Is CVE-2026-54421 in the CISA KEV catalog?

No. CVE-2026-54421 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-54421?

CVE-2026-54421 has a CVSS v3 base score of 6.8 (MEDIUM).

What is the EPSS score for CVE-2026-54421?

CVE-2026-54421 has an EPSS score of 0.29% (21th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-54421?

Upgrade ironic on debian unstable to 1:35.0.1-6 or later.

CVE & CISA-KEV Catalog

CVE-2026-54421

MEDIUM

6.8

CVSS v3

NVD

Description

In OpenStack Ironic through 35.0.1, when applying a PATCH to update fields in volume properties the user is authorized for, Ironic can return unredacted sensitive information (such as iSCSI credentials). The PATCH outcome is a security issue; the POST outcome is not a security issue.

CWE-212

How to fix

Remediation Available

ironicDebian

Fixed in:1:35.0.1-6CVE-2026-54421

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredHigh

User InteractionNone

ScopeChanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N

Exploit Intelligence

0.29%probability of exploitation in 30 days

21stpercentile

Low risk: more likely to be exploited than 21% of all known CVEs.

References

Other references1

bugs.launchpad.net

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-16.