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SCA: security update for github.com/apptainer/apptainer (GHSA-cr2j-534f-mf3g)

medium Tenable Cloud Security Plugin ID 443991

Description

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

 - Apptainer is an open source container platform. Prior to version 1.5.1, Image.AuthorizedPath applies plain
 string-prefix matching to the limit container paths directive in apptainer.conf, so an allowed path such
 as /data/safe also authorizes a sibling path such as /data/safe-but-unsafe. A local user can consequently
 run a container from a directory outside the administrator's intended allowlist when Apptainer operates in
 setuid mode. Installations that do not use setuid mode or do not configure limit container paths are not
 affected, and unrestricted user namespaces already allow users to run containers of their choice. This
 issue is fixed in version 1.5.1. (CVE-2026-48785)

Solution

Update the github.com/apptainer/apptainer library and its related packages to version 1.5.1 or later.

See Also

https://github.com/advisories/GHSA-cr2j-534f-mf3g

Plugin Details

Severity: Medium

ID: 443991

Version: Revision 1.3

Type: Local

Family: SCA Checks

Published: 6/26/2026

Updated: 9/16/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 2.8

Percentile: 22.52

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

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

CVSS Score Source: CVE-2026-48785

CVSS v3

Risk Factor: Medium

Base Score: 4.8

Temporal Score: 4.2

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 6/26/2026

Vulnerability Publication Date: 6/4/2026

Reference Information

CVE: CVE-2026-48785

cwe: CWE-22