Detections
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SCA: security update for github.com/fleetdm/fleet, github.com/fleetdm/fleet/v4 (GHSA-gfpw-jgvr-cw4j)

medium Tenable Cloud Security Plugin ID 436845

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - fleetdm/fleet is open source device management software. Prior to versions 4.78.2, 4.77.1, 4.76.2, 4.75.2,
 and 4.53.3, if Windows MDM is enabled, an unauthenticated attacker can exploit this XSS vulnerability to
 steal a Fleet administrator's authentication token (FLEET::auth_token) from localStorage. This could allow
 unauthorized access to Fleet, including administrative access, visibility into device data, and
 modification of configuration. Versions 4.78.2, 4.77.1, 4.76.2, 4.75.2, and 4.53.3 fix the issue. If an
 immediate upgrade is not possible, affected Fleet users should temporarily disable Windows MDM.
 (CVE-2026-22808)

See Also

https://github.com/advisories/GHSA-gfpw-jgvr-cw4j

Plugin Details

Severity: Medium

ID: 436845

Version: Revision 1.12

Type: Local

Family: SCA Checks

Published: 1/21/2026

Updated: 7/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 2.3

Percentile: 9.42

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.1

Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:N

CVSS Score Source: CVE-2026-22808

CVSS v3

Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4.7

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: Medium

Base Score: 5.5

Threat Score: 1.4

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 1/20/2026

Vulnerability Publication Date: 1/20/2026

Reference Information

CVE: CVE-2026-22808

cwe: CWE-79