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VulnerabilityPublished

CVE-2026-48786: Fleet · Observer-class users can view team enroll secrets and credential-bearing configuration via target search endpoint

Affects github.com/fleetdm/fleet/v4Source GCVE Database

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Authoritative record:CVE-2026-48786· Medium 6.5

Not known to be exploited · CVSS 6.5 Medium : upgrade to 4.87.0 when convenient.

Data as of 10 Nov 2026, 23:24 UTC

CVSS 3.1 base score
6.5Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.4% chance of exploitation in 30 days – higher than 38% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 4.87.0
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 26 Aug 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 10 Nov 2026.

What to do

Upgrade github.com/fleetdm/fleet/v4 to 4.87.0.

Affected software

ProductAffectedFixed in
Gogithub.com/fleetdm/fleet/v4Affected
  • <4.87.0
Fixed in
  • 4.87.0

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Upgrade Fleet to version 4.87.0 or later where this issue is fixed. The vendor has provided an official fix. No additional mitigation steps are indicated.

Description

A vulnerability in Fleet versions prior to 4.87.0 allowed low-privilege observer-class users to access unmasked team enroll secrets and credential-bearing configuration via the target search endpoint. This flaw exposed sensitive information such as AWS secret access keys and proxy passwords. The issue was due to insufficient sanitization on the target search endpoint, unlike other team-facing endpoints that masked these fields for observers. The vulnerability is fixed in version 4.87.0.

References

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