CVE-2026-41857: bosh cli Command Injection — Fix

Description

A compromised or malicious BOSH Director can execute arbitrary shell commands on the operator's workstation when the operator runs bosh ssh (or bosh scp/bosh logs -f) with default flags. Affected versions: BOSH CLI versions prior to 7.10.5.

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CVSS v3.1 Score

7.8

HIGH

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS — Exploit Prediction

0.0015

Probability of exploitation

0.04%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-78 OS Command Injection

Affected Products

Vendor	Product	Versions
cloudfoundry	bosh_cli	< 7.10.5

References

Advisories & Patches

https://www.cloudfoundry.org/blog/cve-2026-41857-bosh-cli-shell-injection/

Frequently Asked Questions

What is CVE-2026-41857? +

A compromised or malicious BOSH Director can execute arbitrary shell commands on the operator's workstation when the operator runs bosh ssh (or bosh scp/bosh logs -f) with default flags. Affected versions: BOSH CLI versions prior to 7.10.5. It has a CVSS v3.1 base score of 7.8 (HIGH).

How severe is CVE-2026-41857? +

CVE-2026-41857 has a CVSS v3.1 score of 7.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0015, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-41857? +

CVE-2026-41857 affects products from cloudfoundry, specifically: bosh_cli. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-41857? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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