Detections
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Alpine: crun: security update to 1.28-r0

medium Tenable Cloud Security Plugin ID 444815

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - 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. (CVE-2026-47766)

Solution

Update the crun library and its related packages to version 1.28-r0 or later.

See Also

https://security.alpinelinux.org/vuln/CVE-2026-47766

Plugin Details

Severity: Medium

ID: 444815

Version: Revision 1.3

Type: Local

Published: 7/17/2026

Updated: 8/20/2026

Supported Sensors: Agentless Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.65

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS Score Source: CVE-2026-47766

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: Medium

Base Score: 5.1

Threat Score: 1.2

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Reference Information

CVE: CVE-2026-47766