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CVE-2026-47833

MEDIUM
6.1
CVSS 3.1
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.

Metadata

CVE ID
CVE-2026-47833
State
PUBLISHED
Assigner
vmware
Reserved
2026-05-20 10:00 UTC
Published
2026-06-18 18:30 UTC
Last updated
2026-06-18 19:08 UTC
Primary CWE
CWE-59
CWE-59: Improper Link Resolution Before File Access ('Link F…
Vendor / Product
Cloud Foundry Foundation / bpm-release
Sources
cve.org  ·  NVD

Severity & Metrics

6.1 MEDIUM CVSS 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
SSVC — CISA Coordinator
Exploitation
none
Automatable
no
Tech. Impact
total
Affected products (1)
VendorProductPlatformVersions
Cloud Foundry Foundation bpm-release — 0 < 1.4.30
Weakness (CWE)
CWESourceDescription
CWE-59 cna CWE-59: Improper Link Resolution Before File Access ('Link Following')
CVSS scores (2)
ScoreSeverityVersionSourceVector
6.8 MEDIUM 4.0 cna 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
6.1 MEDIUM 3.1 cna CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
References (1)
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