CVE-2026-96280

flatpak-devel: flatpak: flatpak: Buffer overflow in OCI delta stream path names on 32-bit systems

CVE-2026-96280 is fixed in 5 products on 1 platform, first by DEBIAN-CVE-2026-96280, released September 23, 2026. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
8.8
Important
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0061
49th percentile

flatpak: flatpak: Buffer overflow in OCI delta stream path names on 32-bit systems

Where it's fixed

ProductFixed inFixReleased
Linux
flatpak · Debian 13.5 (trixie) 1.16.6-1~deb13u2 DEBIAN-CVE-2026-96280 Sep 23, 2026
flatpak · Debian 14 1.18.1-1 DEBIAN-CVE-2026-96280 Sep 23, 2026
flatpak · RHEL 10 1.16.0-5.el10_0.6 RHSA-2026:92221 Oct 13, 2026
flatpak · RHEL 8 0:1.12.9-7.el8_10 RHSA-2026:80687 Oct 13, 2026
flatpak · RHEL 9 0:1.12.9-4.el9_8.4 RHSA-2026:80497 Oct 12, 2026
flatpak · almalinux 10 1.16.0-9.el10_2.4 ALSA-2026:80498 Nov 7, 2026
flatpak · almalinux 8 1.12.9-7.el8_10 ALSA-2026:80687 Nov 7, 2026
flatpak · almalinux 9 1.12.9-4.el9_8.4 ALSA-2026:80497 Nov 7, 2026
flatpak · ol 10 0:1.16.0-9.el10_2.4 ELSA-2026-80498 Nov 7, 2026
flatpak · ol 8 0:1.12.9-7.el8_10 ELSA-2026-80687 Nov 7, 2026
flatpak · ol 9 0:1.12.9-4.el9_8.4 ELSA-2026-80497 Nov 7, 2026
flatpak · rocky 10 0:1.16.0-9.el10_2.4 RLSA-2026:80498 Nov 7, 2026
flatpak · rocky 8 0:1.12.9-7.el8_10 RLSA-2026:80687 Nov 7, 2026
flatpak · rocky 9 0:1.12.9-4.el9_8.4 RLSA-2026:80497 Nov 7, 2026
flatpak · sles 15.6 1.16.6-150600.3.12.1 SUSE-SU-2026:4944-1 Nov 7, 2026
flatpak · sles 15.7 1.16.6-150600.3.12.1 SUSE-SU-2026:4944-1 Nov 7, 2026
flatpak-devel · RHEL 8 0:1.12.9-7.el8_10 RHSA-2026:80687 Oct 13, 2026
flatpak-devel · RHEL 9 0:1.12.9-4.el9_8.4 RHSA-2026:80497 Oct 12, 2026
flatpak-devel · almalinux 10 1.16.0-9.el10_2.4 ALSA-2026:80498 Nov 7, 2026
flatpak-devel · almalinux 8 1.12.9-7.el8_10 ALSA-2026:80687 Nov 7, 2026
flatpak-devel · almalinux 9 1.12.9-4.el9_8.4 ALSA-2026:80497 Nov 7, 2026
flatpak-devel · ol 10 0:1.16.0-9.el10_2.4 ELSA-2026-80498 Nov 7, 2026
flatpak-devel · ol 8 0:1.12.9-7.el8_10 ELSA-2026-80687 Nov 7, 2026
flatpak-devel · ol 9 0:1.12.9-4.el9_8.4 ELSA-2026-80497 Nov 7, 2026
flatpak-libs · RHEL 8 0:1.12.9-7.el8_10 RHSA-2026:80687 Oct 13, 2026
flatpak-libs · RHEL 9 0:1.12.9-4.el9_8.4 RHSA-2026:80497 Oct 12, 2026
flatpak-libs · almalinux 10 1.16.0-9.el10_2.4 ALSA-2026:80498 Nov 7, 2026
flatpak-libs · almalinux 8 1.12.9-7.el8_10 ALSA-2026:80687 Nov 7, 2026
flatpak-libs · almalinux 9 1.12.9-4.el9_8.4 ALSA-2026:80497 Nov 7, 2026
flatpak-libs · ol 10 0:1.16.0-9.el10_2.4 ELSA-2026-80498 Nov 7, 2026
flatpak-libs · ol 8 0:1.12.9-7.el8_10 ELSA-2026-80687 Nov 7, 2026
flatpak-libs · ol 9 0:1.12.9-4.el9_8.4 ELSA-2026-80497 Nov 7, 2026
flatpak-selinux · RHEL 8 0:1.12.9-7.el8_10 RHSA-2026:80687 Oct 13, 2026
flatpak-selinux · RHEL 9 0:1.12.9-4.el9_8.4 RHSA-2026:80497 Oct 12, 2026
flatpak-selinux · almalinux 10 1.16.0-9.el10_2.4 ALSA-2026:80498 Nov 7, 2026
flatpak-selinux · almalinux 8 1.12.9-7.el8_10 ALSA-2026:80687 Nov 7, 2026
flatpak-selinux · almalinux 9 1.12.9-4.el9_8.4 ALSA-2026:80497 Nov 7, 2026
flatpak-selinux · ol 10 0:1.16.0-9.el10_2.4 ELSA-2026-80498 Nov 7, 2026
flatpak-selinux · ol 8 0:1.12.9-7.el8_10 ELSA-2026-80687 Nov 7, 2026
flatpak-selinux · ol 9 0:1.12.9-4.el9_8.4 ELSA-2026-80497 Nov 7, 2026
flatpak-session-helper · RHEL 8 0:1.12.9-7.el8_10 RHSA-2026:80687 Oct 13, 2026
flatpak-session-helper · RHEL 9 0:1.12.9-4.el9_8.4 RHSA-2026:80497 Oct 12, 2026
flatpak-session-helper · almalinux 10 1.16.0-9.el10_2.4 ALSA-2026:80498 Nov 7, 2026
flatpak-session-helper · almalinux 8 1.12.9-7.el8_10 ALSA-2026:80687 Nov 7, 2026
flatpak-session-helper · almalinux 9 1.12.9-4.el9_8.4 ALSA-2026:80497 Nov 7, 2026
flatpak-session-helper · ol 10 0:1.16.0-9.el10_2.4 ELSA-2026-80498 Nov 7, 2026
flatpak-session-helper · ol 8 0:1.12.9-7.el8_10 ELSA-2026-80687 Nov 7, 2026
flatpak-session-helper · ol 9 0:1.12.9-4.el9_8.4 ELSA-2026-80497 Nov 7, 2026

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