Cloud Foundry: Security Vulnerabilities
When the director sends a long-running request (e.g. compile_package), the agent's reply JSON is consumed by AgentClient. inject_compile_log (line 332-339) reads response['value']['result']['compile_log_id'] and format_exception (line 318-325) reads exception['blobstore_id']; both pass the agent-supplied string unmodified to download_and_delete_blob(blob_id) (line 344-349), which calls @resource_manager.get_resource(blob_id) and, in an ensure block, @resource_manager.delete_resource(blob_id). Api::ResourceManager forwards the id straight to blobstore.get(id) / blobstore.delete(id). When the director is configured with the local blobstore provider, Blobstore::LocalClient#object_file_path(oid) is File.join(@blobstore_path, oid) (local_client.rb:54-56) with no normalisation, so oid = "../../jobs/director/config/director.yml" resolves outside the blobstore root.
Affected versions:
BOSH Director: All versions prior to v282.1.12
CVSS Score
4.3
EPSS Score
0.0
Published
2026-05-27
AgentClient#handle_method (lines 264-303) processes every NATS reply. It calls inject_compile_log (line 273) on every response, which reads response['value']['result']['compile_log_id'] (line 332-338) and passes it to download_and_delete_blob. Separately, any response containing 'exception' goes through format_exception (lines 308-325), which reads exception['blobstore_id'] and also calls download_and_delete_blob. That helper (lines 344-349) calls ResourceManager#get_resource(blob_id) and, in an ensure block, ResourceManager#delete_resource(blob_id). ResourceManager (resource_manager.rb:62-70) calls blobstore.delete(id) on the single shared Director blobstore with no UUID-format check, no ownership check, and no namespace prefix.
Affected versions:
BOSH Director: All versions prior to v282.1.12
CVSS Score
6.8
EPSS Score
0.0
Published
2026-05-27
BOSH System Metrics Server releases prior to 0.1.0 exposed the UAA password as a flag to a process running on the BOSH director. It exposed the password to any user or process with access to the same VM (through ps or looking at process details).
CVSS Score
6.5
EPSS Score
0.003
Published
2020-10-02
Cloud Foundry BOSH 270.x versions prior to v270.1.1, contain a BOSH Director that does not properly redact credentials when configured to use a MySQL database. A local authenticated malicious user may read any credentials that are contained in a BOSH manifest.
CVSS Score
6.0
EPSS Score
0.0
Published
2019-06-19
Cloud Foundry Bits Service, versions prior to 2.18.0, includes an information disclosure vulnerability. A remote malicious user may execute a timing attack to brute-force the signing key, allowing them complete read and write access to the the Bits Service storage.
CVSS Score
8.1
EPSS Score
0.003
Published
2018-12-10
Cloud Foundry CF Networking Release, versions 2.11.0 prior to 2.16.0, contain an internal api endpoint vulnerable to SQL injection between Diego cells and the policy server. A remote authenticated malicious user with mTLS certs can issue arbitrary SQL queries and gain access to the policy server.
CVSS Score
6.6
EPSS Score
0.005
Published
2018-10-12
Cloud Foundry BOSH, versions v264 prior to v264.14.0 and v265 prior to v265.7.0 and v266 prior to v266.8.0 and v267 prior to v267.2.0, allows refresh tokens to be as access tokens when using UAA for authentication. A remote attacker with an admin refresh token given by UAA can be used to access BOSH resources without obtaining an access token, even if their user no longer has access to those resources.
CVSS Score
8.4
EPSS Score
0.006
Published
2018-10-05
An issue was discovered in Cloud Foundry Foundation BOSH Release 261.x versions prior to 261.3 and all 260.x versions. In certain cases an authenticated Director user can provide a malicious checksum that could allow them to escalate their privileges on the Director VM, aka "BOSH Director Shell Injection Vulnerabilities."
CVSS Score
8.8
EPSS Score
0.002
Published
2017-06-13
Cloud Foundry Diego 0.1468.0 through 0.1470.0 allows remote attackers to cause a denial of service.
CVSS Score
7.5
EPSS Score
0.006
Published
2017-06-08