DEBIAN-CVE-2026-79619

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Please try reporting it to the source first.
Source
https://security-tracker.debian.org/tracker/CVE-2026-79619
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-79619.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-79619
Upstream
Published
2026-08-26T13:19:24Z
Modified
2026-09-14T17:03:49Z
Severity
  • 7.3 (High) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator
Summary
[none]
Details

On Linux, several OpenZFS ioctl authorization checks accept a capability held only within a user-created, unprivileged namespace as equivalent to real host privilege, allowing an unprivileged local user to perform operations that should require root. Affected operations include pool-administrative operations (eg create, import, destroy), pool event log access (zpool events) and fault injection (zinject). Exploiting the problem requires only that the local user is permitted to open /dev/zfs (governed by local device permissions) and that the kernel permits unprivileged user namespace creation. No prior access to the target pool or its underlying devices is needed.

References

Affected packages

Debian:12 / zfs-linux

Package

Name
zfs-linux
Purl
pkg:deb/debian/zfs-linux?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.6.5.5-1
0.6.5.6-1
0.6.5.6-2
0.6.5.7-1
0.6.5.7-2~bpo8+1
0.6.5.7-2
0.6.5.8-1~bpo8+1
0.6.5.8-1
0.6.5.8-2~bpo8+1
0.6.5.8-2
0.6.5.8-3
0.6.5.9-1
0.6.5.9-2~bpo8+1
0.6.5.9-2
0.6.5.9-3
0.6.5.9-4
0.6.5.9-5~bpo8+1
0.6.5.9-5
0.6.5.9-5+sparc64
0.6.5.10-1
0.6.5.11-1~bpo8+1
0.6.5.11-1~bpo9+1
0.6.5.11-1
0.7.3-1
0.7.3-2
0.7.3-3~bpo8+1
0.7.3-3~bpo9+1
0.7.3-3
0.7.4-1~bpo8+1
0.7.4-1~bpo9+1
0.7.4-1
0.7.5-1~bpo9+1
0.7.5-1
0.7.6-1~bpo8+1
0.7.6-1~bpo9+1
0.7.6-1
0.7.9-0.1
0.7.9-1
0.7.9-2
0.7.9-3~bpo8+1
0.7.9-3~bpo9+1
0.7.9-3
0.7.11-1~bpo8+1
0.7.11-1~bpo9+1
0.7.11-1
0.7.11-2
0.7.11-3
0.7.12-1~bpo9+1
0.7.12-1
0.7.12-2
0.7.12-3
0.7.12-4
