CVE-2026-96282CWE-59

CVE-2026-96282

Low · published September 28, 2026

CVSS v3.1
3.1
EPSS
0%
Percentile
24.7
In the wild
Unconfirmed
What it is

A malicious Flatpak extension can probe the host filesystem to determine what files and directories exist at arbitrary paths, and host directory listings can be disclosed to sandboxed applications using the extension. Additionally, unvalidated extension metadata can cause extension content to be mounted at unintended locations inside the sandbox.

The record
Technical detail
CVSS v3.1
3.1 · LOW
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00329 · 24.7th percentile
Weakness
CWE-59 · Improper Link Resolution Before File Access ('Link Following')
Published
2026-09-28T02:17Z
References (3)
https://access.redhat.com/security/cve/CVE-2026-96282 · [email protected]https://bugzilla.redhat.com/show_bug.cgi?id=2539422 · [email protected]https://github.com/flatpak/flatpak/security/advisories/GHSA-w69g-9x8j-7p8f · [email protected]
EPSS history
Timeline
  • 29 SEP 03:28Z
    EPSS moved — → 0%
    epss
  • 27 SEP 21:53Z
    Flatpak: flatpak: extension metadata path traversal file existence oracle
    cvelistv5