CVE-2026-47833
- State
- Published
- Severity
- 6.8 Medium
- Published
- Jun 18, 2026
- Updated
- Jun 18, 2026
- Reserved
- May 20, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.8 Medium | 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 | vmware |
| 3.1 | 6.1 Medium | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N | vmware |
Weaknesses
- CWE-59 Improper Link Resolution Before File Access ('Link Following')
Affected Products
| Product | Versions |
|---|---|
bpm-releaseCloud Foundry Foundation |
|
References
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