0.7.12-5
0.7.13-1~bpo9+1
0.7.13-1~bpo10+1
0.7.13-1
0.8.0~rc3-1
0.8.0~rc4-1
0.8.0-1
0.8.0-2
0.8.1-1
0.8.1-2
0.8.1-3
0.8.1-4~bpo10+1
0.8.1-4
0.8.2-1
0.8.2-2~bpo10+1
0.8.2-2
0.8.2-3~bpo10+1
0.8.2-3
0.8.2-4
0.8.2-5
0.8.3-1~bpo10+1
0.8.3-1
0.8.3-2
0.8.4-1~bpo10+1
0.8.4-1
0.8.4-2~bpo10+1
0.8.4-2
0.8.5-1
0.8.5-2~bpo10+1
0.8.5-2
0.8.5-3~bpo10+1
0.8.5-3
0.8.6-1~bpo10+1
0.8.6-1
2.*
2.0.0-1~exp1
2.0.1-1~exp1
2.0.1-1
2.0.1-2
2.0.1-3
2.0.2-1~bpo10+1
2.0.2-1
2.0.3-1~bpo10+1
2.0.3-1
2.0.3-2
2.0.3-3
2.0.3-4
2.0.3-5
2.0.3-6
2.0.3-7
2.0.3-8~bpo10+1
2.0.3-8
2.0.3-9~bpo10+1
2.0.3-9
2.0.6-1~bpo10+1
2.0.6-1~bpo11+1
2.0.6-1
2.0.6-2
2.0.7-1~bpo10+1
2.1.1-1
2.1.1-2
2.1.1-3
2.1.2-1~bpo11+1
2.1.2-1
2.1.4-1~bpo11+1
2.1.4-1
2.1.5-1~bpo11+1
2.1.5-1
2.1.6-1
2.1.6-2
2.1.6-3~bpo11+1
2.1.6-3
2.1.7-1~bpo11+1
2.1.7-1
2.1.7-2
2.1.8-1
2.1.9-1~bpo11+1
2.1.9-1
2.1.9-2
2.1.9-3~bpo11+1
2.1.9-3
2.1.9-4
2.1.11-1~bpo11+1
2.1.11-1
2.1.11-1+deb12u1
2.1.12-1
2.1.12-2~bpo12+1
2.1.12-2
2.1.13-1~bpo11+1
2.1.13-1~bpo12+1
2.1.13-1
2.1.13-2~bpo11+1
2.1.13-2~bpo12+1
2.1.13-2
2.1.14-1~bpo11+1
2.1.14-1~bpo12+1
2.1.14-1
2.2.0-1~exp1
2.2.1-1~exp1
2.2.1-1~exp2
2.2.2-1~exp1
2.2.2-1
2.2.2-2
2.2.2-3~bpo12+1
2.2.2-3
2.2.2-4~bpo12+1
2.2.2-4
2.2.2-5~exp1
2.2.2-5~exp2
2.2.2-5~exp3
2.2.3-1~bpo12+1
2.2.3-1
2.2.3-2~bpo12+1
2.2.3-2
2.2.4-1~bpo12+1
2.2.4-1
2.2.4-2
2.2.5-1~bpo12+1
2.2.5-1
2.2.6-1~bpo12+1
2.2.6-1~bpo12+2
2.2.6-1~bpo12+3
2.2.6-1
2.2.6-2
2.2.7-1~bpo12+1
2.2.7-1
2.2.7-2
2.3.0~rc5-1~exp1
2.3.0~rc5-1~exp1.1
2.3.0-1~exp1
2.3.0-1
2.3.0-2~exp1
2.3.0-2
2.3.1-1~bpo12+1
2.3.1-1
2.3.2-1
2.3.2-2~bpo12+1
2.3.2-2~bpo12+2
2.3.2-2
2.3.3-1~bpo13+1
2.3.3-1
2.3.4~git20250812.3b64a96-1
2.3.4-1~bpo13+1
2.3.4-1
2.3.5-1
2.3.5-2~bpo13+1
2.3.5-2
2.4.0-1~bpo13+1
2.4.0-1~exp1
2.4.0-1
2.4.1-1~bpo13+1
2.4.1-1
2.4.2-1~bpo13+1
2.4.2-1
2.4.2-2
2.4.3-1~bpo13+1
2.4.3-1
2.4.3-2~bpo13+1
2.4.3-2
2.4.3-3
2.4.4-1~bpo13+1
2.4.4-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-79619.json"

