RLSA-2026:21756

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Source
https://errata.rockylinux.org/RLSA-2026:21756
Import Source
https://storage.googleapis.com/resf-osv-data/RLSA-2026:21756.json
JSON Data
https://api.test.osv.dev/v1/vulns/RLSA-2026:21756
Upstream
Published
2026-05-29T06:00:50.714518Z
Modified
2026-05-29T06:30:05.359041396Z
Severity
  • 9.0 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H CVSS Calculator
Summary
Important: flatpak security update
Details

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.

References
Credits
    • Rocky Enterprise Software Foundation
    • Red Hat

Affected packages

Rocky Linux:8 / flatpak

Package

Name
flatpak
Purl
pkg:rpm/rocky-linux/flatpak?distro=rocky-linux-8&epoch=0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0:1.12.9-4.el8_10
Database specific 
{
    "yum_repository": "AppStream"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:21756.json"