CVE-2026-47833

CVSS 6.8 MEDIUMEPSS 0.1%CWE-59

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 6.8EPSS 0.1%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

18 Jun 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

setupBpmLogs follows symlink for bpm.log open and chown — container-to-host privilege escalation via /etc/shadow. A compromised process inside a bpm container can cause root to chown an arbitrary host file to vcap and append bpm JSON log lines to it. The chown alone lets the attacker take ownership of /etc/shadow and read every password hash on the host via the read-only /etc bind mount. This is a container-to-host confidentiality break affecting every bpm-managed job. Affected versions: bpm-release, all versions prior to v1.4.30.

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

Affected products

Cloud Foundry Foundation · bpm-release

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References

https://www.cloudfoundry.org/blog/cve-2026-47833-symlink-vulnerability-in-setupbpmlogs-allows-container-to-host-privilege-escalation-via-etc-shadow/