CVE-2026-41704

Blobstore deletion via unvalidated agent-supplied IDs

Published May 27, 2026 · Updated May 27, 2026

Improper access control in BOSH Director before 282.1.12 allows local users with root on a managed VM to delete shared blobstore data. AgentClient passes agent-supplied compile_log_id and exception blobstore_id values to ResourceManager, which fetches and deletes them without UUID, ownership, or namespace validation. Root access to one deployed VM is required; with a local blobstore, traversal in the identifier also reads and deletes arbitrary Director files.

CVSS severity6.8
Medium
EPSS probability0.08%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in BOSH Director before 282.1.12 allows local users with root on a managed VM to delete shared blobstore data. AgentClient passes agent-supplied compile_log_id and exception blobstore_id values to ResourceManager, which fetches and deletes them without UUID, ownership, or namespace validation. Root access to one deployed VM is required; with a local blobstore, traversal in the identifier also reads and deletes arbitrary Director files.

The record

CVE
CVE-2026-41704
Published
May 27, 2026
Updated
May 27, 2026
Vendor
Cloud Foundry Foundation
Product
BOSH Director
Classifications
CWE-284, T1485
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. May 27, 2026CVE publishedPublication date reported by the CVE source.
  2. May 27, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <282.1.12

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Cloud Foundry Foundation · BOSH Directorversion=0 <282.1.12

Published CVSS scores

6.8VMware CNACVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:H
5.0VMware CNACVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:N/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-284Improper Access Control
T1485Data Destruction

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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