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CVE-2026-44848

Portainer broken access control

8.8 HIGHPublic exploitEPSS 0.45%
  1. Published28 May 2026

Description

Portainer Community Edition is a lightweight service delivery platform for containerized applications that can be used to manage Docker, Swarm, Kubernetes and ACI environments. From 2.33.0 to before 2.33.8, 2.39.2, and 2.41.0, The Docker plugin management endpoints (/plugins/*) were not registered with a handler, so standard users with endpoint access could call privileged plugin operations — including installing and enabling plugins — directly against the underlying Docker daemon. The vulnerability is exposed when a non-admin Portainer user (Standard User role, or any role granted endpoint-level access) has been given access to a Docker endpoint via Portainer RBAC. This vulnerability is fixed in 2.33.8, 2.39.2, and 2.41.0.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

Portainer2.40.0 · ≥ 2.33.0 < 2.33.8 · ≥ 2.34.0 < 2.39.2

Remediation

Fixed in
Portainer≥ 2.33.8

References

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Frequently asked

Is CVE-2026-44848 being actively exploited?

CVE-2026-44848 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.45%.

How severe is CVE-2026-44848?

CVE-2026-44848 has a CVSS 3.1 base score of 8.8, rated high. EPSS estimates a 0.45% probability of exploitation.

Which products are affected by CVE-2026-44848?

Affected products include Portainer.

How do I fix CVE-2026-44848?

Upgrade affected software to a fixed version, for example Portainer 2.33.8 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-44848 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.