CVE-2026-34388

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Source
https://cve.org/CVERecord?id=CVE-2026-34388
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-34388.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-34388
Aliases
Downstream
Related
Published
2026-03-27T19:13:00.388Z
Modified
2026-04-10T05:43:01.689791Z
Severity
  • 6.6 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U CVSS Calculator
Summary
Fleet vulnerable to Denial of Service via unhandled gRPC log type in launcher endpoint
Details

Fleet is open source device management software. Prior to 4.81.0, a denial-of-service vulnerability in Fleet's gRPC Launcher endpoint allows an authenticated host to crash the entire Fleet server process by sending an unexpected log type value. The server terminates immediately, disrupting all connected hosts, MDM enrollments, and API consumers. Version 4.81.0 patches the issue.

Database specific 
{
    "cwe_ids": [
        "CWE-703"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34388.json",
    "cna_assigner": "GitHub_M"
}
References

Affected packages

Git / github.com/fleetdm/fleet

Affected ranges

Type
GIT
Repo
https://github.com/fleetdm/fleet
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
9dbcc38ce1046074ac230804f32ae1689026041f
Database specific 
{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "fixed": "4.81.0"
        }
    ]
}

Affected versions

1.*
1.0.0
1.0.0-rc1
1.0.0-rc2
1.0.1
1.0.2
1.0.3
1.0.4
1.0.5
1.0.6
1.0.7
2.*
2.0.0
2.0.0-rc1
2.0.0-rc2
2.0.0-rc3
2.0.0-rc4
2.0.0-rc5
2.0.1
2.0.2
2.1.0
2.1.1
2.1.2
2.2.0
2.3.0
2.4.0
2.5.0
2.6.0
3.*
3.0.0
3.1.0
3.10.0
3.10.1
3.11.0
3.12.0
3.13.0
3.2.0
3.3.0
3.4.0
3.5.0
3.5.1
3.6.0
3.7.0
3.7.1
3.7.2
3.7.3
3.8.0
3.9.0
fleet-v4.*
fleet-v4.10.0
fleet-v4.11.0
fleet-v4.12.0
fleet-v4.13.0
fleet-v4.14.0
fleet-v4.15.0
fleet-v4.16.0
fleet-v4.17.0
fleet-v4.18.0
fleet-v4.19.0
fleet-v4.2.0
fleet-v4.2.2
fleet-v4.20.0
fleet-v4.22.0
fleet-v4.23.0
fleet-v4.24.0
fleet-v4.25.0
fleet-v4.26.0
fleet-v4.27.0
fleet-v4.28.0
fleet-v4.29.0
fleet-v4.3.0
fleet-v4.3.1
fleet-v4.30.0
fleet-v4.31.0
fleet-v4.32.0
fleet-v4.33.0
fleet-v4.34.0
fleet-v4.35.0
fleet-v4.36.0
fleet-v4.37.0
fleet-v4.38.0
fleet-v4.39.0
fleet-v4.4.0
fleet-v4.40.0
fleet-v4.41.0
fleet-v4.43.0
fleet-v4.45.0
fleet-v4.47.0
fleet-v4.48.0
fleet-v4.49.0
fleet-v4.5.0
fleet-v4.50.0
fleet-v4.51.0
fleet-v4.6.0
fleet-v4.6.1
fleet-v4.7.0
fleet-v4.8.0
Other
fleetctl-docker-deps-20260113
fleetctl-docker-deps-20260129
orbit-test-build
fleetctl-docker-deps-v4.*
fleetctl-docker-deps-v4.60.0
fleetctl-docker-deps-v4.76.1
fleetd-android-v1.*
fleetd-android-v1.0.0
fleetd-chrome-v1.*
fleetd-chrome-v1.1.0-beta
fleetd-chrome-v1.1.1-beta
fleetd-chrome-v1.1.3
fleetd-chrome-v1.1.3-beta
fleetd-chrome-v1.2.0
fleetd-chrome-v1.2.0-beta
fleetd-chrome-v1.2.1-beta
fleetd-chrome-v1.3.0
fleetd-chrome-v1.3.1
orbit-v0.*
orbit-v0.0.11
orbit-v0.0.12
orbit-v0.0.13
orbit-v0.0.4
orbit-v0.0.5
orbit-v0.0.6
orbit-v0.0.7
orbit-v0.0.9
orbit-v1.*
orbit-v1.0.0
orbit-v1.1.0
orbit-v1.10.0
orbit-v1.11.0
orbit-v1.12.0
orbit-v1.12.1
orbit-v1.13.0
