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Fencer Vulns
low 3.3

CVE-2026-96283 json

Flatpak: flatpak: flatpak-system-helper cross-user cancelpull orphans another user's ongoing pull

published 2026-09-27 42 d ago modified 2026-11-06 2 d ago also EUVD-2026-88043

cvss
3.3
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

By calling org.freedesktop.Flatpak.SystemHelper.CancelPull on another user's pull, the pull is not actually cancelled but removed from internal tracking, making it impossible for the owning user to stop it. Ongoing pulls cannot be stopped.

Patch / fix

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

debian advisories DEBIAN-CVE-2026-96283

  • flatpak SLES LTSS Extended Security 12 SP5, SLES 12 SP5-LTSS 1.4.2-3.15.1

suse advisories SUSE-SU-2026:4610-1

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-2026-96283 updated cvss 3.3

flatpak: flatpak: flatpak-system-helper cross-user CancelPull orphans another user's ongoing pull

  • 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 “No known mitigation other than updating.”

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
41 d ago

Exploit prediction

0.11% 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 3.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

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

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.