RHSA-2026:23420: flatpak Red Hat
Published
Published 05-06-2026Last modified 06-07-2026
Vulnerability summary
RHSA-2026:23420 is a critical (CVSS 9.0) vulnerability in flatpak Red Hat.
CVSS score
9.0/10
010
Critical · v3.1 (OSV · Red hat), selected by version preferenceEPSS scoreNot scoredRisk metrics not yet published.
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded
Advisory lineage
Upstream 2 · Downstream 0Timeline
- 05-06-2026PublishedVulnerability first disclosed.
- 06-07-2026Last modifiedVulnerability information updated.
Description
Red Hat Security Advisory: flatpak security update
CVSS metrics
1 score · 1 source · 1 versionCritical 9.0Preferred score · OSV · Red hat (Ecosystem advisory) · calculated from vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:HSourcesSingle source
EPSS trend
No EPSS score has been published for this record yet.
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Redhat10 products
- flatpak< 0:1.16.0-5.el10_0.2
- flatpak-debuginfo< 0:1.16.0-5.el10_0.2
- flatpak-debugsource< 0:1.16.0-5.el10_0.2
- flatpak-devel< 0:1.16.0-5.el10_0.2
- flatpak-libs< 0:1.16.0-5.el10_0.2
1 vendor · 10 products