orbit-v1.14.0
orbit-v1.15.0
orbit-v1.16.0
orbit-v1.16.0-2
orbit-v1.17.0
orbit-v1.18.0-RC
orbit-v1.18.2
orbit-v1.18.3
orbit-v1.2.0-rc1
orbit-v1.20.0
orbit-v1.3.0
orbit-v1.3.0-rc
orbit-v1.4.0
orbit-v1.4.0-rc
orbit-v1.4.1
orbit-v1.41.0
orbit-v1.42.0
orbit-v1.43.0
orbit-v1.45.0
orbit-v1.48.0
orbit-v1.49.0
orbit-v1.5.0
orbit-v1.50.0
orbit-v1.51.0
orbit-v1.7.0
orbit-v1.8.0
orbit-v1.9.0
orbit-v1.9.1
rc-fleetctl-test-v4.*
rc-fleetctl-test-v4.63.0
tf-mod-addon-bfldf-v1.*
tf-mod-addon-bfldf-v1.1.0
tf-mod-addon-byo-file-carving-target-account-v1.*
tf-mod-addon-byo-file-carving-target-account-v1.0.0
tf-mod-addon-byo-file-carving-target-account-v1.1.0
tf-mod-addon-byo-file-carving-v1.*
tf-mod-addon-byo-file-carving-v1.0.0
tf-mod-addon-byo-file-carving-v1.1.0
tf-mod-addon-byo-firehose-logging-destination-firehose-v1.*
tf-mod-addon-byo-firehose-logging-destination-firehose-v1.0.0
tf-mod-addon-byo-firehose-logging-destination-firehose-v1.1.0
tf-mod-addon-byo-firehose-logging-destination-firehose-v2.*
tf-mod-addon-byo-firehose-logging-destination-firehose-v2.0.0
tf-mod-addon-byo-firehose-logging-destination-firehose-v2.0.1
tf-mod-addon-byo-firehose-logging-destination-firehose-v2.0.2
tf-mod-addon-byo-firehose-logging-destination-firehose-v2.0.3
tf-mod-addon-byo-firehose-logging-destination-target-account-v1.*
tf-mod-addon-byo-firehose-logging-destination-target-account-v1.0.0
tf-mod-addon-byo-firehose-logging-destination-target-account-v1.1.0
tf-mod-addon-byo-kinesis-logging-destination-kinesis-v1.*
tf-mod-addon-byo-kinesis-logging-destination-kinesis-v1.0.0
tf-mod-addon-byo-kinesis-logging-destination-kinesis-v1.0.1
tf-mod-addon-byo-kinesis-logging-destination-target-account-v1.*
tf-mod-addon-byo-kinesis-logging-destination-target-account-v1.0.0
tf-mod-addon-external-vuln-scans-v1.*
tf-mod-addon-external-vuln-scans-v1.0.0
tf-mod-addon-external-vuln-scans-v2.*
tf-mod-addon-external-vuln-scans-v2.0.0
tf-mod-addon-external-vuln-scans-v2.0.1
tf-mod-addon-external-vuln-scans-v2.0.2
tf-mod-addon-external-vuln-scans-v2.1.0
tf-mod-addon-external-vuln-scans-v2.2.0
tf-mod-addon-geolite2-v1.*
tf-mod-addon-geolite2-v1.0.0
tf-mod-addon-logging-alb-v1.*
tf-mod-addon-logging-alb-v1.0.0
tf-mod-addon-logging-alb-v1.0.1
tf-mod-addon-logging-alb-v1.0.2
tf-mod-addon-logging-alb-v1.1.0
tf-mod-addon-logging-alb-v1.1.1
tf-mod-addon-logging-alb-v1.2.0
tf-mod-addon-logging-destination-firehose-v1.*
tf-mod-addon-logging-destination-firehose-v1.0.0
tf-mod-addon-logging-destination-firehose-v1.1.0
tf-mod-addon-logging-destination-firehose-v1.1.1
tf-mod-addon-mdm-v1.*
tf-mod-addon-mdm-v1.0.0
tf-mod-addon-mdm-v1.1.0
tf-mod-addon-mdm-v1.2.0
tf-mod-addon-mdm-v1.2.1
tf-mod-addon-mdm-v1.2.2
tf-mod-addon-mdm-v1.3.0
tf-mod-addon-mdm-v1.4.0
tf-mod-addon-mdm-v1.4.1
tf-mod-addon-mdm-v1.5.0
tf-mod-addon-mdm-v2.*
tf-mod-addon-mdm-v2.0.0
tf-mod-addon-mdmproxy-v1.*
tf-mod-addon-mdmproxy-v1.0.0
tf-mod-addon-mdmproxy-v1.0.1
tf-mod-addon-migrations-v1.*
tf-mod-addon-migrations-v1.0.0
tf-mod-addon-migrations-v2.*
tf-mod-addon-migrations-v2.0.0
tf-mod-addon-migrations-v2.0.1
