CVE Explorer

CVE-2026-26191

Fleet is open source device management software. Prior to version 4.81.0, a vulnerability in Fleet's software installer pipeline could allow a crafted software package to execute arbitrary commands as root (macOS/Linux) or SYSTEM (Windows) on managed endpoints when an uninstall is triggered. When a software package (.pkg, .deb, .rpm, .exe, or .msi) is uploaded to Fleet, metadata is extracted from the package binary and used to generate uninstall scripts. In affected versions, this metadata is no

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:271995c6abc52c4f3a38903a3afd85be414124413bec7376ca5c424ca39ebe21

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"product":"fleet","vendor":"fleetdm","versions":[{"status":"affected","version":"< 4.81.1"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:3c6abdb58e8ce38e49768ad25c80167d1590409b4eb464408d6b073917d57f5d · sha256:a680ef74e194613b… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":6,"baseSeverity":"MEDIUM","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"PASSIVE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH"},"metric_type":"cvssV4_0"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:3c6abdb58e8ce38e49768ad25c80167d1590409b4eb464408d6b073917d57f5d · sha256:a680ef74e194613b… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion

{"cweId":"CWE-78","description":"CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:3c6abdb58e8ce38e49768ad25c80167d1590409b4eb464408d6b073917d57f5d · sha256:a680ef74e194613b… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions

{"name":"https://github.com/fleetdm/fleet/releases/tag/fleet-v4.81.1","tags":["x_refsource_MISC"],"url":"https://github.com/fleetdm/fleet/releases/tag/fleet-v4.81.1"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:3c6abdb58e8ce38e49768ad25c80167d1590409b4eb464408d6b073917d57f5d · sha256:a680ef74e194613b… · /containers/cna/references/1

{"name":"https://github.com/fleetdm/fleet/security/advisories/GHSA-9vcr-g537-3w5v","tags":["x_refsource_CONFIRM"],"url":"https://github.com/fleetdm/fleet/security/advisories/GHSA-9vcr-g537-3w5v"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:3c6abdb58e8ce38e49768ad25c80167d1590409b4eb464408d6b073917d57f5d · sha256:a680ef74e194613b… · /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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