities related to arbitrary code execution and arbitrary file deletion due to improper cache file handling.

3

How do I fix RHSA-2026:30901?

To fix RHSA-2026:30901, you should update your flatpak packages to the latest version provided by the security update.

4

What is the impact of not addressing RHSA-2026:30901?

Not addressing RHSA-2026:30901 can lead to potential arbitrary code execution and unauthorized file deletion on the host system.

5

When was RHSA-2026:30901 published?

RHSA-2026:30901 was published on June 29, 2026.

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