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SCA: security update for github.com/opencontainers/runc (GHSA-xjvp-4fhw-gc47)

medium Tenable Cloud Security Plugin ID 443778

Description

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

 - runc is a CLI tool for spawning and running containers according to the OCI specification. In versions
 prior to 1.3.6, 1.4.0-rc.1, 1.4.0-rc.12, 1.5.0-rc.1, and 1.5.0-rc.1, when setting up the container rootfs,
 setupPtmx and setupDevSymlinks call os.Remove and os.Symlink with a filepath.Join string which allow an
 image with /dev as a symlink to trick runc into deleting files called ptmx on the host or creating a
 hardcoded set of symlinks with specific names and targets in an arbitrary pre-existing host directory.
 This issue is not exploitable under Docker, because Docker creates a top-level read-only layer that masks
 any malicious /dev symlink present in the container image — unlike some other Linux container tooling,
 whose higher-level runtimes built on runc remain exposed to exploitation via a malicious image. This issue
 has been fixed in versions 1.3.6, 1.4.3 and 1.5.0. (CVE-2026-41579)

Solution

Update the github.com/opencontainers/runc library and its related packages to version 1.3.6 or later.

See Also

https://github.com/advisories/GHSA-xjvp-4fhw-gc47

Plugin Details

Severity: Medium

ID: 443778

Version: Revision 1.2

Type: Local

Family: SCA Checks

Published: 6/23/2026

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3.2

Percentile: 51.08

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.6

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

CVSS Score Source: CVE-2026-41579

CVSS v3

Risk Factor: Low

Base Score: 3.3

Temporal Score: 2.9

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

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

CVSS v4

Risk Factor: Medium

Base Score: 4.8

Threat Score: 1.1

Threat Vector: CVSS:4.0/E:U

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 6/22/2026

Vulnerability Publication Date: 6/22/2026

Reference Information

CVE: CVE-2026-41579

cwe: CWE-61