How severe is CVE-2021-3914?

CVE-2021-3914 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2021-3914 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-3914?

CVE-2021-3914 primarily affects Redhat Build Of Quarkus. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-3914?

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

When was CVE-2021-3914 published?

CVE-2021-3914 was published on 2022-08-25 and last updated on 2026-06-17.

CVE-2021-3914

CVE-2021-3914 is a medium-severity vulnerability in Redhat Build Of Quarkus with a CVSS 3.x base score of 6.1. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
EPSS exploit prediction: 0% (36th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Redhat Build Of Quarkus
Published: 2022-08-25
Last modified: 2026-06-17

Description

It was found that the smallrye health metrics UI component did not properly sanitize some user inputs. An attacker could use this flaw to conduct cross-site scripting attacks.

Frequently asked questions

What is CVE-2021-3914?: It was found that the smallrye health metrics UI component did not properly sanitize some user inputs. An attacker could use this flaw to conduct cross-site scripting attacks.
How severe is CVE-2021-3914?: CVE-2021-3914 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2021-3914 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-3914?: CVE-2021-3914 primarily affects Redhat Build Of Quarkus. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-3914?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-3914 published?: CVE-2021-3914 was published on 2022-08-25 and last updated on 2026-06-17.

References

Affected products (4)

cpe:2.3:a:redhat:build_of_quarkus:*:*:*:*:*:*:*:*
cpe:2.3:a:redhat:build_of_quarkus:-:*:*:*:text-only:*:*:*
cpe:2.3:a:redhat:openshift_application_runtimes:1.0:*:*:*:*:*:*:*
cpe:2.3:a:redhat:smallrye_health:-:*:*:*:*:*:*:*

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