CVE-2026-41859

CVSS 7.1 HIGHEPSS 0.1%CWE-295

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 7.1EPSS 0.1%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

04 Jun 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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

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

Affected products

Cloud Foundry Foundation · BOSH

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References

https://www.cloudfoundry.org/blog/cve-2026-41859-missing-tls-in-nats-sync/