Debian:13 / zfs-linux

Package

Name
zfs-linux
Purl
pkg:deb/debian/zfs-linux?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2.3.9-0+deb13u1

Affected versions

0.*
0.6.5.5-1
0.6.5.6-1
0.6.5.6-2
0.6.5.7-1
0.6.5.7-2~bpo8+1
0.6.5.7-2
0.6.5.8-1~bpo8+1
0.6.5.8-1
0.6.5.8-2~bpo8+1
0.6.5.8-2
0.6.5.8-3
0.6.5.9-1
0.6.5.9-2~bpo8+1
0.6.5.9-2
0.6.5.9-3
0.6.5.9-4
0.6.5.9-5~bpo8+1
0.6.5.9-5
0.6.5.9-5+sparc64
0.6.5.10-1
0.6.5.11-1~bpo8+1
0.6.5.11-1~bpo9+1
0.6.5.11-1
0.7.3-1
0.7.3-2
0.7.3-3~bpo8+1
0.7.3-3~bpo9+1
0.7.3-3
0.7.4-1~bpo8+1
0.7.4-1~bpo9+1
0.7.4-1
0.7.5-1~bpo9+1
0.7.5-1
0.7.6-1~bpo8+1
0.7.6-1~bpo9+1
0.7.6-1
0.7.9-0.1
0.7.9-1
0.7.9-2
0.7.9-3~bpo8+1
0.7.9-3~bpo9+1
0.7.9-3
0.7.11-1~bpo8+1
0.7.11-1~bpo9+1
0.7.11-1
0.7.11-2
0.7.11-3
0.7.12-1~bpo9+1
0.7.12-1
0.7.12-2
0.7.12-3
0.7.12-4
0.7.12-5
0.7.13-1~bpo9+1
0.7.13-1~bpo10+1
0.7.13-1
0.8.0~rc3-1
0.8.0~rc4-1
0.8.0-1
0.8.0-2
0.8.1-1
0.8.1-2
0.8.1-3
0.8.1-4~bpo10+1
0.8.1-4
0.8.2-1
0.8.2-2~bpo10+1
0.8.2-2
0.8.2-3~bpo10+1
0.8.2-3
0.8.2-4
0.8.2-5
0.8.3-1~bpo10+1
0.8.3-1
0.8.3-2
0.8.4-1~bpo10+1
0.8.4-1
0.8.4-2~bpo10+1
0.8.4-2
0.8.5-1
0.8.5-2~bpo10+1
0.8.5-2
0.8.5-3~bpo10+1
0.8.5-3
0.8.6-1~bpo10+1
0.8.6-1
2.*
2.0.0-1~exp1
2.0.1-1~exp1
2.0.1-1
2.0.1-2
2.0.1-3
2.0.2-1~bpo10+1
2.0.2-1
2.0.3-1~bpo10+1
2.0.3-1
2.0.3-2
2.0.3-3
2.0.3-4
2.0.3-5
2.0.3-6
2.0.3-7
2.0.3-8~bpo10+1
2.0.3-8
2.0.3-9~bpo10+1
2.0.3-9
2.0.6-1~bpo10+1
2.0.6-1~bpo11+1
2.0.6-1
2.0.6-2
2.0.7-1~bpo10+1
2.1.1-1
2.1.1-2
2.1.1-3
2.1.2-1~bpo11+1
2.1.2-1
2.1.4-1~bpo11+1
2.1.4-1
2.1.5-1~bpo11+1
2.1.5-1
2.1.6-1
2.1.6-2
2.1.6-3~bpo11+1
2.1.6-3
2.1.7-1~bpo11+1
2.1.7-1
2.1.7-2
2.1.8-1
2.1.9-1~bpo11+1
2.1.9-1
2.1.9-2
2.1.9-3~bpo11+1
2.1.9-3
2.1.9-4
2.1.11-1~bpo11+1
2.1.11-1
2.1.12-1
2.1.12-2~bpo12+1
2.1.12-2
2.1.13-1~bpo11+1
2.1.13-1~bpo12+1
2.1.13-1
2.1.13-2~bpo11+1
2.1.13-2~bpo12+1
2.1.13-2
2.1.14-1~bpo11+1
2.1.14-1~bpo12+1
2.1.14-1
2.2.0-1~exp1
2.2.1-1~exp1
2.2.1-1~exp2
2.2.2-1~exp1
2.2.2-1
2.2.2-2
2.2.2-3~bpo12+1
2.2.2-3
2.2.2-4~bpo12+1
2.2.2-4
2.2.2-5~exp1
2.2.2-5~exp2
2.2.2-5~exp3
2.2.3-1~bpo12+1
2.2.3-1
2.2.3-2~bpo12+1
2.2.3-2
2.2.4-1~bpo12+1
2.2.4-1
2.2.4-2
2.2.5-1~bpo12+1
2.2.5-1
2.2.6-1~bpo12+1
2.2.6-1~bpo12+2
2.2.6-1~bpo12+3
2.2.6-1
2.2.6-2
2.2.7-1~bpo12+1
2.2.7-1
2.2.7-2
2.3.0~rc5-1~exp1
2.3.0~rc5-1~exp1.1
2.3.0-1~exp1
2.3.0-1
2.3.0-2~exp1
2.3.0-2
2.3.1-1~bpo12+1
2.3.1-1
2.3.2-1
2.3.2-2~bpo12+1
2.3.2-2~bpo12+2
2.3.2-2
2.3.3-1~bpo13+1
2.3.3-1
2.3.4~git20250812.3b64a96-1
2.3.4-1~bpo13+1
2.3.4-1
2.3.5-1
2.3.5-2~bpo13+1
2.3.5-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-79619.json"

Debian:14 / zfs-linux

Package

Name
zfs-linux
Purl
pkg:deb/debian/zfs-linux?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2.4.4-1

