CVE catalog
CVE-2026-47766
crun is an open source OCI Container Runtime fully written in C. Prior to version 1.28, crun's default device setup opens the container rootfs `/dev` directory without `O_NOFOLLOW`. If an OCI bundle c
- Severity
- High · CVSS 8.4
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.20% · Oct 25, 2026
crun is an open source OCI Container Runtime fully written in C. Prior to version 1.28, crun's default device setup opens the container rootfs `/dev` directory without `O_NOFOLLOW`. If an OCI bundle contains `rootfs/dev` as a symlink and the bundle configuration does not mount `/dev`, crun follows that symlink and creates the default device nodes and stdio symlinks at the symlink target outside the container rootfs. In a local rootful crun replay, this created fixed device nodes and symlinks outside the rootfs before crun returned failure. A pre-existing file named `ptmx` in the target directory was also replaced by crun's forced `ptmx -> pts/ptmx` symlink. Version 1.28 fixes the issue.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | crun | sid | 1.28-1 | fixed |
| Debian | crun | forky | 1.28-1 | fixed |
| Debian | crun | trixie | 1.21-1 | vulnerable |
| Debian | crun | bookworm | 1.8.1-1+deb12u1 | vulnerable |
| Cpe | crun | Not reported | Not reported | vulnerable |
| Suse | crun | linux micro 6.0 | 1.14-3.1 | fixed |
| Suse | crun | linux micro 6.1 | 1.15-slfo.1.1_2.1 | fixed |
| Opensuse | crun | tumbleweed | 1.28-1.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | crun | source | sid | 1.28-1 | not yet assigned | Not reported | Not reported |
| Debian | crun | source | forky | 1.28-1 | not yet assigned | Not reported | Not reported |
| Debian | crun | source | trixie | (unfixed) | not yet assigned | Not reported | Not reported |
| Debian | crun | source | bookworm | (unfixed) | not yet assigned | Not reported | Not reported |
| Suse | crun | rpm | linux micro 6.0 | 1.14-3.1 | Not reported | SUSE-SU-2026:22395-1 | Not reported |
| Suse | crun | rpm | linux micro 6.1 | 1.15-slfo.1.1_2.1 | Not reported | SUSE-SU-2026:22247-1 | Not reported |
| Opensuse | crun | rpm | tumbleweed | 1.28-1.1 | Not reported | OPENSUSE-SU-2026:11030-1 | Not reported |
Notes
[trixie] crun: Minor issue [bookworm] crun: Minor issue
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [crun]Affected
Details (2)
1.8.1-1+deb12u1· amd64 · bookwormAffected
nvd · crun · debian · bookworm; nvd · crun · debian · 12
1.8.1-1+deb12u1· arm64 · bookwormAffected
nvd · crun · debian · bookworm; nvd · crun · debian · 12
[Debian 13 (Trixie)]
- [crun]Affected
Details (2)
1.21-1· amd64 · trixieAffected
nvd · crun · debian · 13
1.21-1· arm64 · trixieAffected
nvd · crun · debian · 13
[openSUSE Tumbleweed]
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/suse-su-2026_22395-1.json]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-47766]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-47766]
- [https://osv.dev/vulnerability/SUSE-SU-2026:22247-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:22395-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:11030-1]
- [https://security-tracker.debian.org/tracker/CVE-2026-47766]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-47766.json]
[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]