CLSA-2026-1790844951

See a problem?
Import Source
https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1790844951.json
JSON Data
https://api.osv.dev/v1/vulns/CLSA-2026-1790844951
Upstream
Published
2026-10-01T08:56:03Z
Modified
2026-10-26T09:31:36Z
Summary
flatpak: Fix of CVE-2026-96808
Details
  • CVE-2026-96808: the revokefs writer validated the paths its unprivileged client sends with validate_path()/get_valid_path(), which rejected literal ".." components but followed symlinks, so a local user holding two revokefs sessions could make one session write through a symlink into the other and tamper with ostree objects after flatpak-system-helper had verified them; the request handlers now resolve the parent directory with glnx_chaseat(GLNX_CHASE_RESOLVE_BENEATH) through the new chase_parent(), chase_request_path(), chase_request_2path() and chase_request_any_and_path() helpers and act on the final component with *at() syscalls confined beneath basefd
References

Affected packages

TuxCare:AlmaLinux:9.6
flatpak

Package

Name
flatpak
Purl
pkg:rpm/tuxcare/flatpak?distro=almalinux-9.6

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.12.9-4.el9_6.tuxcare.els4

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1790844951.json"
flatpak-devel

Package

Name
flatpak-devel
Purl
pkg:rpm/tuxcare/flatpak-devel?distro=almalinux-9.6

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.12.9-4.el9_6.tuxcare.els4

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1790844951.json"
flatpak-libs

Package

Name
flatpak-libs
Purl
pkg:rpm/tuxcare/flatpak-libs?distro=almalinux-9.6

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.12.9-4.el9_6.tuxcare.els4

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1790844951.json"
flatpak-selinux

Package

Name
flatpak-selinux
Purl
pkg:rpm/tuxcare/flatpak-selinux?distro=almalinux-9.6

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.12.9-4.el9_6.tuxcare.els4

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1790844951.json"
flatpak-session-helper

Package

Name
flatpak-session-helper
Purl
pkg:rpm/tuxcare/flatpak-session-helper?distro=almalinux-9.6

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.12.9-4.el9_6.tuxcare.els4

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1790844951.json"
flatpak-tests

Package

Name
flatpak-tests
Purl
pkg:rpm/tuxcare/flatpak-tests?distro=almalinux-9.6

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.12.9-4.el9_6.tuxcare.els4

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1790844951.json"