3.1

CVE-2026-96282: flatpak Link Following

CVSS: 3.1v3.1LowAwaiting analysis
AliasesUBUNTU-CVE-2026-96282DEBIAN-CVE-2026-96282
Published 27-09-2026Last modified 28-09-2026
Open JSON

Vulnerability summary

CVE-2026-96282 is a low (CVSS 3.1) Link Following vulnerability in flatpak. EPSS estimates a 0.33% chance of exploitation in the next 30 days, higher than 24.6% of scored vulnerabilities.

Overall risk
12/100
0100
Low · default modelHow is this calculated?
CVSS score
3.1/10
010
Low · v3.1 (CVE.org)
EPSS score
0.33%
0%100%
Low · Change unavailable
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1 · Related 1
SUSE-SU-2026:4610-1

Timeline

  1. 27-09-2026
    PublishedVulnerability first disclosed.
  2. 28-09-2026
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.33%

Chance of exploitation in the next 30 days

Percentile

25%

Versus all other CVEs

30-day change

Change unavailable

Change unavailable

28-09-202621-10-2026
EPSS score
0.33%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • flatpakAll versions (No fix recorded) | < 1.16.6-1~deb13u2 | < 1.18.1-1
Ubuntu1 product
  • flatpakAll versions (No fix recorded)

2 vendors · 2 products

References

6 links