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CVE-2026-33590

Insecure 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.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:86a33c309eaefc4731944052d537232d18c024237f96feefefffaf16ebf21fcf
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"defaultStatus":"unaffected","product":"Portainer Community Edition","vendor":"Portainer","versions":[{"lessThan":"2.39.0","status":"affected","version":"0","versionType":"semver"},{"lessThan":"2.38.0","status":"affected","version":"0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:e87a6f47a160f9362780e8d361c6ab7e2c8b77ceb4b707a2879d174cef365a2e · sha256:65a0281810981f25… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.5,"baseSeverity":"HIGH","exploitMaturity":"PROOF_OF_CONCEPT","privilegesRequired":"LOW","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"HIGH","subConfidentialityImpact":"HIGH","subIntegrityImpact":"HIGH","userInteraction":"PASSIVE","valueDensity":"NOT_DEFINED","vectorString":"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","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentiali…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:e87a6f47a160f9362780e8d361c6ab7e2c8b77ceb4b707a2879d174cef365a2e · sha256:65a0281810981f25… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-276","description":"CWE-276 Incorrect default permissions","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:e87a6f47a160f9362780e8d361c6ab7e2c8b77ceb4b707a2879d174cef365a2e · sha256:65a0281810981f25… · /containers/cna/problemTypes/0/descriptions/0

Source references

4 source assertions
{"url":"http://www.openwall.com/lists/oss-security/2026/06/12/2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e87a6f47a160f9362780e8d361c6ab7e2c8b77ceb4b707a2879d174cef365a2e · sha256:65a0281810981f25… · /containers/adp/1/references/0
{"tags":["issue-tracking"],"url":"https://github.com/portainer/portainer/commit/3e2fdb1891e81a8e4c5c8beb60e45f07c8ecae52"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e87a6f47a160f9362780e8d361c6ab7e2c8b77ceb4b707a2879d174cef365a2e · sha256:65a0281810981f25… · /containers/cna/references/2
{"tags":["issue-tracking"],"url":"https://github.com/portainer/portainer/commit/ac8fa7672e732b44b970c9eaf928eddd2c68796c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e87a6f47a160f9362780e8d361c6ab7e2c8b77ceb4b707a2879d174cef365a2e · sha256:65a0281810981f25… · /containers/cna/references/1
{"tags":["third-party-advisory"],"url":"https://intwave.com/blog/2026/02/26/improving-portainer-security.html"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e87a6f47a160f9362780e8d361c6ab7e2c8b77ceb4b707a2879d174cef365a2e · sha256:65a0281810981f25… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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