tf-mod-addon-monitoring-v1.*
tf-mod-addon-monitoring-v1.0.0
tf-mod-addon-monitoring-v1.1.0
tf-mod-addon-monitoring-v1.1.1
tf-mod-addon-monitoring-v1.1.2
tf-mod-addon-monitoring-v1.1.3
tf-mod-addon-monitoring-v1.2.0
tf-mod-addon-monitoring-v1.3.0
tf-mod-addon-monitoring-v1.4.0
tf-mod-addon-monitoring-v1.4.1
tf-mod-addon-monitoring-v1.5.0
tf-mod-addon-monitoring-v1.5.1
tf-mod-addon-osquery-carve-split-account-osquery-carve-v1.*
tf-mod-addon-osquery-carve-split-account-osquery-carve-v1.0.0
tf-mod-addon-osquery-carve-split-account-osquery-carve-v1.1.0
tf-mod-addon-osquery-carve-split-account-split-account-v1.*
tf-mod-addon-osquery-carve-split-account-split-account-v1.0.0
tf-mod-addon-osquery-carve-split-account-split-account-v1.1.0
tf-mod-addon-osquery-carve-v1.*
tf-mod-addon-osquery-carve-v1.0.0
tf-mod-addon-osquery-carve-v1.0.1
tf-mod-addon-osquery-carve-v1.1.0
tf-mod-addon-osquery-perf-v1.*
tf-mod-addon-osquery-perf-v1.0.0
tf-mod-addon-saml-auth-proxy-v1.*
tf-mod-addon-saml-auth-proxy-v1.0.0
tf-mod-addon-saml-auth-proxy-v1.1.0
tf-mod-addon-saml-auth-proxy-v1.2.0
tf-mod-addon-saml-auth-proxy-v1.3.0
tf-mod-addon-ses-v1.*
tf-mod-addon-ses-v1.0.0
tf-mod-addon-ses-v1.1.0
tf-mod-addon-ses-v1.2.0
tf-mod-addon-vuln-processing-v1.*
tf-mod-addon-vuln-processing-v1.0.0
tf-mod-addon-vuln-processing-v1.1.0
tf-mod-addon-waf-alb-v1.*
tf-mod-addon-waf-alb-v1.0.0
tf-mod-addon-waf-alb-v2.*
tf-mod-addon-waf-alb-v2.0.0
tf-mod-byo-db-v1.*
tf-mod-byo-db-v1.0.0
tf-mod-byo-db-v1.1.0
tf-mod-byo-db-v1.2.0
tf-mod-byo-db-v1.3.0
tf-mod-byo-db-v1.3.1
tf-mod-byo-db-v1.3.2
tf-mod-byo-db-v1.4.0
tf-mod-byo-db-v1.5.0
tf-mod-byo-db-v1.5.1
tf-mod-byo-db-v1.6.0
tf-mod-byo-db-v1.7.0
tf-mod-byo-db-v1.7.1
tf-mod-byo-db-v1.8.0
tf-mod-byo-db-v1.9.0
tf-mod-byo-ecs-v1.*
tf-mod-byo-ecs-v1.0.0
tf-mod-byo-ecs-v1.1.0
tf-mod-byo-ecs-v1.2.0
tf-mod-byo-ecs-v1.3.0
tf-mod-byo-ecs-v1.4.0
tf-mod-byo-ecs-v1.4.1
tf-mod-byo-ecs-v1.5.0
tf-mod-byo-ecs-v1.6.0
tf-mod-byo-ecs-v1.6.1
tf-mod-byo-ecs-v1.7.0
tf-mod-byo-ecs-v1.8.0
tf-mod-byo-ecs-v1.8.1
tf-mod-byo-vpc-v1.*
tf-mod-byo-vpc-v1.0.0
tf-mod-byo-vpc-v1.1.0
tf-mod-byo-vpc-v1.10.0
tf-mod-byo-vpc-v1.10.1
tf-mod-byo-vpc-v1.11.0
tf-mod-byo-vpc-v1.12.0
tf-mod-byo-vpc-v1.12.1
tf-mod-byo-vpc-v1.2.0
tf-mod-byo-vpc-v1.3.0
tf-mod-byo-vpc-v1.4.0
tf-mod-byo-vpc-v1.5.0
tf-mod-byo-vpc-v1.6.0
tf-mod-byo-vpc-v1.6.1
tf-mod-byo-vpc-v1.7.0
tf-mod-byo-vpc-v1.7.1
tf-mod-byo-vpc-v1.8.0
tf-mod-byo-vpc-v1.8.1
tf-mod-byo-vpc-v1.8.2
tf-mod-byo-vpc-v1.8.3
tf-mod-byo-vpc-v1.9.0
tf-mod-root-v1.*
tf-mod-root-v1.0.0
tf-mod-root-v1.1.0
tf-mod-root-v1.1.1
tf-mod-root-v1.10.0
tf-mod-root-v1.11.0
tf-mod-root-v1.11.1
tf-mod-root-v1.2.0
tf-mod-root-v1.3.0
tf-mod-root-v1.4.0
tf-mod-root-v1.5.0
tf-mod-root-v1.5.1
tf-mod-root-v1.6.0
tf-mod-root-v1.6.1
tf-mod-root-v1.7.0
tf-mod-root-v1.7.1
tf-mod-root-v1.7.2
tf-mod-root-v1.7.3
tf-mod-root-v1.8.0
tf-mod-root-v1.9.0
tf-mod-root-v1.9.1
tf-mod-root-v1.9.2
v0.*
v0.0.4
v0.0.5
v0.0.6
v0.0.7
v4.*
v4.0.0
v4.0.0-rc3
v4.0.1
v4.1.0
v4.28.0
v4.36.0
v4.37.0
v4.43.4

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-34388.json"