Medium 4.8Published Sep 15, 2026

CVE-2026-48785Apptainer: Incorrect path matching for 'limit container paths' directive

Updated under an hour ago (2026-10-19 09:10 UTC)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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.

CVSS: 4.8 MEDIUM (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L
Weakness (CWE): CWE-22
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Awaiting Analysis
Record last updated: Sep 15, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

apptainer apptainer apptainer:apptainer (from the name)	before 1.5.1	CNA record

References

https://github.com/apptainer/apptainer/security/advisories/GHSA-cr2j-534f-mf3gx-refsource-confirm
https://github.com/apptainer/apptainer/pull/3549x-refsource-misc
https://github.com/apptainer/apptainer/commit/0ff35257420e0c6cb97dac11d305749c893e5214x-refsource-misc
https://github.com/apptainer/apptainer/releases/tag/v1.5.1x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.