User-controlled variables inserted unescaped into shell scripts and Kubernetes manifests

published 2026-08-17 2 mo ago modified 2026-09-01 2 mo ago also EUVD-2026-60193

cvss: 7.7; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 27%
public exploits: 0; none known

In openshift-metal3/fakefish there is a repeated pattern in some of the scripts where shell variables are injected without quoting them either into command lines or into manifests. This mostly applies to the Image URL and BMC credentials (which are not verified by FakeFish).

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 2 mo ago (2026-08-17)

Exploit prediction

0.34% chance of exploitation in the next 30 days, higher than 27% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	7.7	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N

Affected products

openshift-metal3 fakefish

Classification

Weakness

CWE-78 Improper Neutralization of Special Elements used in an OS Command

References

github.com /openshift-metal3/fakefish/security/advisories/GHSA-xfhv-fp7q-v2cc
vendor-advisory

Sources

CVE List CVE-2026-71567
NVD CVE-2026-71567

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary