How severe is CVE-2026-44848?

CVE-2026-44848 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-44848 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-44848?

CVE-2026-44848 primarily affects Portainer. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-44848?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-44848 have an EU (EUVD) identifier?

Yes. CVE-2026-44848 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-33064.

When was CVE-2026-44848 published?

CVE-2026-44848 was published on 2026-05-28 and last updated on 2026-06-17.

CVE-2026-44848

CVE-2026-44848 is a high-severity vulnerability in Portainer with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-862.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v4: 9.4
EPSS exploit prediction: 0% (25th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-33064
Weakness: CWE-862
Affected product: Portainer
Published: 2026-05-28
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2026-44848?: 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.
How severe is CVE-2026-44848?: CVE-2026-44848 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-44848 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-44848?: CVE-2026-44848 primarily affects Portainer. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-44848?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-44848 have an EU (EUVD) identifier?: Yes. CVE-2026-44848 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-33064.
When was CVE-2026-44848 published?: CVE-2026-44848 was published on 2026-05-28 and last updated on 2026-06-17.

References

https://github.com/portainer/portainer/security/advisories/GHSA-rrmm-9v76-h3p4

Affected products (2)

cpe:2.3:a:portainer:portainer:*:*:*:*:community:*:*:*
cpe:2.3:a:portainer:portainer:2.40.0:*:*:*:community:*:*:*

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CVE-2025-30416 — Critical (CVSS 10.0): Sensitive data disclosure and manipulation due to missing authorization. The following products are affected: Acronis…
CVE-2025-45854 — Critical (CVSS 10.0): /server/executeExec of JEHC-BPM 2.0.1 allows attackers to execute arbitrary code via execParams.

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Threat intelligence

Threat-intel indicators referencing this CVE:

171.25.158.80 (ipv4-addr)
160.191.87.178 (ipv4-addr)
51.159.103.72 (ipv4-addr)
103.122.34.142 (ipv4-addr)