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NVD / CVE Program· CNA GitHub_M

CVE-2025-65105: Apptainer ineffective application of selinux and apparmor --security options

Noroxi assessment

Priority: Monitor (action score 21/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.24% (FIRST EPSS).
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: apptainer apptainer 1.4.5.

Low priority for now. Upgrade to apptainer apptainer 1.4.5 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

Apptainer is an open source container platform. In Apptainer versions less than 1.4.5, a container can disable two of the forms of the little used --security option, in particular the forms --security=apparmor:<profile> and --security=selinux:<label> which otherwise put restrictions on operations that containers can do. The --security option has always been mentioned in Apptainer documentation as being a feature for the root user, although these forms do also work for unprivileged users on systems where the corresponding feature is enabled. Apparmor is enabled by default on Debian-based distributions and SElinux is enabled by default on RHEL-based distributions, but on SUSE it depends on the distribution version. This vulnerability is fixed in 1.4.5.

MediumCVSS 5.3 · v3.1—No exploit Fix available
Published
Dec 2, 2025
Updated
Oct 18, 2026
EPSS
0.2% · 16th percentile

Report tools

JSON

Action score

21

Monitor

Low priority for now.

CVSS
21 / 40 · 5.3 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
5.3
CNA · GitHub_M
4.5
0.8 point gap

CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2025-65105

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
lfprojectsapptainer

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • lfprojects apptainerbefore 1.4.5

Versions reported by the vendor

Affected version ranges reported by the assigning authority (GitHub_M). Independent of NVD's CPE analysis and usually ahead of it.

  • apptainer apptainer

    • < 1.4.5affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Alpine:v3.23apptainerbefore 1.4.5-r01.4.5-r0
Gogithub.com/apptainer/apptainerbefore 1.4.51.4.5
Gogithub.com/opencontainers/runcfrom 1.3.0-rc.1 · before 1.3.31.3.3
Gogithub.com/opencontainers/runcfrom 1.4.0-rc.1 · before 1.4.0-rc.31.4.0-rc.3
Gogithub.com/opencontainers/runcbefore 1.2.81.2.8
Gogithub.com/opencontainers/selinuxbefore 1.13.01.13.0
Gogithub.com/sylabs/singularity/v4from 4.2.0-rc.1 · before 4.3.54.3.5
Gogithub.com/sylabs/singularity/v4before 4.1.114.1.11
openSUSE:Leap 15.6apptainerbefore 1.4.5-150600.4.12.11.4.5-150600.4.12.1
openSUSE:Leap 15.6squashfusebefore 0.5.0-150600.3.2.10.5.0-150600.3.2.1
openSUSE:Tumbleweedapptainerbefore 1.4.5-1.11.4.5-1.1
SUSE:Linux Enterprise Module for HPC 15 SP7apptainerbefore 1.4.5-150600.4.12.11.4.5-150600.4.12.1
SUSE:Linux Enterprise Module for HPC 15 SP7squashfusebefore 0.5.0-150600.3.2.10.5.0-150600.3.2.1

Same product

lfprojects: all records

Other highest-scoring records for the same primary product.

  • CVE-2023-30549Unpatched extfs vulnerabilities are exploitable through suid-mode Apptainer
    31Monitor
  • CVE-2023-38496Apptainer's ineffective privileges drop when requesting container network
    13Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
apptainer apptainer1.4.5 · descriptionVendor (CNA)
alpine:apptainer1.4.5-r0 · Alpine:v3.23Package registry (OSV)
debian:apptainer1.4.5-1 · Debian:14Package registry (OSV)
Go:github.com/apptainer/apptainer1.4.5Package registry (OSV)
Go:github.com/opencontainers/runc1.2.8Package registry (OSV)
Go:github.com/opencontainers/runc1.3.3Package registry (OSV)
Go:github.com/opencontainers/runc1.4.0-rc.3Package registry (OSV)
Go:github.com/opencontainers/selinux1.13.0Package registry (OSV)
Go:github.com/sylabs/singularity/v44.1.11Package registry (OSV)
Go:github.com/sylabs/singularity/v44.3.5Package registry (OSV)
opensuse:apptainer1.4.5-150600.4.12.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:squashfuse0.5.0-150600.3.2.1 · openSUSE:Leap 15.6Package registry (OSV)
suse:apptainer1.4.5-150600.4.12.1 · SUSE:Linux Enterprise Module for HPC 15 SP7Package registry (OSV)
suse:squashfuse0.5.0-150600.3.2.1 · SUSE:Linux Enterprise Module for HPC 15 SP7Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
low · data or configuration can be modified
Availability
none
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
Low
Availability impact
None

Weakness class (CWE)

CWE-61 · UNIX Symbolic Link (Symlink) Following

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (5 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records