Baitaphish
Security intelligence
SearchLatest briefing
CVE Explorer

CVE-2026-55761

Portainer Community Edition is a lightweight service delivery platform for containerized applications that can be used to manage Docker, Swarm, Kubernetes and ACI environments. In versions 2.39.0 through 2.39.3 and 2.40.0 until 2.43.0, unauthenticated restore and administrator initialization endpoints (/api/restore and /api/users/admin/init) remain accessible during the five-minute setup window for uninitialized instances, allowing a network attacker to restore a crafted backup or create the fir
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:1f5b3b01b15d7d549e8e9a5545efe022ee6987bd6538313918035a7eed09b433
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"portainer","vendor":"portainer","versions":[{"status":"affected","version":">= 2.39.0, < 2.39.4"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:11669214d5988aa0156a89f0a0dcb362cb4fc821d3d169523b23b3be4f0b94e2 · sha256:eea0525676ed7233… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":7.1,"baseSeverity":"HIGH","privilegesRequired":"NONE","subAvailabilityImpact":"HIGH","subConfidentialityImpact":"HIGH","subIntegrityImpact":"HIGH","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:H/SI:H/SA:H","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:11669214d5988aa0156a89f0a0dcb362cb4fc821d3d169523b23b3be4f0b94e2 · sha256:eea0525676ed7233… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-287","description":"CWE-287: Improper Authentication","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:11669214d5988aa0156a89f0a0dcb362cb4fc821d3d169523b23b3be4f0b94e2 · sha256:eea0525676ed7233… · /containers/cna/problemTypes/0/descriptions/0

Source references

6 source assertions
{"name":"https://github.com/portainer/portainer/commit/49f19107cf9a3540cbe406c9eb7f24390e1af02b","tags":["x_refsource_MISC"],"url":"https://github.com/portainer/portainer/commit/49f19107cf9a3540cbe406c9eb7f24390e1af02b"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:11669214d5988aa0156a89f0a0dcb362cb4fc821d3d169523b23b3be4f0b94e2 · sha256:eea0525676ed7233… · /containers/cna/references/2
{"name":"https://github.com/portainer/portainer/commit/d2b56efcb4e43c4168bb6688eee9f6bf22867312","tags":["x_refsource_MISC"],"url":"https://github.com/portainer/portainer/commit/d2b56efcb4e43c4168bb6688eee9f6bf22867312"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:11669214d5988aa0156a89f0a0dcb362cb4fc821d3d169523b23b3be4f0b94e2 · sha256:eea0525676ed7233… · /containers/cna/references/3
{"name":"https://github.com/portainer/portainer/issues/2770","tags":["x_refsource_MISC"],"url":"https://github.com/portainer/portainer/issues/2770"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:11669214d5988aa0156a89f0a0dcb362cb4fc821d3d169523b23b3be4f0b94e2 · sha256:eea0525676ed7233… · /containers/cna/references/1
{"name":"https://github.com/portainer/portainer/releases/tag/2.39.4","tags":["x_refsource_MISC"],"url":"https://github.com/portainer/portainer/releases/tag/2.39.4"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:11669214d5988aa0156a89f0a0dcb362cb4fc821d3d169523b23b3be4f0b94e2 · sha256:eea0525676ed7233… · /containers/cna/references/4
{"name":"https://github.com/portainer/portainer/releases/tag/2.43.0","tags":["x_refsource_MISC"],"url":"https://github.com/portainer/portainer/releases/tag/2.43.0"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:11669214d5988aa0156a89f0a0dcb362cb4fc821d3d169523b23b3be4f0b94e2 · sha256:eea0525676ed7233… · /containers/cna/references/5
{"name":"https://github.com/portainer/portainer/security/advisories/GHSA-x626-fcwx-f5pc","tags":["x_refsource_CONFIRM"],"url":"https://github.com/portainer/portainer/security/advisories/GHSA-x626-fcwx-f5pc"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:11669214d5988aa0156a89f0a0dcb362cb4fc821d3d169523b23b3be4f0b94e2 · sha256:eea0525676ed7233… · /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.

← Back to CVE Explorer