How severe is CVE-2026-44849?

CVE-2026-44849 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-2026-44849 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-44849?

CVE-2026-44849 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-2026-44849?

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-2026-44849 have an EU (EUVD) identifier?

Yes. CVE-2026-44849 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-33063.

When was CVE-2026-44849 published?

CVE-2026-44849 was published on 2026-05-28 and last updated on 2026-06-17.

CVE-2026-44849

CVE-2026-44849 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% (27th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-33063
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, Portainer enforces seven EndpointSecuritySettings restrictions that administrators configure to restrict the container configurations non-admin users can launch: privileged mode, host PID namespace, device mapping, capabilities, sysctls, security-opt (Seccomp / AppArmor), and bind mounts. These restrictions are enforced on the standard container creation path, but several of them are not applied on the Docker Swarm service API. This vulnerability is fixed in 2.33.8, 2.39.2, and 2.41.0.

Frequently asked questions

What is CVE-2026-44849?: 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, Portainer enforces seven EndpointSecuritySettings restrictions that administrators configure to restrict the container configurations non-admin users can launch: privileged mode, host PID namespace, device mapping, capabilities, sysctls, security-opt (Seccomp / AppArmor), and bind mounts. These restrictions are enforced on the standard container creation path, but several of them are not applied on the Docker Swarm service API. This vulnerability is fixed in 2.33.8, 2.39.2, and 2.41.0.
How severe is CVE-2026-44849?: CVE-2026-44849 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-2026-44849 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-44849?: CVE-2026-44849 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-2026-44849?: 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-2026-44849 have an EU (EUVD) identifier?: Yes. CVE-2026-44849 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-33063.
When was CVE-2026-44849 published?: CVE-2026-44849 was published on 2026-05-28 and last updated on 2026-06-17.

References

https://github.com/portainer/portainer/security/advisories/GHSA-5fxq-qcf3-244w

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.

Browse all CWE-862 (Missing Authorization) vulnerabilities →

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)