Affected versions

0.*
0.6.5.5-1
0.6.5.6-1
0.6.5.6-2
0.6.5.7-1
0.6.5.7-2~bpo8+1
0.6.5.7-2
0.6.5.8-1~bpo8+1
0.6.5.8-1
0.6.5.8-2~bpo8+1
0.6.5.8-2
0.6.5.8-3
0.6.5.9-1
0.6.5.9-2~bpo8+1
0.6.5.9-2
0.6.5.9-3
0.6.5.9-4
0.6.5.9-5~bpo8+1
0.6.5.9-5
0.6.5.9-5+sparc64
0.6.5.10-1
0.6.5.11-1~bpo8+1
0.6.5.11-1~bpo9+1
0.6.5.11-1
0.7.3-1
0.7.3-2
0.7.3-3~bpo8+1
0.7.3-3~bpo9+1
0.7.3-3
0.7.4-1~bpo8+1
0.7.4-1~bpo9+1
0.7.4-1
0.7.5-1~bpo9+1
0.7.5-1
0.7.6-1~bpo8+1
0.7.6-1~bpo9+1
0.7.6-1
0.7.9-0.1
0.7.9-1
0.7.9-2
0.7.9-3~bpo8+1
0.7.9-3~bpo9+1
0.7.9-3
0.7.11-1~bpo8+1
0.7.11-1~bpo9+1
0.7.11-1
0.7.11-2
0.7.11-3
0.7.12-1~bpo9+1
0.7.12-1
0.7.12-2
0.7.12-3
0.7.12-4
0.7.12-5
0.7.13-1~bpo9+1
0.7.13-1~bpo10+1
0.7.13-1
0.8.0~rc3-1
0.8.0~rc4-1
0.8.0-1
0.8.0-2
0.8.1-1
0.8.1-2
0.8.1-3
0.8.1-4~bpo10+1
0.8.1-4
0.8.2-1
0.8.2-2~bpo10+1
0.8.2-2
0.8.2-3~bpo10+1
0.8.2-3
0.8.2-4
0.8.2-5
0.8.3-1~bpo10+1
0.8.3-1
0.8.3-2
0.8.4-1~bpo10+1
0.8.4-1
0.8.4-2~bpo10+1
0.8.4-2
0.8.5-1
0.8.5-2~bpo10+1
0.8.5-2
0.8.5-3~bpo10+1
0.8.5-3
0.8.6-1~bpo10+1
0.8.6-1
2.*
2.0.0-1~exp1
2.0.1-1~exp1
2.0.1-1
2.0.1-2
2.0.1-3
2.0.2-1~bpo10+1
2.0.2-1
2.0.3-1~bpo10+1
2.0.3-1
2.0.3-2
2.0.3-3
2.0.3-4
2.0.3-5
2.0.3-6
2.0.3-7
2.0.3-8~bpo10+1
2.0.3-8
2.0.3-9~bpo10+1
2.0.3-9
2.0.6-1~bpo10+1
2.0.6-1~bpo11+1
2.0.6-1
2.0.6-2
2.0.7-1~bpo10+1
2.1.1-1
2.1.1-2
2.1.1-3
2.1.2-1~bpo11+1
2.1.2-1
2.1.4-1~bpo11+1
2.1.4-1
2.1.5-1~bpo11+1
2.1.5-1
2.1.6-1
2.1.6-2
2.1.6-3~bpo11+1
2.1.6-3
2.1.7-1~bpo11+1
2.1.7-1
2.1.7-2
2.1.8-1
2.1.9-1~bpo11+1
2.1.9-1
2.1.9-2
2.1.9-3~bpo11+1
2.1.9-3
2.1.9-4
2.1.11-1~bpo11+1
2.1.11-1
2.1.12-1
2.1.12-2~bpo12+1
2.1.12-2
2.1.13-1~bpo11+1
2.1.13-1~bpo12+1
2.1.13-1
2.1.13-2~bpo11+1
2.1.13-2~bpo12+1
2.1.13-2
2.1.14-1~bpo11+1
2.1.14-1~bpo12+1
2.1.14-1
2.2.0-1~exp1
2.2.1-1~exp1
2.2.1-1~exp2
2.2.2-1~exp1
2.2.2-1
2.2.2-2
2.2.2-3~bpo12+1
2.2.2-3
2.2.2-4~bpo12+1
2.2.2-4
2.2.2-5~exp1
2.2.2-5~exp2
2.2.2-5~exp3
2.2.3-1~bpo12+1
2.2.3-1
2.2.3-2~bpo12+1
2.2.3-2
2.2.4-1~bpo12+1
2.2.4-1
2.2.4-2
2.2.5-1~bpo12+1
2.2.5-1
2.2.6-1~bpo12+1
2.2.6-1~bpo12+2
2.2.6-1~bpo12+3
2.2.6-1
2.2.6-2
2.2.7-1~bpo12+1
2.2.7-1
2.2.7-2
2.3.0~rc5-1~exp1
2.3.0~rc5-1~exp1.1
2.3.0-1~exp1
2.3.0-1
2.3.0-2~exp1
2.3.0-2
2.3.1-1~bpo12+1
2.3.1-1
2.3.2-1
2.3.2-2~bpo12+1
2.3.2-2~bpo12+2
2.3.2-2
2.3.3-1~bpo13+1
2.3.3-1
2.3.4~git20250812.3b64a96-1
2.3.4-1~bpo13+1
2.3.4-1
2.3.5-1
2.3.5-2~bpo13+1
2.3.5-2
2.4.0-1~bpo13+1
2.4.0-1~exp1
2.4.0-1
2.4.1-1~bpo13+1
2.4.1-1
2.4.2-1~bpo13+1
2.4.2-1
2.4.2-2
2.4.3-1~bpo13+1
2.4.3-1
2.4.3-2~bpo13+1
2.4.3-2
2.4.3-3
2.4.4-1~bpo13+1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-79619.json"