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Description

A network man-in-the-middle between nats-sync and the BOSH director can steal the director credentials (Basic auth header or UAA client secret) and can tamper with the VM list that is written into the NATS authorization file. Stolen credentials grant administrative director access. UsersSync#bosh_api_response_body builds a Net::HTTP client with verify_mode = OpenSSL::SSL::VERIFY_NONE for every director call (/info, /deployments, /deployments/<name>/vms). Affected versions: - BOSH: all versions prior to v282.1.9 (inclusive); fixed in v282.1.9 or later

PUBLISHED Reserved 2026-04-22 | Published 2026-06-04 | Updated 2026-06-04 | Assigner vmware




HIGH: 7.1CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:H/SI:H/SA:H

HIGH: 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Problem types

CWE-295: Improper Certificate Validation

Product status

Default status
unaffected

Any version before 282.1.9
affected

References

www.cloudfoundry.org/...2026-41859-missing-tls-in-nats-sync/

cve.org (CVE-2026-41859)

nvd.nist.gov (CVE-2026-41859)

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