CVE-2026-47826: The blobs.yml path key traversal vulnerability in the BOSH CLI tool allows an attacker to write arbitrary file

Q: How do I fix CVE-2026-47826?

bosh cli: upgrade to 7.10.4. Exact commands for each OS are on this page.

Q: Is CVE-2026-47826 being exploited?

CVE-2026-47826 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-47826 affect?

CVE-2026-47826 affects bosh cli. Severity is critical (CVSS 9.1). The blobs.yml path key traversal vulnerability in the BOSH CLI tool allows an attacker to write arbitrary files and exfiltrate sensitive information. Affected versions: BOSH CLI tool versions prior to v7.10.4.

Q: How urgent is CVE-2026-47826?

Priority 48/100. Critical severity; Remotely exploitable, no login, no user action

This month

CRITICAL 9.1REMOTEUPGRADE

CVE-2026-47826 is a critical-severity flaw (CVSS 9.1) affecting bosh cli. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The blobs.yml path key traversal vulnerability in the BOSH CLI tool allows an attacker to write arbitrary files and exfiltrate sensitive information. Affected versions: BOSH CLI tool versions prior to v7.10.4.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.1 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.5% (top 55%)
CISA exploited list	No
Weakness	CWE-22
Published	2026-07-09
Last modified	2026-10-25

Publisher (CNA): VMware · Vendor: cloudfoundry

Last updated 2026-10-25 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-07-09 07:16 UTCPublished CVE record published
2026-10-25 17:10 UTCUpdated Record last modified

cloudfoundry bosh cli UPGRADE

Affected: < 7.10.4

Fixed in: 7.10.4

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy bosh-cli || rpm -q bosh-cli || bosh-cli --version

2. UPGRADE to 7.10.4 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade bosh-cli

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade bosh-cli

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-47826?

bosh cli: upgrade to 7.10.4. Exact commands for each OS are on this page.

Is CVE-2026-47826 being exploited?

CVE-2026-47826 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-47826 affect?

CVE-2026-47826 affects bosh cli. Severity is critical (CVSS 9.1). The blobs.yml path key traversal vulnerability in the BOSH CLI tool allows an attacker to write arbitrary files and exfiltrate sensitive information. Affected versions: BOSH CLI tool versions prior to v7.10.4.

How urgent is CVE-2026-47826?

Priority 48/100. Critical severity; Remotely exploitable, no login, no user action

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CVE-2026-47828 HIGH 8.8 UPGRADE During bosh create-env and bosh delete-env, the CLI uploads compiled CPI packages and rendered job templates t
CVE-2026-41857 HIGH 7.8 UPGRADE A compromised or malicious BOSH Director can execute arbitrary shell commands on the operator's workstation wh

References

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