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Fencer Vulns
low 2.5

CVE-2026-96284 json

Flatpak: flatpak: arbitrary read-access to files in the system-helper context via oci symlink following

published 2026-09-27 42 d ago modified 2026-11-06 2 d ago also EUVD-2026-88046

cvss
2.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.1%
EPSS 0.1% chance of exploitation in 30 days, percentile 1%
public exploits
0
none known

Summary

A malicious user can get read-access to files in the flatpak-system-helper context if a system OCI repository is configured, because the OCI code paths in the system helper follow symlinks when importing OCI images that are under the user's control.

Patch / fix

  • flatpak Debian 12 1.14.10-1~deb12u2
  • flatpak Debian 13 1.16.6-1~deb13u1
  • flatpak Debian 14 1.16.4-1

debian advisories DEBIAN-CVE-2026-96284

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-96284 updated cvss 2.5

flatpak: flatpak: Arbitrary read-access to files in the system-helper context via OCI symlink following

  • Red Hat Enterprise Linux 7 flatpak, flatpak-libs, flatpak-builder, flatpak 1.16.0-5.el10_0.2 Red Hat Enterprise Linux 8 flatpak, flatpak-libs, flatpak-selinux, flatpak-session-helper, flatpak 1.16.0-5.el10_0.2 Red Hat Enterprise Linux 9 flatpak, flatpak-libs, flatpak-selinux, flatpak-session-helper, flatpak 1.16.0-5.el10_0.2 Red Hat Enterprise Linux 10 flatpak 1.16.0-5.el10_0.2
    affected: workaround, no fix available “Remove all OCI system remotes.”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
40 d ago

Exploit prediction

0.12% chance of exploitation in the next 30 days, higher than 1% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 2.5 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N

Affected products

  • Red Hat Red Hat Enterprise Linux 10
  • Red Hat Red Hat Enterprise Linux 7
  • Red Hat Red Hat Enterprise Linux 8
  • Red Hat Red Hat Enterprise Linux 9

Classification

Weakness
  • CWE-59 Improper Link Resolution Before File Access

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.