How severe is CVE-2026-12975?

CVE-2026-12975 has a CVSS 3.x base score of 8.5, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability high.

Is CVE-2026-12975 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-12975?

CVE-2026-12975 affects Redhat Build Of Apicurio Registry. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-12975?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-12975 have an EU (EUVD) identifier?

Yes. CVE-2026-12975 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-39574.

When was CVE-2026-12975 published?

CVE-2026-12975 was published on 2026-06-25 and last updated on 2026-07-06.

CVE-2026-12975

CVE-2026-12975 is a high-severity vulnerability in Redhat Build Of Apicurio Registry with a CVSS 3.x base score of 8.5. 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-611.

Key facts

Severity: High (CVSS 3.x base score 8.5)
EPSS exploit prediction: 0% (14th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-39574
Weakness: CWE-611
Affected product: Redhat Build Of Apicurio Registry
Published: 2026-06-25
Last modified: 2026-07-06

Description

A flaw was found in Apicurio Registry. The ContentTypeUtil.isParsableXml() method creates a SAXParserFactory without enabling secure processing features or disabling external entity resolution. An attacker with artifact-write permission (or unauthenticated when the registry runs with default configuration) can upload a crafted XML document to trigger blind server-side request forgery (SSRF) via external DTD/entity fetch, or cause denial of service via entity expansion.

Frequently asked questions

What is CVE-2026-12975?: A flaw was found in Apicurio Registry. The ContentTypeUtil.isParsableXml() method creates a SAXParserFactory without enabling secure processing features or disabling external entity resolution. An attacker with artifact-write permission (or unauthenticated when the registry runs with default configuration) can upload a crafted XML document to trigger blind server-side request forgery (SSRF) via external DTD/entity fetch, or cause denial of service via entity expansion.
How severe is CVE-2026-12975?: CVE-2026-12975 has a CVSS 3.x base score of 8.5, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability high.
Is CVE-2026-12975 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-12975?: CVE-2026-12975 affects Redhat Build Of Apicurio Registry. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-12975?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-12975 have an EU (EUVD) identifier?: Yes. CVE-2026-12975 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-39574.
When was CVE-2026-12975 published?: CVE-2026-12975 was published on 2026-06-25 and last updated on 2026-07-06.

References

Affected products (1)

cpe:2.3:a:redhat:build_of_apicurio_registry:*:*:*:*:*:*:*:*

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