Insecure default permissions in Portainer CE

MITRE NVD CVE.ORG JSON API Print: PDF PDF

Summary

CVECVE-2026-33590
StatePUBLISHED
AssignerENISA
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-28 20:16:23 UTC
Updated2026-05-29 15:06:44 UTC
DescriptionInsecure default settings of Portainer CE grant regular (non-admin) users privileges that allow host filesystem access and host-level code execution. An authenticated non-administrative user with endpoint access can exploit these settings to read host files or obtain root equivalent access on the host.

Risk And Classification

Primary CVSS: v4.0 8.5 HIGH from a6d3dc9e-0591-4a13-bce7-0f5b31ff6158

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS: 0.000500000 probability, percentile 0.159560000 (date 2026-05-29)

Problem Types: CWE-276 | CWE-276 CWE-276 Incorrect default permissions

VersionSourceTypeScoreSeverityVector
4.0a6d3dc9e-0591-4a13-bce7-0f5b31ff6158Secondary8.5HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/C...
4.0CNACVSS8.5HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
Low
User Interaction
Passive
Confidentiality
High
Integrity
High
Availability
High
Sub Conf.
High
Sub Integrity
High
Sub Availability
High

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Portainer Portainer Community Edition affected 2.39.0 semver Not specified
CNA Portainer Portainer Community Edition affected 2.38.0 semver Not specified

References

ReferenceSourceLinkTags
intwave.com/blog/2026/02/26/improving-portainer-security.html a6d3dc9e-0591-4a13-bce7-0f5b31ff6158 intwave.com
github.com/portainer/portainer/commit/3e2fdb1891e81a8e4c5c8beb60e45f07c8... a6d3dc9e-0591-4a13-bce7-0f5b31ff6158 github.com
github.com/portainer/portainer/commit/ac8fa7672e732b44b970c9eaf928eddd2c... a6d3dc9e-0591-4a13-bce7-0f5b31ff6158 github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
© CVE.report 2026 |

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report