Flatpak: flatpak: world-readable oci authentication token in system-helper cache path

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-97025
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-28 21:17:19 UTC
Updated2026-09-28 21:17:19 UTC
DescriptionFlatpak writes the OCI repository authentication token with world-readable permissions (0644) in the system-helper's cache directory, allowing other local users on a multi-user system to read the token and impersonate the authenticated user against the OCI repository. Only OCI-based sources (e.g. as used by Fedora) are affected; libostree-based sources such as Flathub are not.

Risk And Classification

Primary CVSS: v3.1 3.2 LOW from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N

Problem Types: CWE-378 | CWE-378 Creation of Temporary File With Insecure Permissions

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary3.2LOWCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N
3.1CNACVSS3.2LOWCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
None
Availability
None

CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Red Hat Red Hat Enterprise Linux 10 Not specified Not specified
CNA Red Hat Red Hat Enterprise Linux 7 Not specified Not specified
CNA Red Hat Red Hat Enterprise Linux 8 Not specified Not specified
CNA Red Hat Red Hat Enterprise Linux 9 Not specified Not specified

References

ReferenceSourceLinkTags
github.com/flatpak/flatpak/security/advisories/GHSA-7rvf-rqr3-43j4 [email protected] github.com
bugzilla.redhat.com/show_bug.cgi [email protected] bugzilla.redhat.com
access.redhat.com/security/cve/CVE-2026-97025 [email protected] access.redhat.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Red Hat would like to thank AISLE for reporting this issue. (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-09-28T13:29:46.000ZReported to Red Hat.
CNA2026-09-28T13:29:46.000ZMade public.

Workarounds

CNA: Use libostree repositories such as Flathub, or unauthenticated (public) OCI repositories.

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