01 Record
CVE-2026-96281
Flatpak: flatpak: unprivileged active user can bypass anti-downgrade checks for system apps/runtimes
MediumPUBLISHEDCNA: redhat
CNA base score6.2 CVSS v3.xCVSS:3.1/AV:P/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
02 Description
Flatpak: flatpak: unprivileged active user can bypass anti-downgrade checks for system apps/runtimes
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 0.17% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Ranks above 6.0% of scored records. A rank, not a probability.
- NVD base score
- 6.2 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:P/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
- NVD analysis status
- Received. NVD last modified this record on 2026-09-27.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-09-27 21:00Z1 DAY AGO
- Last updated
- 2026-09-27 21:16Z1 DAY AGO
- Reserved
- 2026-09-22
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 6.2)
- CNA CVSS vector
- CVSS:3.1/AV:P/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-284Improper Access ControlPillar
- Data version
- 5.2
- Document digest
- f12de9801b57ce0975e8d6d68847debf496c51520e07551dda67dc30c99dc0a8
05 Affected products
VendorProductVersionsPlatforms
06 References
- access.redhat.comhttps://access.redhat.com/security/cve/CVE-2026-96281
- bugzilla.redhat.comRHBZ#2539421https://bugzilla.redhat.com/show_bug.cgi?id=2539421
- github.comhttps://github.com/flatpak/flatpak/security/advisories/GHSA-q4gr-vc25-57m5