CVE-2026-96283: flatpak Missing Authorization
CVSS: 3.3v3.1LowAwaiting analysis
AliasesUBUNTU-CVE-2026-96283DEBIAN-CVE-2026-96283
Published 27-09-2026Last modified 28-09-2026
Vulnerability summary
CVE-2026-96283 is a low (CVSS 3.3) Missing Authorization vulnerability in flatpak. EPSS estimates a 0.15% chance of exploitation in the next 30 days, higher than 3.7% of scored vulnerabilities.
CVSS score
3.3/10
010
Low · v3.1 (CVE.org)EPSS score
0.15%
0%100%
Low · Change unavailableKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 1 · Related 1Timeline
- 27-09-2026PublishedVulnerability first disclosed.
- 28-09-2026Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
4 scores · 4 sources · 1 versionLow 3.3Preferred score · CVE.org (CNA)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:LSourcesAll 4 agree
- OSV · UbuntuEcosystem advisory · calculated3.3LowCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
- OSV · DebianEcosystem advisory · calculated3.3LowCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
- NVDNIST3.3LowCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
EPSS trend
Probability
0.15%
Chance of exploitation in the next 30 days
Percentile
4%
Versus all other CVEs
30-day change
Change unavailable
Change unavailable
28-09-202621-10-2026
EPSS score0.15%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Debian1 product
- flatpak< 1.14.10-1~deb12u2 | < 1.16.4-1
Ubuntu1 product
- flatpakAll versions (No fix recorded)
2 vendors · 2 products
