CVE Explorer

CVE-2026-24899

Fleet is open source device management software. Prior to version 4.82.0, a vulnerability in Fleet's Windows MDM enrollment flow allows authentication tokens from any Azure AD tenant to be accepted. Because Fleet validates JWT signatures using Microsoft's multi-tenant JWKS endpoint but does not enforce the `aud` (audience) or `iss` (issuer) claims, any Microsoft-signed Azure AD access token containing the expected scopes can be used to authenticate to Fleet's MDM endpoints. If Windows MDM is ena

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:e24f1c1bcaeb078bc49fb4ebe4c8335b8ea7da62b4c0c8085929d23875ea29e5

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"product":"fleet","vendor":"fleetdm","versions":[{"status":"affected","version":"< 4.82.0"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:276da9cdd60a0c190314c8810eb73e18b2b5996e315f518c59380b187592f3b0 · sha256:4a47ee5feebf2fd2… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"HIGH","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":8.2,"baseSeverity":"HIGH","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:276da9cdd60a0c190314c8810eb73e18b2b5996e315f518c59380b187592f3b0 · sha256:4a47ee5feebf2fd2… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion

{"cweId":"CWE-290","description":"CWE-290: Authentication Bypass by Spoofing","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:276da9cdd60a0c190314c8810eb73e18b2b5996e315f518c59380b187592f3b0 · sha256:4a47ee5feebf2fd2… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions

{"name":"https://github.com/fleetdm/fleet/releases/tag/fleet-v4.82.0","tags":["x_refsource_MISC"],"url":"https://github.com/fleetdm/fleet/releases/tag/fleet-v4.82.0"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:276da9cdd60a0c190314c8810eb73e18b2b5996e315f518c59380b187592f3b0 · sha256:4a47ee5feebf2fd2… · /containers/cna/references/1

{"name":"https://github.com/fleetdm/fleet/security/advisories/GHSA-ffg9-j72f-j6xm","tags":["x_refsource_CONFIRM"],"url":"https://github.com/fleetdm/fleet/security/advisories/GHSA-ffg9-j72f-j6xm"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:276da9cdd60a0c190314c8810eb73e18b2b5996e315f518c59380b187592f3b0 · sha256:4a47ee5feebf2fd2… · /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