CVE Explorer

CVE-2026-34389

Fleet is open source device management software. Prior to 4.81.0, Fleet contained an issue in the user invitation flow where the email address provided during invite acceptance was not validated against the email address associated with the invite. An attacker who obtained a valid invite token could create an account under an arbitrary email address while inheriting the role granted by the invite, including global admin. Version 4.81.0 patches the issue.

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:ad3518076897849f545fa848d2ad93a6d8654b170647e042061d08da9387eb81

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"product":"fleet","vendor":"fleetdm","versions":[{"status":"affected","version":"< 4.81.0"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:4956a757e941e5a55c23ea31dfdbabb708dffe54b107fe625b327c358ee2c99b · sha256:f45d46a450f6df4c… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":4.9,"baseSeverity":"MEDIUM","privilegesRequired":"LOW","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH"},"metric_type":"cvssV4_0"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:4956a757e941e5a55c23ea31dfdbabb708dffe54b107fe625b327c358ee2c99b · sha256:f45d46a450f6df4c… · /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:v2:4956a757e941e5a55c23ea31dfdbabb708dffe54b107fe625b327c358ee2c99b · sha256:f45d46a450f6df4c… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion

{"name":"https://github.com/fleetdm/fleet/security/advisories/GHSA-4f9r-x588-pp2h","tags":["x_refsource_CONFIRM"],"url":"https://github.com/fleetdm/fleet/security/advisories/GHSA-4f9r-x588-pp2h"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:4956a757e941e5a55c23ea31dfdbabb708dffe54b107fe625b327c358ee2c99b · sha256:f45d46a450f6df4c… · /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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