How severe is CVE-2026-54421?

CVE-2026-54421 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2026-54421 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-54421?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-54421 have an EU (EUVD) identifier?

Yes. CVE-2026-54421 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36658.

When was CVE-2026-54421 published?

CVE-2026-54421 was published on 2026-06-14 and last updated on 2026-06-17.

CVE-2026-54421

CVE-2026-54421 is a medium-severity vulnerability with a CVSS 3.x base score of 6.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-212.

Key facts

Severity: Medium (CVSS 3.x base score 6.8)
EPSS exploit prediction: 0% (21st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-36658
Weakness: CWE-212
Published: 2026-06-14
Last modified: 2026-06-17

Description

In OpenStack Ironic before 37.0.1, 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.

Frequently asked questions

What is CVE-2026-54421?: In OpenStack Ironic before 37.0.1, 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.
How severe is CVE-2026-54421?: CVE-2026-54421 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2026-54421 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-54421?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-54421 have an EU (EUVD) identifier?: Yes. CVE-2026-54421 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36658.
When was CVE-2026-54421 published?: CVE-2026-54421 was published on 2026-06-14 and last updated on 2026-06-17.

References

Other CWE-212 vulnerabilities

CVE-2022-2818 — Critical (CVSS 9.8): Improper Removal of Sensitive Information Before Storage or Transfer in GitHub repository cockpit-hq/cockpit prior to…
CVE-2020-11684 — Critical (CVSS 9.1): AT91bootstrap before 3.9.2 does not properly wipe encryption and authentication keys from memory before passing control…
CVE-2026-39937 — High (CVSS 8.8): Improper removal of sensitive information before storage or transfer vulnerability in The Wikimedia Foundation…
CVE-2022-30617 — High (CVSS 8.8): An authenticated user with access to the Strapi admin panel can view private and sensitive data, such as email and…
CVE-2022-0355 — High (CVSS 8.8): Improper Removal of Sensitive Information Before Storage or Transfer in NPM simple-get prior to 4.0.1.
CVE-2021-0340 — High (CVSS 8.8): In parseNextBox of IsoInterface.java, there is a possible leak of unredacted location information due to improper input…

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