CVE-2020-26276

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Source
https://cve.org/CVERecord?id=CVE-2020-26276
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-26276.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2020-26276
Aliases
Published
2020-12-17T20:15:13.760Z
Modified
2026-05-30T16:34:33.300716Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

Fleet is an open source osquery manager. In Fleet before version 3.5.1, due to issues in Go's standard library XML parsing, a valid SAML response may be mutated by an attacker to modify the trusted document. This can result in allowing unverified logins from a SAML IdP. Users that configure Fleet with SSO login may be vulnerable to this issue. This issue is patched in 3.5.1. The fix was made using https://github.com/mattermost/xml-roundtrip-validator If upgrade to 3.5.1 is not possible, users should disable SSO authentication in Fleet.

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
55a2aa2c955a99483b730e60207e4afada7bda8a
Fixed
57812a532e5f749c8e18c6f6a652eca65c083607
Database specific 
{
    "cpe": "cpe:2.3:a:fleetdm:fleet:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "3.5.1"
        }
    ],
    "source": [
        "CPE_RANGE",
        "REFERENCES"
    ]
}

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
3.2.0
3.3.0
3.4.0
3.5.0

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-26276.json"