OESA-2026-4569

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Source
https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2026-4569
Import Source
https://repo.openeuler.org/security/data/osv/OESA-2026-4569.json
JSON Data
https://api.osv.dev/v1/vulns/OESA-2026-4569
Upstream
Published
2026-10-29T09:03:03Z
Modified
2026-10-29T09:15:29Z
Severity
  • 7.4 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
flatpak security update
Details

flatpak is a system for building, distributing and running sandboxed desktop applications on Linux. See https://wiki.gnome.org/Projects/SandboxedApps for more information.

Security Fix(es):

In Flatpak before 1.18.1, the revokefs writer, used by the flatpak-system-helper to receive repository data from unprivileged callers, validated file paths by rejecting literal .. components but did not prevent symlink traversal. A malicious local user in an active local session could obtain two revokefs sessions via the system helper, create a symlink in one session pointing into the other session's directory, and retain a file descriptor through that symlink. This allowed the attacker to modify files belonging to a different revokefs session after they had been validated and imported by the system helper. In particular, an attacker could use this to tamper with ostree commit objects in the system repository after they passed signature verification, enabling root-controlled file writes to attacker-chosen paths and local root privilege escalation.(CVE-2026-96808)

Database specific 
{
    "severity":  "High"
}
References

Affected packages

openEuler:22.03-LTS-SP4 / flatpak

Package

Name
flatpak
Purl
pkg:rpm/openEuler/flatpak&distro=openEuler-22.03-LTS-SP4

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.10.2-16.oe2203sp4

Ecosystem specific 

{
    "aarch64":  [
        "flatpak-1.10.2-16.oe2203sp4.aarch64.rpm",
        "flatpak-debuginfo-1.10.2-16.oe2203sp4.aarch64.rpm",
        "flatpak-debugsource-1.10.2-16.oe2203sp4.aarch64.rpm",
        "flatpak-devel-1.10.2-16.oe2203sp4.aarch64.rpm"
    ],
    "noarch":  [
        "flatpak-help-1.10.2-16.oe2203sp4.noarch.rpm"
    ],
    "src":  [
        "flatpak-1.10.2-16.oe2203sp4.src.rpm"
    ],
    "x86_64":  [
        "flatpak-1.10.2-16.oe2203sp4.x86_64.rpm",
        "flatpak-debuginfo-1.10.2-16.oe2203sp4.x86_64.rpm",
        "flatpak-debugsource-1.10.2-16.oe2203sp4.x86_64.rpm",
        "flatpak-devel-1.10.2-16.oe2203sp4.x86_64.rpm"
    ]
}

Database specific

source 
"https://repo.openeuler.org/security/data/osv/OESA-2026-4569.json"