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CVE-2026-12975VulnerabilityPublished Updated

Io.apicurio:apicurio registry schema util common: Apicurio Registry utilities allow SSRF and denial of service through

Affects io.apicurio:apicurio-registry-schema-util-commonSource GCVE Database

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Authoritative record:CVE-2026-12975· High 8.5

Not known to be exploited · CVSS 8.5 High : upgrade to 3.3.1 soon.

Data as of 4 Nov 2026, 20:35 UTC

CVSS 3.1 base score
8.5High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.4% chance of exploitation in 30 days – higher than 38% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 3.3.1, 3.2.6
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 25 Jun 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 4 Nov 2026.

What to do

Upgrade io.apicurio:apicurio-registry-schema-util-common to 3.3.1; io.apicurio:apicurio-registry-schema-util-common to 3.2.6.

Affected software

ProductAffectedFixed in
Mavenio.apicurio:apicurio-registry-schema-util-commonAffected
  • >=3.3.0 <3.3.1
Fixed in
  • 3.3.1
Mavenio.apicurio:apicurio-registry-schema-util-commonAffected
  • <3.2.6
Fixed in
  • 3.2.6

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

A patch is available and should be applied by upgrading to Apicurio Registry versions 3.2.6 or 3.3.1 or later. The vendor advisory from Red Hat confirms the availability of these fixes. Users should ensure that all relevant errata are applied. No additional mitigations are specified beyond applying the official update.

Description

A vulnerability in Apicurio Registry's ContentTypeUtil.isParsableXml() method allows attackers with artifact-write permission, or unauthenticated users under default configuration, to upload crafted XML documents that exploit an unhardened SAXParser. This can lead to blind server-side request forgery (SSRF) via external DTD/entity fetch or denial of service (DoS) through entity expansion. The flaw is identified as CWE-611 and affects versions prior to 3.2.6 and versions from 3.3.0 up to but not including 3.3.1. A patch is available in versions 3.2.6 and 3.3.1.

References

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